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Gabby Giffords

Gabrielle Giffords, 40-year-old U.S. representative from Arizona, was shot in the head at a public event this morning. Several people were killed, including a nine-year-old girl. Police have a suspect in custody.

[Update: I originally wrote that Giffords had been killed; this was wrong, and I apologize for the misinformation. That’s what NPR and CNN and other outlets were reporting, and I mistakenly assumed that they wouldn’t do so without incontrovertible reason. She is in critical condition following surgery. A doctor at the hospital says he is “optimistic” about a recovery — please please please let this be true.]

I met Gabby at a reception a year ago. She seemed, on our very brief acquaintance, to be a really wonderful person — energetic, smart, full of optimism about doing good things as a member of Congress. Her husband, Mark Kelly, is an astronaut. If I may step away from the ideal of journalistic objectivity for a moment, this is a stupid fucking tragedy.

When a politician is shot, people will draw political conclusions. In this case, Gabby had been “targeted” by her political opponents using explicitly violent language. Sarah Palin released a map with a target site pointing at her district; her opponent had a “shoot an M16” fundraiser. (Via @mattyglesias.) At the time, various people were horrified at the casual invocation of this kind of violent rhetoric. Is it now inappropriate to link that rhetoric to the actual violence? I have no idea whether her killer was politically motivated in any way — he might have just been an unstable person with no agenda at all. Regardless, it would be good to tone down the language of deadly force in political discussions. Maybe both Democrats and Republicans can agree on that.

My heart goes out to her family and friends, as well as those of the other victims. We need more public servants like Gabby Giffords.

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Interview on Static Limit

David Reffkin is a radio host at KUSF in San Francisco. His usual gig is classical music, but once a month he hosts a special called Static Limit where he delves into physics and cosmology. Here’s an interview he did with me a short while back. Right at the beginning we’re talking about this very blog, which I am now using to plug the interview, which is mostly about my book. This is what’s known as “synergy.”

(Those viewing in an RSS reader, you have to visit the page to click the audio link.)

David assumes the listeners have been following along previous shows, so we don’t spend too much time defining general relativity and the Big Bang; we go right for the cutting edge. But we also covered a lot of meta ground, about the process of doing physics. He also gave me the most comprehensive list of errata (mostly minor typos) for my book, so I know he read the whole thing!

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Grumpy Kvetching of the Day

If I ever give up blogging for good, it will be because of comments like this:

I just don’t get it. What a lame blog topic that should have been left on the cutting room floor. There is no science here. Evidently cited just to provide an opportunity to express a personal belief. Why not blog on the news of the day..the successfully trapping the first “anti-atom” and its potential implications? This is real news, real science and in keeping with your expertise. You could teach me something. Instead you give me this?

Obviously the sensible reaction is to laugh and move on, but few of us achieve that level of Zen detachment in dealing with the world. Many of the comments at CV are great, and I’ve certainly learned a lot from the interactions here, but quite a high percentage are of this form. When you put a lot of work into the blog and care about how it turns out, this kind of stuff wears you down. Why are people like this? I understand that not every post will interest every person; is it really more satisfying to take time to lash out in the comment section (when you have never left a constructive comment yet), rather than just skipping to something else on the vast and endlessly amusing internet?

[/grumpy]

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Paperback Day!

Not too early to be drawing up Christmas gift lists, is it? (Or Newton’s birthday gift lists, if that’s how you roll.) Do I have the perfect suggestion for you: a nice copy of From Eternity to Here, undoubtedly the best book about the nature of time written by a Discover blogger this year. And the paperback has just been released today, so you get just as much knowledge for a fraction of the cost! Take your pick from Amazon, Barnes & Noble, Borders, or Indiebound. (But it’s always nice, as an author, to get a big boost in the Amazon rankings. Just saying.)

We should celebrate with a contest or something — I have a few copies of the paperback that could be given away, but no clever ideas to spark a competition. Best short story about the arrow of time? Limericks are out, but perhaps sonnets? Or just for the biggest contributors to our Donors Choose campaign? Suggestions welcome. (Best suggestion for a contest? How deliciously meta.)

At the moment Amazon is offering a bargain price on the hardcover, even cheaper than the paperback (presumably to clear out inventory). They are also pushing their Kindle editions, presumably to help stave off the iPad onslaught. Truth is, there are a lot more books available for Kindle than in the iBooks store, so like many people I read books on my iPad using the Kindle app.

Anyway, Amazon is allowing readers to peruse the first chapters of some of their Kindle books — so here you go! I wish it had been the second chapter, to be honest; that is where we get into some of the mysteries of entropy and the arrow of time. Chapter One is a bit more scene-setting (but it’s a pretty awesome scene).

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John Huchra

jph.2005John Huchra, a leading astronomer at the Harvard-Smithsonian Center for Astrophysics, passed away on Friday. I’m not sure of the cause, but he had been suffering from heart problems; he was 61 years old.

