a geocentric view

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

2008-07-11T22:20:00.000-04:00

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.

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

2008-05-30T14:45:00.001-04:00

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.

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

2008-05-18T17:40:00.002-04:00

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.

An Engineer's Guide to Kitties

2008-04-25T14:06:00.002-04:00

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."

Paper Summary: Metal-Rich Dwarf Galaxies

2008-04-22T12:50:00.000-04:00

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.

Passover

2008-04-20T14:48:00.002-04:00

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).

2nd Blogiversary

2008-04-16T18:41:00.001-04:00

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.

Word	Count
the	417
galaxy, galaxies	164
mass, masses, massive	105
metal, metallicity, metallicities	98
sample	78
we	76
star, star-forming, stellar	75
low	59
gas	41
correlation, relation	39
abundance, abundances	37
dwarf	30
relative, relatively	27
outlier	26
oxygen	22
less, more	22
e.g., i.e., vs.	20
seventeen, 17	18
therefore, thus, hence	17
effective, effectively	10
spurious, spuriously	6
pathological	2

Definitely a Link Dump

2008-04-07T20:59:00.001-04:00

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.

Class and National Service as well as Social Class and Educational Access tackled at Uncertain Principles

And then there's Sean at Cosmic Variance discussing even more evidence for why funding and curriculum standards for public schools should be nationalized.

From Freshome we have a house that looks like a toilet and a sideboard with a glowy full moon

Are Homophobes Aroused by Homoeroticism? from Dispatches from the Culture Wars

a funny kitty:

A delightful discussion of typography and political campaigns, via Deadly Mantis

Hat tip to Blake for pointing me to the Relativity Song from everyone's favorite Max Tegmark and 8.033:

And finally, via the Friendly Atheist, a nice explanation of how Jesus and Tetris are really the same thing.

Brunch Review: Spagio's in Columbus, OH

2008-04-06T11:17:00.000-04:00

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.

Another Peanut Star: This One's Yellow!

2008-04-02T10:26:00.001-04:00

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.

Proposing a Thesis Thing, Part the First

2008-03-28T20:25:00.000-04:00

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 ...

DoorKitty

2008-03-24T21:05:00.000-04:00

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...:

Brunch Review: L'Antibes in Columbus, OH

2008-03-23T14:05:00.001-04:00

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.

The Subprime Primer

2008-03-17T18:04:00.000-04:00

Your questions (and mine) about the subprime mortgage crisis answered...

Paper Writing

2008-03-13T11:56:00.001-04:00

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.

A Kitten's Decision Tree

2008-03-03T14:28:00.002-05:00

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.

Why I Will Be Voting for Barack Obama

2008-02-27T20:17:00.000-05:00

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.

Because Political Surveys Are Fun

2008-02-25T19:46:00.000-05:00

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:

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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!

Brunch Review: Mahogany Grill in Ithaca, NY

2008-02-24T16:02:00.000-05:00

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.

Solar System Analog Revealed by Microlensing

2008-02-17T21:47:00.001-05:00

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.

LibraryThing

2008-01-25T22:04:00.000-05:00

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.

Mystery Hunt 2008 Post Mortem

2008-01-22T20:46:00.000-05:00

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:

Awesome

2008-01-16T14:05:00.000-05:00

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!"

A Belated iPhone Post

2008-01-06T19:47:00.000-05:00

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 ...

The One Thing Humans Can Agree On

2008-01-01T02:56:00.000-05:00

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?