Monday, December 08, 2008

Books about Kitties: Dewey and Cheezburgers

The Winter Solstice is quickly approaching, so I know you're looking for gifts for the special people in your life. Lots of people like both kitties and books, so here are two book reviews of recently read kitty-themed books.

Dewey: The Small-Town Library Cat Who Touched the World by Vicki Myron:

On a cold winter night in 1988, someone dumped a small kitten into the book slot at the library in Spencer, Iowa. Naturally, the cat was dubbed "Dewey" and subsequently adopted by the library. Dewey: The Small-Town Library Cat Who Touched the World, while nominally the story of this apparently adorable cat, also tells the story of the librarian, Vicki Myron, who was Dewey's principal steward for the next 18 years. OK, I confess, I got this book nearly two months ago, from the publisher for free in exchange for reviewing it, no less. I had it read less than two weeks after finishing it, but I just couldn't review it. I was already having a fairly difficult month (why do you think I haven't been blogging like I used to?), and then here comes this book that I think is going to be chock full of adorable stories about a cute kitty being cute in a library. So I read it. And, sure enough, there are lots of funny stories about Dewey being a kitty, but there is also a lot about what corn-growing Iowa was like in the 1980s and 90s ... and about the ordinary yet difficult life of Myron herself, and how like many pets since humans have started having pets, Dewey somehow made everything a little bit better. The writing is straightforward and unpretentious—it's really just a librarian talking about her cat—but as the book is a quick read (and enjoyable, once you've located your box of tissues), it's sure to be a good gift for anyone who likes stories about cats or libraries.


For something more upbeat, here's a review of I Can Has Cheezburger?: A LOLcat Colleckshun with more words in the review than in the entire book, by probably an order of magnitude:

It's great having a hardcopy of lolcats (years from now this will still be a conversation starter, whether it lives in a bathroom or on a coffee table), and I was majorly looking forward to receiving my solid dose of happiness-in-book-form in the mail. As expected, it is pretty entertaining, but as other reviewers have noted, it seems that somehow the funniest lolcats were not selected for the book. (Of course, there's no selection which would not engender this kind of response from some group of people, but even though I'm one of Those People who check icanhascheezburger.com several times a day [I bought the book, this shouldn't be surprising, OK?], there were several picture/caption combinations in here that made me just go, "wtf? I don't get it. At all.") The bigger complaint that I have with the book, however, is the presentation: it could do with being a tad bigger, and having some space around the pictures. As is, it is sometimes difficult to tell immediately whether or not the two facing pages are one big lolcat or two completely unrelated ones, and the result is a bit of information overload (and not in a good way, unfortunately). There are several pages on which the presentation is really well done; some space around the picture, a cute little (unrelated) drawing. A few pages are "instruction manuals" or "classroom styles," teaching cats what such terms as "invisible" and "in ur" mean. (Though, again, these pages suffer from the page-size issue.) It's nice to see, in these cases, a presentation which isn't merely "paste picture from int0rnet into book."

Regardless of all these complaints, this LOLcat Collekshun is still a book of lolcats, and any fan of the meme will be happy to get a copy for Christmas or a birthday or a "just cuz." Srsly.

Wednesday, October 01, 2008

Book Review: Autism's False Prophets by Paul Offit

I recently received and read Autism's False Prophets: Bad Science, Risky Medicine, and The Search for a Cure by Paul Offit through the ScienceBlogs Book Club. Offit first details the history of various attempts at defining the cause of and curing autism, focusing the most on first the MMR vaccine and then thiomersol (which contains mercury), which is contained in many vaccines (though not MMR).

In general I found this book interesting and educational (all I knew going in was that the "vaccines cause autism" nonsense was both quackery and dangerous), and I recommend it to anyone interested in the so-called controversy—there is no controversy as far as the science is concerned—as well as for the book's interesting discussion on the interaction between science and the public via the media. People distrust science and its authority figures all the time; usually this just leads to ignorance, but in the case of "let's not vaccinate our kids" it can lead to death. Which isn't cool.

Summary: Autism's False Prophets begins by offering a pre-vaccine history of autism and attempts to cure it. A pattern is established: people come up with some desperate theory, put a lot of time and effort and money in trying to "cure" their children, some of the "cures" wind up doing severe damage, parents move to next theory. Then enters the vaccine theory, which is actually two-fold. It begins in England with Andrew Wakefield announcing that the Measles, Mumps, and Rubella (MMR) vaccine increases rates of autism; he's even got an (unsupported) idea as to why this should be the case. (People seemed to not mind that he's had it out against MMR since the 1980s.) Meanwhile, as the MMR-autism link isn't able to be reproduced in independent studies and Wakefield is exposed as a fraud, a panel in the US realizes that the amount of ethylmercury in vaccines (used as a preservative, which makes the vaccine both cheaper and safer to use) is higher than the amount of recommend safe-levels of methylmercury. Spurred on by parents who have decided that their kids got autism after getting their vaccines (most austism symptoms become the most apparent about a year or so of age, right around when kids get many of their vaccines, so the emotional causal link isn't unsurprising), the panel figures that there isn't any harm in being cautious. So they announce that while there isn't any reason to be afraid, they will be looking into the situation. And all hell breaks loose.

Offit traces this aftermath right up to the Omnibus Autism Proceedings, a huge court case of thousands of parents claiming that vaccines caused autism in their children; the court's decision is due out early 2009. Offit then discusses how this controversy is a classic example of fear, scandal, and headlines driving the media narrative more than responsibly informing the public of the facts: the scientific case showing no linkage between vaccines and autism has actually been established for some years now. But, Offit argues, the public equates going online and reading what shows up on a Google search with scientific literacy, and our culture likes to buck authority, and so the result is kids dying of measles. The book closes with a short look into what actually does cause autism (it's genetic), and how a few parents of autistic children who know vaccines weren't the cause—and who don't like having their children referred to as "mad," "damaged," or "soulless"—have been responding to this whole fiasco.

Review: In general, I liked this book and found it easy to read. However, there were several stylistic points which were downright annoying. (I get the impression that while the author did his job, the editor did not.) First, there are several simultaneous storylines weaved throughout the text, yet as the story is not always told chronologically, it's difficult to keep any of the dates and the relative orderings of different "plots" straight. In this same vein, the book is written with the understanding that vaccines do not cause autism, but often the story is told like it is a story, a thriller: the case against vaccines-cause-autism isn't made strongly and irrevocably until well into the book, so someone could easily read halfway and think "zomg! conspiracy!!!" Also, as this is a book talking about how important believing the scientific consensus is, I would have appreciated it if the end notes listed at the back of the book were actually marked in the text itself. The organization of the book is also somewhat shaky, causing some interesting points get a bit buried in the text. For example: if vaccines-cause-autism really is this big conspiracy, then how come the scientists, etc. supposedly perpetuating this conspiracy vaccinate their own kids? Or that kids absorb more methylmercury from breast milk and baby formula than from vaccines in their first few months of life anyhow, a fact which is just mentioned in an off-hand kind of way in the middle of some chapter.

