Category Archives: work

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 →

Waiting for Stephen

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Well, the last couple of days events were tiring, but good overall. The Hawking event was a bit like a rock concert. I made a video of some of the long line for you, and also take you into Bovard Auditorium with me to see the rather nicely packed crowd (well the downstairs part) of about 1200 excited audience members. At the end of the video are a few stills, showing Dean Howard Gillman during his welcoming remarks to the College Commons event, Nick Warner introducing Stephen Hawking, the man himself, and some of the high school students and the undergraduate student, who won the prize to get to ask Stephen questions. (The high school students had all asked similar questions, and so were all asked up to ask one question.)

Here’s the video: […] Click to continue reading this post →

Hawking Talking, and More

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Gosh, time flies!

I almost did not get to announce this before it was upon us. Tomorrow and the day after combine into a notable event in the College Commons series here at USC. Some of us have been working on this for quite a while. On Tuesday we have Stephen Hawking giving a big public lecture entitled “Out of a Black Hole”. Here’s the announcement. Note that general tickets for seats in Bovard Auditorium all went within hours of us releasing the tickets several weeks ago, but there is room in the two spill rooms that we have set up where there will be screens relaying the talk. Make a bit of an event of it and go with friends! [Update: I forgot to mention that we had a competition in local high schools and also at USC where the prize was to ask Stephen Hawking a question. People submitted questions over the last few weeks and we selected some of the best. There will be three undergraduates and three high school students coming up from the audience (we’ve a lot of high school students visiting us for the talk) to ask him a question each at the end. Should be fun.]

The day after, there will be a related event. Some of us from the physics department […] Click to continue reading this post →

Expensive

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One of the things I am most appallingly tardy about is filing expense claims. I’m really bad about this. Not just in terms of the amount of time it takes me to get to it, but in the actual amounts that need to be claimed. People who are smart about this take less time to file their largest expenses… it is usually the opposite with me. I know people who are essentially doing their expenses as the trip they are on proceeds, and by time they’ve landed back at their home city they are putting the completed forms and bundled receipts into the mail (internal or external) with one hand while still holding their luggage in the other. I on the other hand, find myself forgetting to do it again and again, losing track of what I actually spent and can claim back, and so on and so forth as the trip fades from memory. Yes, I have forgotten to claim for entire trips, in the past, remembering years later that I was supposed to (happily that has not happened too many times). I’m not sure why this is, but it is partly as a result of the immediate re-immersion back into local life after the trip. The trip is done and now I’m back to the everyday routine. Figuring out the expenses becomes a sort of distraction from moving forward. Or it just keeps slipping my mind.

It’s pretty stupid of me, and I acknowledge it every time, but I still end up doing it. Sometimes at great cost. Right now, I have four big trips I have not claimed my […] Click to continue reading this post →

Twirling, Twirling, Twirling…

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Oh, yes, the midterm. Well, apparently the students don’t hate me as a result of it. (Actually I have not seen any of them since before the midterm (I was away during the actual midterm itself), so I’m not entirely sure about that…)

notebook and coffeeI stayed up until 2:00am or so on Wednesday writing and typesetting the thing, and in the end I think I set a relatively straightforward exam. Furthermore, after I finished writing it, I realized that a good chunk of the computation I’d prepared for them had already been done in a previous midterm. I’d completely forgotten. You can see a (bit blurry, sorry – in a cafe trying not too look too conspicuous taking photos) snap of my notebook with the computations that I did in preparation for the midterm in the little photo to the right.

Since Elliot asked (thanks!), I’ll say a bit more about what they had to do. I decided to […] Click to continue reading this post →

Midterm One

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electrodynamics midterm preparationWell, it is that time again. The first midterm exam for my electrodynamics course is scheduled for Thursday and I have to decide today what to put on it.

A key factor is that it is an open book exam. Last week I explained to the class (I have another excellent group this year) that an open book exam is in fact more challenging than a closed book one, since some of them seemed to be under the opposite impression.

The point is that since we all know that if they have the textbook and their class notes and so can look things up, I certainly can’t ask them anything that they can lift from those sources without thinking. Therefore I will be able to focus on testing their ability to think and apply the techniques that they have been (I hope) studying. This is, after all, the point of the exercise, isn’t it? More so than remembering equations, in any case. (Although one hopes that all physics students can remember Maxwell’s equations…)

The drawback to all of this is that I myself have to think harder in preparing the […] Click to continue reading this post →

Some Articles

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Well, as I mentioned in the last post, Sunday’s symposium at the AAAS meeting in Chicago went very well, and we successfully communicated a lot of the physics results, ideas, and excitement to the audience. One of the team, Peter Steinberg, did a blog post, and he’s also got some more pictures that you’d perhaps like to see.