John was most obviously known for his scientific accomplishments, especially as a guiding force behind the CfA Redshift Survey. For you youngsters out there, this project was the pioneering effort at mapping the large-scale structure of the universe. It revealed, to the surprise of many, that there was a lot of structure out there! The iconic image of cosmology in the 1980’s was the “CfA Stickman” reveal in the famous A Slice of the Universe paper by Valerie de Lapparent, Margaret Geller, and Huchra.

CfA Redshift Survey

The stickman was not the universe being playfully anthropomorphic, it was simply the Coma cluster as distorted in redshift space. (You measure positions on the sphere of the sky, but velocities along the line of sight; converting these velocities to distances is inevitably distorted because galaxies in a cluster have peculiar motions inside the cluster.) Before this map was released in 1986, many people assumed that the galaxy distribution would be basically uniform on these scales. They shouldn’t have thought that, in retrospect (you need to go to larger scales before the uniformity becomes apparent), but sometimes it takes real data to get a point across. The survey went on to discover the Great Wall of galaxies, arguably the largest known “object” in the universe.

John had a number of other important contributions, including measurements of the Hubble constant and the discovery of Huchra’s Lens, one of the most dramatic early examples of gravitational lensing. He was also very active in the community, serving as president of the American Astronomical Society and numerous other roles.

But many of us will remember him mostly for his spirit and good humor. When I was a graduate student at CfA, he was one of the most friendly and helpful senior faculty members around, someone you were always happy to bump into in the hallways. There is a guestbook here for people to leave their reminiscences about John; he will be greatly missed.

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Working My Way Back

Okay, I think it’s time to step down from hiatus and get back into this blogging thing. I missed you guys! And I notice that the science blogosphere has completely blown up and re-organized since I left. Which is a good thing.

I don’t like to navel-gaze too much about the act of blogging, but a gradual evolution in my own style was the primary motivation for my hiatus. In the good old days I stuck mostly to very short posts, pointing to this or that and making simple comments without feeling obligated to provide elaborate justifications for every little thing. But over time, I found myself increasingly seeing every post as a multi-layered 3,000 word essay. (Even if they didn’t end up that way in actuality, that’s how they often were in my head.) Not a sustainable model for someone for whom blogging is a hobby, not a vocation. I promised myself long ago that if blogging ever started to take up too much time (roughly, more than 3 hours/week), something would be broken and I’d have to fix it.

So here I am fixing it. I really do very much enjoy the idea of blogging, both exploring ideas for my own sake and the wider conversation with other bloggers and with commenters. But given unitarity constraints on my time and energy, I need to concentrate on punchier posts, and comments that are not fully supported against every possible counter-argument. If the experience of writing a book nudged me toward longer forms, the success of Twitter demonstrates the value of the quick hit & link. Of course I will mix things up, which is part of the fun — longer posts here and there, the occasional video. There may be LOLcats. But I’ll try to refrain from writing poetry.

And now for dessert: chocolate extravaganza from my favorite restaurant, Alinea in Chicago. Ordinarily there are no tablecloths at Alinea, but for this course they cover the table with a thin sheet of silicone and — well, you’ll see.

Some of you might find this presentation too precious and extravagant to be enjoyable. I understand, and I’m sure you’ll appreciate the Oreo Blender Blaster at Denny’s.

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Downshifting

I just counted: this is my 1,540th blog post (counting my youthful efforts at Preposterous Universe.) About two posts every three days, for a bit over six years. Time for a break!

So I’m going on hiatus for a while. While my normal mode of operation is to bounce happily between a dozen different activities, there’s a time for consolidation, and I’d like to concentrate on research for a while. It’s been madcap travel ever since the book came out, which is finally done with, and I look forward to getting back into the groove of solving equations and writing papers.

My hiatus plans aren’t very firm: not sure whether it will be a month or a year. It won’t be permanent, that’s for sure. And I doubt it will even be very doctrinaire; if the mood strikes me, I won’t be reluctant to fire up the old laptop and post something on my beloved Cosmic Variance.

In the meantime, the rest of the crew (not to mention you commenters) will keep the fires burning here at the blog. Maybe I’ll even leave a comment or two if one of those jokers says something totally outrageous. Probably most people won’t even notice I’m gone. (Otherwise I wouldn’t have to announce it, would I?)

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Congratulations to Heywood and Moira!

It’s that time of year again. Young graduate students, having toiled for several years at the feet of Science, are kicked out of the nest to take their places among the ancient and honorable community of scholars. If you will forgive the mixed metaphors.

This week we had a double-decker celebration: both Heywood Tam and Moira Gresham successfully defended their Ph.D. theses. Congratulations to both!

Heywood was stuck with me as an advisor, but he seems to have turned out okay. We worked together on a number of papers that looked into models of Lorentz violation, including issues of extra dimensions and stability. More recently we’ve been finishing a couple of papers on fine-tuning in the early universe — coming soon to a preprint server near you! In the Fall Heywood will leave the dry heat of SoCal for the damp heat of Florida.