The two chapters towards the end of the book on science and the media and how the general public portrays science were both interesting and elucidating. I can't come up with solutions to these problems, but Offit at least lays out the issues well.

Monday, September 15, 2008

More Outliers from the Mass–Metallicity Relation


Last week, my second paper on outliers from the mass–metallicity relation showed up on astro-ph. In the first one, which I described here, was on the low-mass high-metallicity outliers from the relation; I described in that first post more about what this so-called "mass–metallicity relation" thing actually is. We concluded in that paper that those galaxies must be running out of star-forming gas, and thus nearing the end of their star formation.

In Paper II, we are looking at the other corner of the mass–metallicity plane: massive low-metallicity galaxies. (Yes, it is easy to get tongue-tied in this game.) Most of the 42 galaxies in our sample look like this:They are very blue and what we astronomers called "disturbed." That's fancy-talk for "they've been playing rough with their neighbors and so their gas and stars have been all moved around so they look morphologically... disturbed." The key here is that simulations have shown that as galaxies interact, gas from really large scales will typically get drained into the centers of the galaxies. As it turns out, this large-scale gas will generically have a much lower metallicity than the gas originally at the galaxy center, so the large-scale gas inflow will effectively dilute the central gas. Relative to the amount of time we can expect for the star-formation to continue, it won't take very long for this new gas to get re-enriched by metals formed during the star formation itself, so we can expect for these luminous low-metallicity galaxies to be relatively rare.

Monday, September 08, 2008

Book Review: Halima Bashir's Tears of the Desert

Over the weekend I read Tears of the Desert: A Memoir of Survival in Darfur by Halima Bashir.

Tears of the Desert details the life of Halima Bashir, a doctor who grew up in Darfur and now lives in the UK. Her story is told in a straightforward manner: how she grew up and how her family and village were important to her, how she went to school and enjoyed it and eventually went on the medical school, how war crept into her life until it became un-ignorable and eventually destroyed her life, her home, her family, and how she finally escaped from Sudan and managed to put together a new life in England. It most places—even the childhood stories—the story is riveting (which, unfortunately, also means that some of the explicit statements of foreboding come across and cheesy and unecessary). The storytelling is also often unexpectedly hilarious; I found myself laughing out loud quite a few times.

As a personal accounting of the history of the Darfur conflict, Tears of the Desert is a powerful story of how innocent lives are completely torn asunder. Bashir has lived through things that most of her readers cannot possibly imagine (yet, of course, as the book is written in the first person, we the readers know that, she at least, has survived). Her story thrusts raw emotion into the too easily glossed-over refugee and death statistics streaming out of the region. However, I found the book almost too insular at times; for example, the only year explicitly stated (aside from in the short epilogue), is the date of Bashir's birth: 1979. I was constantly adding and subtracting to determine approximate dates, and so as an actual history Tears of the Desert unfortunately falls a little short and does not serve well as an introduction to the Darfur crisis, and I fear that in ten to twenty years this fact will make it an even more difficult read. Likewise, no map is offered and only a brief description as to the underlying cause of the conflict and why the UN is doing little to stop it is given in the epilogue.

Regardless, a reader who first spends half an hour reading about the Darfur situation online should have plenty of context in which to set this book, and Tears of the Desert provides a far more personal and accessible accounting than anything the internet (or most anywhere else) has to provide.

Tears of the Desert will be on sale in the US on September 9, 2008.

Sunday, September 07, 2008

Book Review: Coming of Age in the Milky Way by Timothy Ferris

(Two posts in less than a week. I know. Don't get too excited.)

I recently finished reading Timothy Ferris's Coming of Age in the Milky Way. I admit: it was on a recommendation list somewhere and I was intrigued by the title, so when I saw it at a local used bookstore, I snagged it. I have not been disappointed.

Summary: Coming of Age in the Milky Way tells the story of how humankind came to know its place in the universe. Though the book has three distinct themes (Space, Time, and Creation), the main focus is on Space: how did we learn the size of the Earth, the extent of and laws governing the Solar System, that the Milky Way is a "galaxy" and only one of many, and that the universe is giant and expanding? The other two sections expand on this history of revelations. The Time section discusses how we discovered that the Earth (as well as humans as a species and the universe as a whole) are not unchanging, static and infinite, and the Creation section focuses more on the marriage of quantum physics and cosmology: how did the elements and subatomic particles and, indeed, the universe itself come to be?

Review: As an astronomer, none of the actual science here was new to me, but I can say that, unlike many popular treatments of physics, very little of the descriptions made my inner "but that's not really true ..." voice cringe. (There were maybe two pages like this, and one of them may have actually involved something that was believed to be true in the late 1980s.)

Primarily, though, this is a history book, and I found the history fascinating. Ferris paints a detailed and colorful portait of the personalities and worldly changes (politics, well-timed supernovae, etc.) that led to these revelations (and occasional setbacks). The writing is lyrical, poetic even, and yet detailed and straightforward when need be. The book is stock full of quotes, none of which feel out of place or difficult to read (as thousand-year-old quotations are apt to be). The transition of this writing style into the modern age—when quotes were garnered via interviews instead of meticulous combing of however-the-hell people figure these things out—was seemless. Though published in 1988, Coming of Age in the Milky Way is surprisingly not out-of-date 20 years later; as the views of the 1980s are not treated as The Answer, a 21st century reader will only notice that the story seems to stop a little earlier than expected.

I thoroughly enjoyed this book, and I recommend it to anyone interested in the history of science, the process of science, or general astronomy or physics.

Friday, September 05, 2008

Citations and Paper Length

Interesting paper on astro-ph this morning from Kris Stanek. As it turns out, in general, longer papers tend to get cited more. The exception is that, in astronomy, two of the major journals have a "Letters" section, which limits papers to 4 pages. These Letters do tend to be cited more than other short papers (presumably because they are Really just longer papers squeezed into a shorter format). Thus the graph of number of citations versus page length looks an awful lot like the state of Ohio:
The paper also includes some silliness-tinged career advice.

Friday, July 11, 2008

In Which I Disucss What I Have Been Doing Instead Of Blogging

The astute reader has pointed out that I have not exactly been "updating" this blog lately, which is to say, I haven't posted anything in basically two months or more.