Some of the journalists who were there have already produced some pieces reporting on the physics. It is actually interesting to see all their different takes on the same presentation and discussion event. So far, I’ve seen the one by Glennda Chui at Symmetry Breaking, which had the mixed blessing of being tagged by Digg (the server was down for hours as a result!), one at Physics World by Margaret Harris (this one sort of missed the key physics point a bit – see below), one at the Discovery Space Blog by Dave Mosher, and one by John Timmer at Ars Technica (He misquotes me a little here and there, but I do like the “String Theory Officially Useful” phrase in the title!). [Update: There’s also an AAAS publication here.]

Anyway, as I said, I think that the Physics Today one sort of got sidetracked a touch and so I placed a comment there to clarify some points. I realized that they might be useful to some reading here, and so I reproduce it here. Enjoy: […] Click to continue reading this post →

24 – Physics Edition (Day Two)

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February 14th 2009: Valentine's Day.

9:00pm – 10:00pm

…Must be here somewhere. Maybe inside the monolith? No. Seems it is not inside the jumbo suitcase, which I have not used since Aspen last year anyway, and I’m pretty sure that I did not use it on that trip. Where can it be? That box over there? No. (But I found that bag of plastic book covers that I’ve been using sparingly since I left Preston for London in 1986. Excellent. The things I don’t throw away…) Well, never mind, would be silly to make myself miss a flight over an inflatable pillow that I have not seen in over a year. If I play my cards right, I won’t need it anyway….

9:10pm Now to put all those things I set aside earlier into my trusty little day trip bag. Change of clothes, electric shaver, toothbrush and so forth. I suppose I will bring the laptop. And some bits of equipment that might be useful as backup for Peter’s plan. Or whatever. You never know. Yes, I throw in my copy of Accordion Crimes. Almost finished it, and if I do, would be good to get another Annie Proulx to continue enjoying her wonderful writing…

9:17pm Will someone tell me how I managed to be perfectly on time, and then fritter away some of it to make sure I’m slightly panicky late again? Sigh. I was more or less ready at 9:00, when I should have left. Despite all the events of the previous 24 hours ((Day One) – Valentine’s Day Diary – Available on DVD) I got everything together on time, and wouldn’t it be rich if I missed the flight?

9:23pm I leave finally, using the batcave, slowing to check that entrance closes, then vanish into the night toward the airport. Saturday night late in LA. Surely everyone is out having awkward dates? The roads will be clear this late on a Saturday night, right? I can make my 10:07 check-in cutoff, I’m sure.

9:33pm. 101 Freeway. Full of traffic. Don’t you people have dates you’re supposed to be on!!?? This is my road! My! Road! […] Click to continue reading this post →

Sketching

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sketching for an articleThe things I do for a living. Or whatever.

You see me at the end of a two hour process of watching some YouTube videos of a sport, thinking, reflecting, doing some analysis, and then (pictured) working up some sketches of some of the physics going on.

This is for a magazine doing a piece on various techniques in this sport (which I won’t mention since I don’t know if they want their thunder stolen). I’ve no idea whether they’ll use it in the end, but they needed the help pretty fast, and how could I say no? […] Click to continue reading this post →

So What Is String Theory, Anyway?

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The usual answer you’ll get from the person on the street (as it were) includes lots of nice words about wiggling strings that look like particles, and so forth, and that’s fine. However, the [informed] next level answer, when you’ve worked enough in the field, is that we don’t know. I’ve told you why (at least in part) in previous posts and so I’ll let you read them. We’re still working on it.

While we work, we’ve learned that it is a quite marvellous thing (from the bits of it we’ve come to grips with) that is teaching us a lot about all kinds of physics, and mathematics too. Some of this may be good for describing things about Nature, and we’re still working out lots of that (although see some of the exciting things I’ve been talking about in my previous post and the links therein).

So what do we put on the T-shirt? (You know, the analogue of Maxwell’s equations for electromagnetism – light, etc – that every physics undergrad likes to have on their T-shirt). Well, we don’t know yet.

polchinski what is string theory

But that’s all my opinion. Every now and again it is good to hear from one of the masters about what they think of string theory*, and what it is and so forth. Happily, Joe Polchinski has been known to agree to stand up and give an exposition on this […] Click to continue reading this post →

Brainstorming

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presentation preparation in the sunI had quite a marvellous brainstorming session today. You’ll recall I was preparing a presentation for the February 15th symposium at the AAAS meeting the other day. Well, all of us concerned (the four of us presenting as well as various Brookhaven staff who will take part in the symposium discussion as well) got together over the phone for a teleconference today. It took almost three hours (but happily I was sitting in the sunshine while doing it, as you can see). We wanted to chat about the distribution of ideas and results that will be presented.

There are four of us presenting at the event, with only a short time each to get across some of the key ideas and so we need to make sure that we don’t do too much […] Click to continue reading this post →