Moira’s advisor was Mark Wise, but we also interacted quite a bit. She and I collaborated with Heywood and Tim Dulaney on a couple of aether papers, and she and Tim recently wrote a really interesting paper on anisotropic inflation. But she promises that her next project will be completely Lorentz-invariant. And she’ll be doing it from Ann Arbor, where she’ll be joining the Michigan physics department as a member of the Society of Fellows.

Always bittersweet when students graduate; it will be a loss to Caltech when the leave, but it’s great to see people launch their independent research careers. Best of luck to both Moira and Heywood!

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Report from Colbert

Reporting back from a hotel in midtown Manhattan, having made it through the Colbert Report basically unscathed. In fact the experience was great from beginning to end. Update: here is the clip.

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The Colbert Report Mon – Thurs 11:30pm / 10:30c
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Monday morning I talked on the phone with Emily Lazar, a researcher for the show. I was really impressed right from the start: it was clear that she wanted to make it easy for me to get across some substantive message, within the relatively confining parameters of what is basically a comedy show. From start to finish everyone I dealt with was a consummate pro.

We got picked up at our hotel in a car that brought us to the Colbert studio, and hustled inside under relatively high security — people whispering into lapel microphones that we had arrived and were headed to the green room. Very exciting. The green room was actually green, which is apparently unusual. I got pep talks from a couple of the staff people, who encouraged me to keep things as simple as possible. They made an interesting point about scientists: they make the perfect foils for Stephen’s character, since they actually rely on facts rather than opinions.

colbert

Stephen himself dropped by to say hi, and to explain the philosophy of his character — I suppose there still are people out there who could be guests on the show who haven’t ever actually watched it. Namely, he’s a complete idiot, and it’s my job to educate him. But it’s not my job to be funny — that’s his bailiwick. The guests are encouraged to be friendly and sincere, but not pretend to be comedians.

We got to sit in the audience as the early segments were taped, which were hilarious. I feel bad that my own interview is going to be the low point of the show, laughs-wise. But I went out on cue, and fortunately I wasn’t at all jittery — too much going on to have time to get nervous, I suppose.

I had some planned responses for what I thought were the most obvious questions. Of which, he asked zero. Right off the bat Colbert managed to catch me off guard by asking a much more subtle question than I had anticipated — isn’t the early universe actually very disorderly? That would be true if you ignored gravity, but a big part of my message is that you can’t ignore gravity! The problem was, I had promised myself that I wouldn’t use the word “entropy,” resisting the temptation to lapse into jargon. But he had immediately pinpointed an example where the association of “low entropy” with “orderly” wasn’t a perfect fit. So I had to go back on my pledge and bring up entropy, although I didn’t exactly give a careful definition.

As everyone warned me, the whole interview went by in an absolute flash, although it really lasts about five minutes. There was a fun moment when we agreed that “Wrong Turn Into Yesterday” would make a great title for a progressive-rock album. Overall, I think I could have done a better job at explaining the underlying science, but at least I hope I successfully conveyed the spirit of the endeavor. We’ll have to see how it comes across on TV.

I shouldn’t end without including some good words about the bag of swag. Not only does every guest get a goodie bag that includes a bottle of excellent tequila, it also includes a $100 gift certificate for Donors Choose. How awesome is that?

And as we left the studio, there were some young audience members lurking around hoping for a glimpse of the great man himself. They had to settle for me, but they sheepishly asked if I would pose for a picture with them. Not yet having perfected my diva act, I happily complied. I hope they take away some great memories of the night.

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Delayed But Not Denied

First a programming notice: turns out I will not be on the Colbert Report tonight. Never fear — I was just bumped back to next week, Wednesday March 10 (11:30 p.m., 10:30 Central). Business as usual in TV land, no big deal. I was hoping that I was nudged in favor of a newly medaled Olympic hero, or at least minor royalty, but it looks like tonight’s guest will be Garry Wills. He’s one of my favorite writers, but still. Obviously some Catholic favoritism going on here.

Small scheduling glitches aside, the Colbert Report and the Daily Show remain two of the best places to hear interviews with interesting academics on TV, especially with scientists. In USA Today, Dan Vergano writes about this curious state of affairs. Neil deGrasse Tyson brings up a good point, that Johnny Carson’s version of the Tonight Show used to feature interviews with heavyweights such as Carl Sagan and Margaret Mead. These days, not many non-satirical network news shows bring on scientists (or anthropologists, or for that matter philosophers or English professors) as a regular event.

When Conan O’Brian took over the Tonight Show, the Science and Entertainment Exchange received a request from the producers to suggest some entertaining (and hopefully enlightening) scientists they could consider bringing on as guests. I don’t know if they ever followed up on that idea, and now I guess we’ll never know. Hopefully the success of Stewart and Colbert will convince the networks that Americans don’t necessarily turn the channel when faced with people who think carefully about the universe.

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