Thing is, I haven't really had much to say. I spent a week at the beach (oh, such a perfect beach it was) in June with my family and the significant other. There was sand and ocean and sky and rum and sleep and shrimp boil and sunshine everything was good. I've been reading a lot. In the last two months or so, I've re-read the entire Kushiel series (except for the middle part of Kushiel's Scion since that one isn't really all that good anyhow) in preparation for Kushiel's Mercy, which I got from the library and quickly devoured. This week I read Angelina Jolie's Notes From My Travels, which is essentially a publication of the journal she kept when beginning her work with refugees and the United Nations. (I'm particularly interested in Cambodia, and so her impressions of regions she traveled through some 4 years before me were particularly interesting, though the timing of her trip to Pakistan to see and meet Afghan refugees there in August 2001 is perhaps the trip with the most interesting timing.) I'm about halfway through Obama's Audacity of Hope; having read Al Gore's The Assault on Reason in February (which was actually the inspiration for this post, though I did at the time fully intend for a book review to be forthcoming...), I have decided to try to read more, you know, non-fiction. So far the Audacity of Hope is making me realize why so many people seem to be "in love" with Obama—he uses the word "damask" in the second paragraph of chapter 1 ... how can you not love that?! So far the book seems straightforward and honest, but then, I'm pissed off about his FISA vote and the lame-ass excuses he gave over it. I'll still be voting for him, of course—in the last eight years, McCain has gone from interesting to downright frightening—but it is good to stay informed and realistic. I also started reading Daily Kos—a totally unbiased source of information, I know, but what is? and I like the snark—which has managed to make my morning coffee-and-blogs time erm slightly longer. I also finally finished Freakonomics and The Know-It-All in May ... and I've become totally addictd to LibraryThing and its vast cataloguing and statistics-generating power. While visiting my parents, I also helped them scan in a few hundred of their books; why are such things so immensely interesting?!

Oh, yeah, and I guess I've kind of been working. The first few weeks after the beach were rough (there was a dearth of ocean, rum, and soft breezes in my office, and I'd gotten used to the 10 or more hours of sleep a night), but I had a paper accepted for publication around the end of June. I had gotten around a dozen emails about it after it first showed up on astro-ph—many of which were not just asking me to cite some obscure paper of theirs! So I think this is a case where the paper—and the interpretations—did substantially improve between revisions. So now I'm working on the "sequel" paper: paper #1 was on low-mass high-metallicity outliers from the mass–metallicity relation, so paper #2 is going to be on the high-mass low-metallicity outliers. I convinced myself today that the metallicities I'm measuring for this new sample aren't bogus, so now it's time to start compiling all of the data and building an explanation for why these galaxies are the way they are. The current plan is to present the main results at a conference in August so that some of the helpful back-and-forth that happened after the last paper showed up on astro-ph can perhaps happen before the paper is submitted this time.

I've been working on several other things as well, but getting into all of that would mean *gasp* explaining in part what my so-called "thesis" is about, and we wouldn't want to rush back into this relationship too quickly, now would we? Besides, I have a book to go read.

Friday, May 30, 2008

Solving the World's Problems, One Plot at a Time

Whereby "the world," I really just mean mine. Some time ago, I stated that the worst part about being a graduate student (in the astronomy department!) at Ohio State is that our offices get stupidly ridiculously hot for several weeks each year. Apparently our department chair, however, finally got the message across to The Powers That Be that 85° offices are not conducive to productivity, and this year we were spared the fortnight-long saunas.

Well, at least the temperatures were fine during the days, but come weekends, or heaven forbid, after dinnertime, the office temperatures would once again climb. The department secretary, who of course is only in the building during "standard" office hours, tried to assure us that this was because "if the AC breaks over the weekend there isn't anyone around to fix it." Then how come, we wondered, every Monday morning at 9am the AC was so quickly "fixed"? One of my officemates was convinced that the patterns we were observing were due to the AC being simply turned off outside of business hours. So, we started recording the date, time, temperature set, and temperature recorded (by the presumably reliable thermostat):

That little peak on the right there corresponds to Memorial Day weekend. On Monday I was clever enough to leave before the office reached 90 (the thermometer on the thermostat, by the way, maxes out at 85°; someone in another office had a real thermometer and mentioned such numbers the following day). Tuesday morning, the temperature decreased dramatically. We sent this nice little plot to the department chair, who then forwarded on to The Powers That Be, who, we found out this morning, used it to unravel the great "mystery": the air conditioning in this building was being automatically turned off at 5pm and turned back on at 8am—and left off for the entirety of any given weekend. We have been assured that this miscalculation of when astronomers work has been remedied.

Sunday, May 18, 2008

Movie Review: Indiana Jones and the Kingdom of the Crystal Skull

So this afternoon, the significant other and I decided we needed to see a movie. I voted Indiana Jones and the Kingdom of the Crystal Skull. I was told this is not actually out in theaters yet (I don't really follow these things, but I finally saw a trailer for it for the first time last night, which made me want to go see it immediately). So we settled on a 1:50pm showing of Prince Caspian. We get to the theater and pay for our tickets, but my credit card got double charged. So I had to wait at the little desk for a bit to get my card reimbursed. As this is happening, a group of people (carrying legal pads!) comes in, looking mildly confused, and the lady helping me asks, "Indiana Jones?" My head does several 180s; she explains it's a press showing. "I have a blog! I can write a movie review!!" I go join the SO, who is standing in line to buy some popcorn. I do a recap, and a man in the next line over explains to us that it's in Theatre 15, and they aren't asking for credentials, only a name and affiliation. We decide we're too nervous (and maybe too moral) to try for it, and it's about five minutes before Prince Caspian is supposed to start, so no go. Well, actually, Prince Capsian wasn't finished yet, so we went and sat on a bench for a while, whereupon we realized that if we didn't try to see Indiana Jones—it's Indiana Jones !!!—then we would regret it. So we walked over to Theatre 15 with our popcorn and I told them we were from an Ohio State newspaper, and we walked right in.

Now, I promised a review, but, first, there's a slight problem, a dilemma if you will. See, I hate spoilers. I abhor them. I think people who spoil movies or TV shows without fair and ample warning should be drawn and quartered, or at least stripped of their right to enjoy any entertainment ever again. I don't read movie reviews because, if I know I want to see a movie ahead of time, why would I want to know what someone else has to say about it before I go see it?? I'll make up my own mind. And if I don't want to go see a movie, then why the hell would I be caring enough about it to read reviews?? It's just not logical. (And, no, I don't think that the first new Indiana Jones movie in 19 years will qualify for many under the third case of "and if I haven't heard about a film...")

