Category Archives: work

Uses For Strings?

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viscosity_scatterThere were a couple of string theory stories in New Scientist last week. I forgot to mention them earlier. One is entitled “What string theory is really good for”, by Jessica Griggs. The other is entitled “Why cats fail to grasp string theory”, by Ewen Callaway.

Well, since cats are involved, of course I’m going to start with an extract from the second (even though it is obvious that the cats are deliberately skewing the results):

[…] Osthaus’s team attached fish or biscuit treats to one end of a string. A plastic screen with a small gap at the bottom separated cats from their reward, requiring the felines to tug on the string to get the treat.

With a single string attached to the food, most cats learned to paw at the string to get a snack. But when Osthaus’ team introduced a second piece of string, […]

Well, that was to pique your interest. You’ll have to go off to the source article to get to grips of this second piece of stringy research. The first article? It’s a discussion of […] Click to continue reading this post →

An Odd Time

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watchWell, it was an unusual day here in Aspen. It was a day with lots of talks. Six of them, I think. There were four workshop talks scheduled for the morning, each of half an hour I think. Also got into a discussion before the sessions began, helping to explain how gauge/gravity duals work to a condensed matter colleague. I checked a voicemail message (only a relatively limited set of people have my number and so I figured it was a call to which I’d want to respond) and, despite the fact that I’m in retreat mode and would normally ignore it, returned the call. It was an office at USC wanting to put me in touch with a journalist who needed help. From Esquire. No, it is not what you think. I suggested they can could call me at 13:05, and at 10:30 went to the talks.

Somehow, successive speakers kept running over time due to lots of (actually, pretty interesting) interruptions and discussions, so I did not mind that we got to 12:50, and my talk, which was scheduled for 12:00-12:30, had not happened yet. With […] Click to continue reading this post →

Ink Time…

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ink_break_aspenAh, time to relax a bit after a somewhat busy last couple of days glued to the notebook and computer. The results? (1) A hasty colloquium to an audience of mixed expertise to try to get across a sense of why some of us are excited about various applications of string theory to a diverse range of physics including ongoing experiments in nuclear physics and condensed matter physics (the person who was going to do it was a bit ill apparently so I stepped in with some hastily prepared slides… a bit messy but hopefully some use)… (2) Two papers with my student Tameem on applications of string theory techniques to superconductivity (one will appear on the ArXiv in about 20 minutes if you are interested [update: it is here.])… (3) Notes for a talk I’ll give on Thursday about said new results… (4) Several discussions with and ideas sent to some documentary film makers about some new TV shows coming up – Season 4 of The Universe! Seems I’ll get involved in some of them (stay tuned)…

So this morning I went to sit and cool down a bit at a cafe I like to visit a lot when in Aspen. Ink Coffee. Ok, I see that I did not yet mention I was in Aspen. Have been for […] Click to continue reading this post →

LHC News

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lhc_and_mont_blancJester at Resonaances reports on a talk by Jörg Wenninger about the progress at the Large Hadron Collider (LHC).

There’s information about the repairs, more thoughts about the accident last year, and somewhat frightening news about issues of quality control on some of the manufacturing of crucial parts that may haunt the entire project for some time to come. […] Click to continue reading this post →

Remind Me Not To Do This Again…

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film_notesI’ve just finished two days of staring for long stretches at the computer screen, reviewing all my footage for the films, (see also here) making careful notes about which takes I like, which I don’t, which are salvageable, which are a total mess, suggestions for cut away shots, transitions, other edits, etc, etc, etc… These notes are for my film editor, who will now take the hard drive of all the footage to begin cutting the first rough versions of the films.

It was a time-consuming process, with the additional complication from the fact that the Industry is in some disarray when it comes to high definition (HD) formats. Largely due to the explosion of technology, the move to, and the demand for the format from the consumer TV world, there is no universal standard for how different camera manufacturers (and even the different models of a given manufacturer) save the files they make, and for how to get those files safely and reliably off the camera and on to your computer in a way that allows you to view them. Different flavours of […] Click to continue reading this post →

Fair Play

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Yesterday saw my annual stint of judging at the California State Science Fair. Somehow it managed to sneak up on me this year, and so I did not get to do what I planned to do, which is encourage one or two scientist/engineer friends of mine in the area to sign up to get involved, since it is such fun and quite rewarding (ahem: Michelle P., Amy M., mark your calendars for next year! I’m going to come a-calling…) See earlier posts (e.g., here, here) for science fair descriptions, and the fair’s own site with lots of photos each year is here.

(Ok, there’s the whole getting up in time to arrive there by 7:00am or so. That bit is less than good, perhaps.) I arrived a bit later than 7:00, due to some breakfast procrastination that science_center_parkingI somehow sometimes manage to do even when I wake up with plenty of time (a whole hour this time) to get ready. My plan to simply set out by 6:10am and pleasantly walk/bike and bus down (my usual mode) was thwarted by this and so I had to take a somewhat quicker mode of transport, launching out of the batcave in a hurry at 6:50am! By 7:15am the parents and students in their SUVs and minivans were arriving at the California Science Center in droves, and so this meant that parking was a bit more of a challenge that it would have been 15 minutes earlier. But as you can perhaps see on the right (click for larger view), it all worked out in the end… ( 🙂 )

Here’s a shot of the annual morning briefing of the volunteer judges (all well fed, […] Click to continue reading this post →

The Big Day!

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Herschel & Planck Ariane 5 ECA V188 Launch CampaignTomorrow is the Big Day. For what? The launch of Planck and Herschel – Major new windows on our universe. Keep your fingers crossed for luck!