As it happens, however, I happen to be dating someone who, while also having a strong aversion to spoilers, does not hold the same reservations towards movie reviews as I do. So the SO will be doing the actual review:

Indiana Jones and the Kingdom of the Crystal Skull is the first Indiana Jones movie to exist in the history created by the earlier films. I mean, did Indy ever talk about the stuff he'd already done before? The movies are pretty stand alone, right? There is, I believe, one little blink-and-you'll-miss-it reference to Raiders in Last Crusade, but that's it. The Indy we meet here, however, has done everything. He found the Ark of the Covenant. He found the whatever-they're-called stones. He found the Holy Grail. And he's done 20 more years worth of stuff that we didn't get to see. He fought in World War II, one way or another. He's done all this, and he's no longer afraid to talk about it. He's a guy starting to see the end of the tunnel and has learned that he likes telling his lifetime's worth of stories. This is not the Indiana Jones we met before, nor should it be. He's lived 20 more years, grown, maybe even learned a little bit since we saw him last.

This means, of course, that the movie takes place in the 50s, and if you manage to forget this fact, you'll be reminded as the film traverses every archetype (or should I say stereotype?) of the nostalgia decade before the end of the first reel. Shia LaBeouf does a reasonably good job of inhabiting one of those ----types. But not as good as Cate Blanchett, who, in her unending streak of impressing me more than I expect her to, may very well have crafted the best Indiana Jones villain ever from what is really an underwritten role. She's a wonder to behold, and she and her minions never quite manage to fall into the incompetent villain class, despite being constantly outsmarted by the heroes.

Now, I have to say something about the title. When I first heard it, my response was something like "'Crystal skull'? Really? I mean, seriously?" It really didn't seem like a sufficiently substantial object, particularly compared to the Ark or the Grail. But the movie sold me. It totally sold me. I don't want to say how exactly it does this for fear of spoilers, but it does.

My biggest complaint is that the movie sometimes seemed too eager to underdevelop a character or a dramatic situation in order to get back to another in a very long line of witty action sequences. I think that if you go in expecting the Second Coming of Spielberg, you'll be disappointed. This is not really an important film. It won't change the face of cinema as we know it like Raiders did, and it won't take Indiana Jones to a place he's never been before or will again like the Last Crusade did. All it will do is give us a few more events in the unusual life of Henry Jones, Jr. I suspect that nothing that occurs in Indy 4 is really so spectacular for him, which makes this new (older) Indy different, but it is fun to spend a few days walking around underneath his hat again.

Friday, April 25, 2008

An Engineer's Guide to Kitties

To ensure it doesn't get too serious around here, here's some Friday afternoon fun:

Personally, I prefer the phrase "snuggle attack" to "corporal cuddling," though the alliteration in the latter is appealing. And, for the record, δ Carina is about 18 inches by at most 5 inches, for an aspect ratio of about 3.6; this is why she has graduated from "furball" to "furslinky."

Tuesday, April 22, 2008

Paper Summary: Metal-Rich Dwarf Galaxies

Towards the last week of January, when I was hugely absorbed in trying to figure out a thesis proposal thing, a professor came into my office and started talking about the mass–metallicity relation. I knew about it, of course, but here was a new, simple idea: are the extreme outliers from this locus of galaxies real? In the spirit of a short "one month" project, it's now about three months later, and we've "finally" got a paper on said outliers on astro-ph. (I think this is a great example of: if anyone ever offers you a great idea, take it and run with it.)

So to back up a bit. What's this "mass–metallicity relation"? The short version is that a correlation exists between galaxy mass and metallicity such that the more massive a galaxy is, the more likely it is to be "metal rich." Originally this was the luminosity–metallicity relation, since how bright a galaxy is is much easier to measure than how massive it is, so on the right here I've plotted metallicity versus "absolute magnitude" in small grey points for a large sample of star-forming galaxies (remember: magnitudes are silly, so the right-hand side is brighter than the left-hand side, even though the numbers don't increase in that direction). Our outliers are, well, the larger red and green outliers from this relation; the different colors simply denote slightly different ways of selecting different subsamples. Astronomers being astronomers and not material scientists, when we say "metals" what we really mean is "any element which could not have been made in the Big Bang, i.e., basically anything not Hydrogen or Helium (or maybe Lithium but there's so little of that we'll completely ignore it)." There is of course a nice slew of caveats. The first is that the easiest way to measure the metallicity of galaxies is to limit ourselves to star-forming galaxies; all of those nice new young stars heat up the gas around them, and then as this gas cools it gives off emission lines. We can then look at the spectra of these galaxies and by measuring the how how strong various lines are relative to one another and combining it with some black magic (a.k.a. "spectral synthesis codes") we can measure the ratio of oxygen to hydrogen in a star-forming galaxy's gas. So I (and others!) basically use "metallicity" and "oxygen abundance" interchangeably, and, more precisely, I basically always mean "gas phase" abundance.

One of the interesting interchanges between theory and observation is that sometimes there will be some interesting observation (such as the obervation that galaxy mass and metallicity are correlated). So theorists will come up with a bunch of reasons why this is the case, and a few will even attempt to give explanations fo the scatter about the observed relation. A robust theory will also be able to explain seemingly strange galaxies: if a theory is able to explain why low mass galaxies have such low metallicities, then it should also be able to predict in what ways a low mass galaxy with high metallicity is different from its more mundane cousins. I spend a lot of the paper exploring various explanations (and then eliminating them) for why these galaxies could be so "weird," but I eventually hit upon one explanation which, in retrospect, is blindingly obvious.

The idea is that low mass galaxies have low metal abundances because they have low star formation rates and relatively high gas fractions (i.e., the fraction of their mass that is in gas rather than stars is large). An easy way to think of this is like so: stars turn hydrogen and helium into more massive elements (metals). As stars are formed, they the most massive ones die quickly, throwing their metal-rich selves back into the surrounding gas, thereby raising the metallicity of that gas. But a low star formation rate in a high gas fraction environment will not be making enough metals in order to fully pollute the gas around it, and so the fraction of metals in the gas will be relatively low. (This argument only really works for low-mass galaxies, but since those are the ones we're interested in, I'll ignore that subtlety for now.)

So how do you get high-metallicity low-mass galaxies? Well, presumably the galaxy would need either a very high star formation rate (so the massive stars can actually pollute the gas) or a very low gas fraction (so each supernova has a higher impact on the gas). We find that these outliers don't have unusually high star formation rates, so we conclude that they must have rather low gas fractions. But this is the same gas the stars are forming out of! So the star formation must not have very long left to go. A nice bit of supporting evidence for this scenario is the occasional mention in the literature that so-called "transition" dwarf galaxies tend to have low gas masses and higher-than-expected gas-phase metallicities; these galaxies are known as "transition" objects because they are between regular star-forming dwarfs and quiescent non-starforming dwarf galaxies. The especially neat part is that several of these galaxies have the star formation limited to their centers (like this galaxy to the left: blue in a galaxy is a sign of lots of young, recently formed stars). One way to interpret this is that star formation used to occur on all scales in this galaxy, but the gas has since been extinguished (or blown out of the galaxy) at the larger scales.

Sunday, April 20, 2008

Passover

I'm in San Francisco this weekend for my first celebration of Passover. As I've never observed a religious holiday in a purely secular setting (and, no, Christmas doesn't count), this should be fairly fun and educational. Growing up, I always thought Easter and Passover occured around roughly the same time of year, but of course this isn't strictly the case. This year Easter was really early: it falls on the first Sunday after the first full moon after the first day of Spring, which this year all happened to make Easter three days after the Vernal Equinox. And, of course, leave it to an astronomer to explain all of the intricate calendar calculations and relations between Easter, Orthodox Easter, Passover, and Rosh Hoshanah. Basically, the confusing arises when the Vernal Equinox is approximated to be (as opposed to basing these holidays on when the Vernal Equinox actually is).

Wednesday, April 16, 2008

2nd Blogiversary

Today is apparently this blog's 2nd birthday. I'm too out of it right now to do anything special, mostly because I finally submitted the paper I've been working on for the last few months to ApJ (i.e., a journal) and the arXiv (it'll be up Thursday night and I'll probably write something real about it this weekend), and I've still go this "thesis proposal" thing to prepare for Friday. So, in the meantime, here is a word count breakdown of the paper. Your job is to guess the subject matter.

WordCount
the417
galaxy, galaxies164
mass, masses, massive 105
metal, metallicity, metallicities98
sample78
we 76
star, star-forming, stellar75
low59
gas41
correlation, relation39
abundance, abundances37
dwarf30
relative, relatively27
outlier26
oxygen22
less, more22
e.g., i.e., vs.20
seventeen, 1718
therefore, thus, hence17
effective, effectively10
spurious, spuriously6
pathological
2

Monday, April 07, 2008

Definitely a Link Dump

I'm tired, and therefore you're not going to get a real blog post out of me. So here are some interesting and/or funny things I've seen on the internet lately.

Sunday, April 06, 2008

Brunch Review: Spagio's in Columbus, OH

My brother was in town last weekend, and being inspired by my previous two brunch reviews, decided that some "Is it breakfast, or is it lunch?"-y goodness was in order. So last Sunday morning we went over to Spagio's in Grandview, the closest thing I have to a "default" brunch place in Columbus, and this Sunday morning (after visiting for a second weekend in a row!) he has reminded me that I never got around to writing up what I think of brunch at Spagio's.

First off, Spagio's is one of my favorite restaurants in Columbus. It is one of the default places several people in the astronomy department take visitors (colloquium speakers, prospective graduate students, and the like); I unequivocally recommend it for dinner. The restaurant is attached to a decent wine store, so the wine selection is understandably good (and unlike many restaurants, they have a decent list of wines they serve by the glass). The decor is kind of random: there are hammocks hanging from the ceiling (which certainly hundreds of people who have dined there never noticed), random art hanging on the walls (including a weird wooden sculpture of a pig's head and a napkin one of the restaurant's owner's [or the chef's?] friends spilled some wine on and then went to town on turning into Art), and generally just an eclectic collection of decorations which somehow jive together into a neat atmosphere. Pretty much everything I've tried there for dinner I've enjoyed, so it was a natural choice for a first attempt at brunch in Columbus.

So, brunch. Spagio's is a few doors down from Columbus's Stauf's Coffee, and so that is what they serve. Delicious. Unfortunately, this is Ohio, and so no alcohol can be served before 1pm. So much for a bloody Mary for my brother. My normal fare is the croissant French toast with maple cream cheese; oh gods it's so good. Last week I decided to try to jump out of my comfort zone, and I tried the steak and eggs. The steak was fine, but the eggs were kind of flaky and weird and I didn't end up eating them. My brother at least enjoyed his eggs a la maison ("it was food"), but generally I was unimpressed last week. But hey, if someone else is willing to pay for it, I wouldn't turn it down. Just stick to the French toast.

Wednesday, April 02, 2008

Another Peanut Star: This One's Yellow!

This was actually discovered a few months ago, but now there's a press release and even a movie: a peanut-shaped binary star system has been discovered (with the LBT!) in the dwarf galaxy Holmberg IX, a companion to the beautiful spiral galaxy, M81:

And, yes, despite the unfortunate date chosen for the press release, this is a real star, and it is actually exciting. And I take full credit for the term "peanut star." Just please ignore the fact that the movie makes the stars look like they're being externally illuminated instead of, you know, generating their own light.

Friday, March 28, 2008

Proposing a Thesis Thing, Part the First

Sometime in November or December I started writing a blog post (most of which is included in this one, with the tenses slightly changed) on how I have to do a thesis proposal this year and what all that entails. So this is going to be a roughly five month saga compressed into a multi-post few week funfest, seeing as how there's been this Date set for April 18 or somesuch.

As I alluded to at the time, I spent several days just after Thanksgiving at a conference in Tucson. One of the ironic aspects of attending a conference on galaxy and black hole evolution is that I have done very little work which could be construed as directly relating to most of the topics discussed those three days. And yet I kept being drawn to galaxy evolution and I kept saying it is what I want to work on... The idea, I supposed, was to actually get around to doing just that.

See, I was supposed to present a "thesis proposal" in February, as the next step in this whole getting a PhD thing (the previous step being the candidacy exam last summer). (Or so was the case at the time. April is the new February, apparently.) The thought of choosing a thesis topic somewhat terrifies me, mostly because of the stereotype that choosing a thesis topic is equivalent to choosing what I'll be working on for the rest of my life. My aversion to such a decision stems from the same aversion I have to say, traditional marriage: it's not that I can't see myself working on something for the rest of my life, it's that I wouldn't want to work on one thing to the exclusion of all else.

Luckily, real life isn't a pure manifestation of stereotypes, and what a "thesis" (or, more relevantly, a "thesis proposal") should be varies from advisor to advisor. If all goes as planned, I'm essentially halfway through graduate school (or at least I was in December), which means that I will be applying for jobs in (eep!) about a year and a half. My advisor seems to think that the thesis proposal should basically be a default plan for how I am going to write enough interesting papers in that year and a half so that people will want to give me a job. In other words, it's not so much what I will be doing, but what I can do if nothing else more interesting comes along. Yet, despite the seemingly nebulous nature of said proposal, I was still somewhat freaked out over the whole thing back in November. And December. And January. Then in February and March I just kind of ignored the problem, hoping it would go away ...