They’re on the launch pad right now. See here.

So, what are the missions and objectives of these fine spacecraft, I hear you ask.

Well, from the Planck site: […] Click to continue reading this post →

Professors Do It Too

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Remember a couple of weeks ago I was mentioning an outbreak of schoolboy(-like) giggles from my physics 408b class due (it turns out, if you did the homework on the equation) to some audience-perceived off-colour hidden joke in some of the material I was presenting? (I’m still a bit embarrassed since I had no intention of making the joke they saw.) Well, just a couple of days later, I was witness to it again, but this time it was in a lecture by someone else, and the audience was mostly professors, and it was one of my esteemed colleagues who couldn’t help himself and broke out giggling. Well, actually, there was a short loud guffaw which burst out. So you see, even the fine upstanding citizens can submit to juvenile giggles.

Let me tell the story. We had the eminent evolutionary biologist Patricia Gowaty (UCLA) give an excellent talk entitled “Darwin and Gender”, as part of the College […] Click to continue reading this post →

Unintended Giggles

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Quick question:

So, has anyone else, while teaching a class, heard a breakout of schoolboy giggles behind them upon sketching the typical shape of the spatial intensity of the synchrotron radiation from a charged particle? You know, this:
[…]

As soon as I drew it and heard the giggles I knew what they were getting at. I had not anticipated it at all. It did not help that I drew it in the more exaggerated fashion that […] Click to continue reading this post →

Making Movies, 2

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still_from_shoot_5_smallReally, I suppose this should be entitled “Making Movies, 1”, but I think that the earlier post “Call Me Cecil…” is morally the post of that title. Several days of insanity later (from worrying more about insurance, to locking in locations, worrying we would not get the HD cameras in time, trying to find a PA for the shoot, negotiating with various parties here and there about various things – in between the usual activities of physics professoring), the first big shoot day came. That was yesterday.

It was a day with record (for the date) heat (90+, in F), which was not helpful, but overall it was fun. On Thursday, in my location scout mode, I was to be found popping over once every hour or so to a particular location on campus and taking a snapshot. Why? I wanted to see where the sun would be at what time, so that we could figure out exactly when we could use the location, and for what shots. The sun […] Click to continue reading this post →

Call Me Cecil…

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…Well, just for a 24 hour period or so.

Why? Well, it’s just that one of the many projects I’ve not yet had time to report to you about is inching along, growing ever more involved, has been sucking up a huge amount of time recently, and is going to go really large this week.

What’s “going large”?

Ok, here goes. I’ve been taking a turn at being a filmmaker, on and off, for over a year now. I hope that the products of this will be coming to a theatre near you one day soon (probably your computer), but let’s not get ahead of ourselves. What is it? Much more later, but I’ll just say now that it’s got science, and it is educational and – I hope – fun.

So far, what have I been doing? Writing a script, sketching storyboards, waving my arms about trying to explain the concept to actual filmmakers (you know, ones who […] Click to continue reading this post →

Pit Visit

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I promised a report on last week’s College Commons trip to the Page Museum at the Tar Pits, here in Los Angeles. It was an excellent trip. The usual thing I do for blogging these things is, some time later, as time allows, I sit down and do a sort of brain-dump. I tried to do something different this time, and walk on the tour with my Palm Tungsten (yes, really really old technology, I know) and simply write a sort of narrative into it as I went along. Then I combined the uploaded file with the images I took as I went along, and supplemented with some extra sentences here and there. The overall effect should be a sketchier description of the event than I usually do, which may or may not be an improvement given that everybody seems to skim everything these days anyway. (Click on the photos for larger views.) So, here goes:

tar_pits_trip And so it begins. And it begins well – after a name tag is given out, upon check in for the bus, we are given a little brown paper bag of snacks. Hurrah!

3:39 and we’re off! (We run by the excavations for the Expo line and since it is an elevated bus, I get a nice view of what’s going on for quite a way. Wish I’d had the camera out to make a video for you.)

My colleague David Bottjer, a paleontologist, gives a little run down of the history of the region (both social and paleontological) as we go north on La Brea (appropriately – they are the La Brea Tar Pits… Or given that La Brea means The Tar, they are The Tar Tar Pits…)

4:05 We’re here! Somehow, the little bag of goodies is all empty already. Except for […] Click to continue reading this post →

Pit Stop

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saber toothed catI’m going to another interesting College Commons event today. It’s an away mission. We’re off on a specially arranged tour of the La Brea Tar Pits! This is part of the 1859 celebration series, and of course Darwin is the focus here to some extent. We’re going to be taken around the famous Pit 91. I shall try to take some pictures and report later. The image on the left is a painting of the saber toothed cat, by John C. Dawson. (It is in the LA Natural History Museum.) (By the way – yes, the “Los Angeles 20059 B.C.” on […] Click to continue reading this post →

The Spiritual Life of Plants

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cvj sowing seedsGiven all the gardening I’ve been doing over the last week or so (there’s some seed-sowing action going on to the right – more later), it may be fitting to go and sit and participate in the event coming up today. It is another of the College Commons events I’ve been mentioning here.

It’ll be a round table discussion and workshop to kick off a series, and here’s the summary:

“The Spiritual Life of Plants” series, arranged by Natania Meeker and Antónia Szabari of French and comparative literature, aims to reunite urgent contemporary conversations around ecology and the built environment with an early modern past — a past in which plants existed both at the limits of being and at the frontier of new forms of knowledge. What might these animated plants have to tell us about the ways in which humans experience, regulate, and are transformed by the non-human beings that surround them? How can we carry these conversations forward into the present and the future?

[…] Click to continue reading this post →