Monday, March 24, 2008

DoorKitty

δ Carina recently figured out how to get on top of the bathroom door. I haven't seen her actually get onto the door, but she's pretty funny and proud of herself once she's up there. For your lolcat captioning pleasure...:




Sunday, March 23, 2008

Brunch Review: L'Antibes in Columbus, OH

This morning we tried out brunch at the fairly new French restaurant, L'Antibes, in the Short North. We were clever and realized yesterday that today is apparently a holiday on which lots of people like to have brunch out, so we even had reservations this morning. The restaurante is on the small side, but the atmosphere was pleasant and comfortable. The brunch menu price is fixed at $18 per person; this includes drinks (I recommend the orange juice even though it was very pulpy and I do not usually care for pulp; the coffee was also delicious). The meal itself consists for two courses; for the first course the choices are toast with fresh cream, butter, and jam (what I got), a cheese sampler, and a small salad (what the significant other got). For the second course, you have a choice of poached eggs, quiche (my selection), lobster potato gratin (what the SO got), and stuffed French toast. I was pleasantly surprised with the quiche, mostly because I don't think I've ever actually had quiche before; people have the tendancy to fill it up with ingredients I consider nasty. This was just eggs, cheese (asiago and goat), and boar bacon; simple yet light and fluffy and filling. The lobster potato gratin (a soupy mixture with a sunnyside up egg on top) was apparently a disappointment, unremarkable and "not that good" (but the entire thing was eaten).



The CMH Gourmand has also weighed in (despite a sore lack of brunch reviews over there), if you would like a more professional sounding review. The pictures are from a review by the Restaurant Widow; we cleverly forgot to snap some photos ourselves.

Thursday, March 13, 2008

Paper Writing

The Sunday before last, I finally got to the point on my current distraction project where I could begin writing it up as a nice paper. That evening I started coughing, no big deal, but by Monday afternoon I was completely overcome with the flu. As it turned out, over half of the graduate students succumbed to the same flu ... and essentially all of us fell sick within 24 ours of each other. As we explained to the prospective graduate students visiting Thursday and Friday, one of the great things about the department here is the high degree of interconnectivity... so that everyone is put out by the plague simultaneously. So last week became an utter waste, but by Friday I was beginning to feel like myself again. Then between Friday morning and Saturday night, central Ohio was visited by about 20 inches of snow—the most snow in one storm here ever. I managed to dig myself out and get into the office on Sunday. And so for the last few days I've been trying to remember how to write a paper.

The quote of the week, I think, comes from Tuesday when I told a professor (with whom I have co-authored a paper) that I can't remember how to write papers. I said I was in my "wandering the halls" phase. The response? "No, no, you seem to be remembering just fine ... this is how you've done it before, if I recall." I couldn't argue with that.

Then Wednesday morning a link was sent my way, and I had no choice but to rearrange the books on my shelf.I discovered that a large fraction the textbooks I own are black or blue; apparently I am not a mathematician (because, as everyone knows, all math books are yellow). I don't know how long I will be able to keep the books like this; normally I sort by genre and then by size within genre (I think I'd need at least an order of magnitude more books before I considered sorting by author, which is apparently how God intended).

The amazing thing is that I'm actually making vague progress writing the paper; I'm almost finished filling everything in—including figures and tables—so soon I'll officially be at the "revision" stage... when I go back and redo everything so that it is at a quality level where I am not embarrassed to show the manuscript to my coauthors. Whee fun.

Monday, March 03, 2008

A Kitten's Decision Tree

How δ Carina decides whether or not to attack something:
Basically, she wouldn't have attacked Iraq unless she was feeling hyper that day, and I'm not 100% looking forward to flipflop season.

Wednesday, February 27, 2008

Why I Will Be Voting for Barack Obama

Let me preface this with two statements: first, the reason this post is so well-written is because most of it is written by a friend who for various reasons wishes to remain anonymous. Secondly, if in the unfortunate event of the November being Clinton v. McCain, then yes, I will vote for Clinton. As it should be clear to anyone who has attempted to make the Obama v. Clinton decision based on policy alone, the two candidates simply don't differ substantially on the issues, forcing us to make our decision based on other reasons (see the end of this post for a better-phrased rendition of this point).



Practical Reasons Why Barack Obama Should Be the Next President of the United States, and Hillary Clinton Should Not

Much of the media coverage surrounding Barack Obama's campaign for the Democratic presidential nomination has focused on the Illinois senator's theme of "change." While Senator Obama downplays the obvious and awkward race/gender implications, he has deliberately framed the contest as a generational conflict. While a conspiracy to prematurely put the Baby Boomers out to pasture is indeed seductive, it does not earn my vote. Irritating as it may be, there must be substance. So, here are my practical reasons why Barack Obama should be the next president of the United States:

1. "He Has No Experience. Nobody Knows This Guy." That's the Point.

Senator Clinton's most durable and effective jab against Obama's potential as President is that he just does not have the necessary political resume to assume the highest political office in the land. After all, he's only a first-term senator (more on that later). To Obama's supporters, this argument misses the point. They support him because he does not carry forty years of political obligation with him into the Oval Office. He has not spent the greater part of his adult life learning what can't be accomplished on Capitol Hill. The political climate in America is perhaps more polarized and vindictive than it has been since the late 1960s. Hillary Clinton can endure that climate. Barack Obama can change it. It is counterintuitive to argue that a politician whose entire public life is emblematic of the political polarization of a nation is somehow most qualified to unite it.

Perhaps equally importantly, he is not saddled with the cult of hatred that has burdened Hillary Clinton since 1992. Whatever Hillary Clinton would gain as president from her political "experience" would be negated by the fact that so many legislators and citizens would reflexively stonewall her purely by fault of what (they perceive) she is and what (they perceive) she stands for. Is anybody under the impression that another Clinton administration would not be the target of a new generation of Kenneth Starrs and Ralph Reeds? That we wouldn't all have to endure another round of Whitewater and similar absurdities? We would, and it would mean, once again, neglecting the real business of the nation.

2. Now, Let's Discuss Experience...

Hillary Clinton is neither an experienced politician nor an experienced administrator. She has won only two elections, and that only with a massive financial base, almost-universal name recognition and—of course—the strong and vigorous endorsement of an ex-president. The majority of her public life has been spent in the capacity of First Lady, first of Arkansas and then of the United States. Being in close proximity to power is far cry from wielding it, and Mrs. Clinton hopes that the voters will not realize that. She over-estimates and over-represents the breadth of her political experience. Her argument that Mr. Obama is either not electable or not an able politician ignores the fact that he more or less single-handedly built a political base rivaling hers in the past twelve years. He has won more elections than she has with fewer resources. His recent work as a ground-level inner-city community organizer gives him a much better perspective on the realities of race, class and, yes, gender, than does Clinton's work as a prominent corporate nearly attorney thirty years ago.

3. ...And Gender.

Among Hillary Clinton's most reliable supporters has been a demographic of baby-boomer women frustrated at what they perceive as entrenched patriarchy at the highest levels of national power. They lived through and led the women's liberation movements of the sixties and seventies. For them, a second Clinton administration has the potential to complete a feminist narrative that began with suffrage. The problem is the first Clinton administration. It is difficult to understand why a generation that has identified so strongly with the idea of feminine autonomy chooses to champion a woman who spent a quarter century supporting her husband's rise to power. And after her husband fulfilled his every ambition, he allowed her to use his political machine to achieve some of hers. A feminist triumph indeed. References to her long-ago legal career notwithstanding, the majority of Clinton's public life has been spent in the capacity of First Lady. Furthermore, unqualified feminist support for Hillary Clinton assumes that any woman, by virtue of her gender, will be a better advocate for women's issues than any man. If this is indeed why Clinton enjoys such strong support from women of her generation, it is a sad testimonial to the state of contemporary feminist thinking. Modern feminists should consider not only which candidate is most representative of their struggle, but which is most able to build the consensuses and piece together the coalitions necessary to continue real progress towards gender equality in America. Much of America has already decided—by no fault of her own—that Hillary Clinton is a dangerous and radical relic of the more bizarre elements of the women's liberation movement. Barack Obama does not have this image. By virtue of his strong and charismatic masculinity, he will be more able to successfully continue the work to which Senator Clinton's generation is committed.

4. P.S. - The Rest of the World.

No foreseeable political event could redeem America's standing in the world more than Barack Obama taking the oath of office as President of the United States. His election would represent a clean break from the face of America which has earned us such antipathy from enemies and allies alike. Consider his potential for international credibility: the biracial son of a Muslim African, raised in Indonesia, who was a vigorous opponent of the Iraq War from the beginning, could hardly be cast as the Ugly American. He would have a wealth of international political capital completely unavailable to Senators Clinton or McCain, largely because nobody could argue that he doesn't care. His insistence on meeting with problematic world leaders such as Chavez, Ahmadinejad & Co. challenges the dangerous and juvenile American myth that you can make progress with a nation by ignoring it. Furthermore, don't be concerned that a man so liberal will be perceived as a push-over. I doubt his administration will have trouble convincing anybody that a tall black man from inner-city Chicago is aggressive enough.


More than a few political reporters have noted that the two Senators have remarkably similar political platforms. Their observation is accurate. Quibbling on particulars of health care plans aside, there are few glaring political or ideological differences between the two politicians. In very general terms, therefore, it is a contest of both image and leadership. Senator Obama is a bold and capable leader. He is not encumbered by the political baggage or obligations of a quarter-century at the highest levels of American politics. And he represents a vision of America that the rest of the world did—and could—love. Through his political intuition and force of personality, he has the potential to advance a strong progressive agenda at home and abroad. These are my practical reasons why Barack Obama should be the next President of the United States.

Monday, February 25, 2008

Because Political Surveys Are Fun

I'll get into it more later, but I've decided to amp up the political presence on this blog—or, rather, have one. But before I start doing my best to bias your political opinions, here is a survey based about political candidates a reader has asked me to forward along (yes, I took it, and yes, it was fast and painless:

------------------------------

The purpose of this survey is to examine how people think and feel about the political issues, parties, and candidates in the upcoming election. In the survey, you will be asked a series of questions about two political candidates, John McCain and Hillary Clinton. We are very interested in how individuals that find information on the web think about politics, and your participation would be greatly appreciated. In total, the survey should take about 15 minutes to complete. The survey is completely anonymous and you can skip any questions you do not wish to answer.

Click here to take the survey.

Please feel free to contact Chris Weber (crweber@notes.cc.sunysb.edu) at Stony Brook University with any questions or concerns. Thanks for your help!

Sunday, February 24, 2008

Brunch Review: Mahogany Grill in Ithaca, NY

Brunch is arguably the best meal ever invented: more filling and alcoholic than your typical breakfast, more eggy and bacony than your typical lunch, and so slow and lazy you need all the time normally allotted to both. The question then becomes: it's Sunday morning (or afternoon) and you want to settle in for a nice long meal over coffee, omelettes, crab cakes, waffles, Bloody Marys and mimosas.

Whenever I am in Ithaca, the Significant Other and I always go to The Mahagony Grill for Sunday brunch. The Mahogany Grill definitely tops my list of favorite places to go for brunch. It's elegant, yet casual enough that I don't feel odd showing up in jeans. The prices are reasonable, at less than $25 including tax and tip for two people. The food is always good; I almost always get the brandied french toast with cinnamon and nutmeg, but the specials are always delicious as well. The significant other usually gets an omelette or eggs benedict, or perhaps the crab cakes, and today I had one of the specials: a Belgian waffle with Bailey's cream sauce and bananas. And to top it all off is a little-known secret: all entrees served after 12 noon come with complimentary mimosas or champagne.

In other news, I wrote this entire post without functioning 0, ), p, :, ;, or / keys.

Sunday, February 17, 2008

Solar System Analog Revealed by Microlensing

Normally I don't blog about astronomy in the news, usually because it's either boring or poorly spun or everyone else has already done a more thorough job of it than I'd be willing to anyhow. So I'm stunned that even though it was announced three days ago, I have seen no mention on my portion of the blogosphere about the first discovery of a solar system analog—even the Bad Astronomer only mentioned the independently discovered and announced merely Jupiter analog, though the solar system analog is arguably a much bigger deal since it has both roughly Jupiter and Saturn mass planets.

So how was this system found, why is it important—and why do I suddenly care about planets? The last question is easy: the lead author on the paper is Scott Gaudi, a professor here at Ohio State, and in fact much of the modelling and work that went into deciphering the event's lighcurve was done by one of my officemates. I say "event" because these ~0.7 and ~0.3 Jupiter mass planets around a roughly half solar mass star were found via gravitational microlensing; the star system happened to pass immediately in front of another star relative to Earth, thus magnifying the background star. The change in apparent brightness of this background star is affected by how the mass in the lensing star system is arranged, and so a detailed analysis of the lightcurve can reveal planets in the system. (If you want real details, I think the press release does a fairly good job.) What is so exciting about this particular event is that this is the first time there has been a bright enough microlensing event that has been followed closely enough to be sensitive to a Jupiter+Saturn planetary arrangement—which strongly suggests that such systems (such as our own!) are extremely common.

UPDATE (02/19/2008): Apparently I didn't do a very good job explaining why this is exciting. An astronomer asked me:

I'll grant that it's interesting, but is it really unexpected? The first extrasolar planet discovered was potentially exciting. Now, hundreds are known, and it's clear that their discovery is limited only by the amount of time and money devoted to finding them. Extrasolar multiple-planet systems are also known. Or to put it another way, I'd perhaps be more shocked if a Jupiter-Saturn analogue hadn't been discovered after a little more than a decade of finding massive extrasolar planets.
My reply: Surprising depends on who you ask, but while there have been plenty of exoplanets found (and maybe 2 dozen systems with multiple planets), most of them have been close-in planets, so-called "hot Jupiters" ... planets with periods of only a few days, maybe up to several tens of days. Radial velocity studies have only been going on for about ten years now, which is why they are just now (as in, last week) announcing planets in roughly 10-year orbits: they are restricted to monitoring nearly full orbits to be sure what they are detecting is a planet. Microlensing is the only planet-finding techinque that is actually more sensitive to far-out planets than close-in ones (both the radial velocity and the transitting signal are higher for close-in planets), but people haven't been using it to look look for planets as extensively and as long as they have RV and transits. So it is more comforting than "surprising" that we have found a solar system analog: for years the only systems found were crazy things that looked nothing like our own solar system.

Friday, January 25, 2008

LibraryThing

I know this was a fad a few months ago, but I've just joined LibraryThing, home of the ever-brilliant UnSuggester, the lovely piece of science which tells us that people who own Kushiel's Dart are unlikely to own John Calvin's Institutes of the Christian religion.

As it turns out, typing ISBNs into the computer is more fun that it should be, and now that I have run out of books (I apparently own 201, 44 of which live in my office) I feel the need to keep going. I've made sure as many of the books as possible have the correct cover images associated with them, and even put notes on some of the obvious ones.

Fun facts: my library apparently shares two books with Tupac Shakur's and three with Thomas Jefferson's (but none with Amadeus Mozart—his are old and German anyhow). I apparently have three books autographed by the author; in order of date acquired, these would be The Elegant Universe by Brian Greene, I Sold My Soul on eBay by Hemant Mehta, and Harry Potter and the Deathly Hallows by J. K. Rowling. There are only three books which I have in common with only one other LibraryThing member; one of these is a friend who I did not know used LibraryThing but apparently took the same silly French class in college that I did. I would guess now that there are at least half a dozen books which I am the only user who has (somehow I was unsurprised I am a 1905 copy of Lanzo's Applied Mechanics or one of the Thai massage books I bought in Chiang Mai); unfortunately, while I can easily get the number of other users who have a certain book, I cannot sort my entire library by this parameter.

I also apparently have 30 unread books (or, if they are textbooks [which one rarely "reads" cover-to-cover], essentially never-been-used). I find this to be a surprisingly large nmber; I know I have a stack of about half a dozen books in my "to be read" queue (mostly new ones like Freakonomics and The Assault on Reason), but really?? Thirty?! And here I am wanting to go and buy other books? At least this will give me an excuse to start using the date started/date finished cataloging feature LibraryThing provides.

In unrelated-except-that-it's-also-on-the-internet news, I finally uploaded δ Carina to Kittenwar. She has currently won 4 battles and lost 2 ... how could someone not realize she is the cuttest kitty in all of existence?! Silly people.

Tuesday, January 22, 2008

Mystery Hunt 2008 Post Mortem

I spent this past weekend at MIT for Mystery Hunt, and like last year, I was planning on doing an "obligatory hunt post." But this year's hunt, to be blunt, was simply not fun. The puzzles were too hard, required too many leaps in logic to solve, relied too much on flavor text, and often came with a basketfull of extraneous information and red herrings. Hunt started at noon on Friday and by 7pm I was ready to stop ... and it just kept going until 9pm on Sunday (by the time the coin was found, our team was almost completely cleaned out of headquarters, in the middle of a team debriefing, and setting up a dinner mob). I could say more, but since the winning team is known to write a good Hunt (they wrote last year's, for example), and I'm actually not in the mood for a full-fledge rant, I'll share with you this Sesame Street gem that came up in the middle of an "oh my god I'm so sick of trying to solve impossible-to-solve puzzles" conversation Saturday night:

Wednesday, January 16, 2008

Awesome

This paper by Conroy, Wechsler, and Kravtsov has got to have the best footnote I have ever seen. They put forth a straightforward way to model "galaxy clustering through cosmic time," and their model does a surprisingly good job of mathing the data. The text to sum this all up reads: "Overall the agreement is excellent on all scales for all four samples.8"

Footnote reads: "8 Booyah!"

Sunday, January 06, 2008

A Belated iPhone Post

Yesterday marked the end of vacation, complete with the last leg of all-day driving, this time from South Carolina back to Ohio. Hanging out in the car all day can be really boring, especially when preceded by a day of hanging out in the San Francisco airport watching what we were told was the "worst weather in over ten years." So, naturally, I started playing with the (not my) iPhone:

I just learned that I can't upload photos directly from an iphone to blogger. But now we are at a toll plaza in West Virginia. Typing on the iPhone is hard so I don't think I'll finish this post here. Also the road is curvy and Carina wants a belly rub.
Here is said picture of δ Carina sitting on my lap:
The problem with these kinds of "vacations" is that they are not at all relaxing—and yet it is still really hard to even pretend to get work done, so they are just exhausting. I doubt that going to sleep at 8pm the night before returning to the office is a sign of renewed enthusiasm ...

Tuesday, January 01, 2008

The One Thing Humans Can Agree On

New Year's Eve (and Day, I suppose) is my favorite holiday of the year for the reason that it is an entirely human celebration ... there is no "giving thanks" or implicity-but-now-commercialized worship to some deity that most people don't believe in anyhow. It's quite simply a celebration of saying goodbye to the old and hello to the new, an arbitrary reason to try to "start over." But moreso than that, I like New Year's because the time and date is the one thing that we as the human race can actually agree upon. No one right now is actually saying, "no, no, it's really February 17, 2086."

I'd say more, but in five minutes it's going to be 2008 here and then I can go to sleep, so I'll end with the lame question of: can you come up with anything else that everyone agrees upon?