Category Archives: science

Bosonic Taxes?

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So this is one of those “what are the odds?” situations that I seem to have from time to time. It is time to pay my property taxes, and so with the twice annual tears in my eyes I went to the website of the Los Angeles County Treasurer and Tax Collector to hand over the loot electronically. There’s some entering of data to indicate to the site precisely what property is in question, but before proceeding you’re taken to a page with a captcha (Completely Automated Public Turing test to tell Computers and Humans Apart). Here it is (click for larger view.):

property taxes, boson

The random word I had to type was “boson”. Isn’t that odd?!

For those of you who don’t know, this is a term in physics -my field- for particles that […] Click to continue reading this post →

The Flat Universe

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chuck steidelkc coleWhile searching through their site to find something else, I noticed that there was a conversation on KPCC’s Zocalo between science writer K C Cole and Astrophysicist Chuck Steidel not long ago. Have a look at their listing of past conversations here – there’s a lot of good stuff about various topics and people in the Los Angeles area. I listened to it, and it’s very interesting indeed.

It is not quite your usual light touch conversation that you hear on public radio – it is a little more involved, taking you a bit further (without losing you) and gives you more insights into the work, the puzzles, the discoveries and the hopes for future ones. As a journalist, and the guest host of the program, K C Cole knows her material, and so is able to steer things rather well, while inserting useful remarks to help the listener keep up. This might be perfect listening if you want to get a sense of what it’s like to work in Chuck’s area of expertise (finding and characterizing the youngest galaxies and understanding their cosmological implications), either out of general curiosity or if you’re planning a career in that area. Take out some time and have a listen. Here’s the blurb from the site:
[…] Click to continue reading this post →

Möbius Transformations

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This short video is simply lovely. It illustrates (with perfectly chosen music) an important set of mathematical transformations dear to many of us, the Möbius transformations. It is by Douglas Arnold and Jonathan Rogness of the University of Minnesota. It’s a pleasure to watch, whether you work in a mathematically related field or not. Try it:



Also worth looking at (for a host of other reasons) are the comments on the video from […] Click to continue reading this post →

Alexey Zamolodchikov

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alexey zamolodchikovSome weeks ago, I learned that Alexey Zamolodchikov died. Many of you who are theoretical physicists will definitely know the name, as the name Zamolodchikov is all over the fields of statistical physics and integrable systems, conformal field theory, string theory, and Liouville theory, for example: It would be either him, his twin brother Alexander, or both of them that you’ll have certainly encountered on that paper that was crucial to your work in one or several ways. (Photo (2000) by Craig Tracy. I found it here.)

I did not know him personally, and so will not go on at length here, but given how much his contributions have filtered into so much of what I’ve been doing since I was a graduate student (I remember being, as a student far away from the centre of activity in the field, somewhat fascinated with those papers […] Click to continue reading this post →

Antarctic Antics

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Tamsin Grayantarctic research stationsMy Correlations colleague Tamsin Gray has been updating us on her activities down in Antarctica. I still find it remarkable that there are people regularly going down there, doing all sorts of scientific experiments at several stations. Click the map on the right for a larger view of the layout of the many stations down there. Keep an eye out for Tamsin’s posts – not the least because there are occasionally pictures of cute penguins – to get an idea of some of the things her team are up to.

Recently, for example, Tamsin told us about some new (toys) tools they were working with – tiny airplanes! They fly around and do meteorological measurements.

Over on Correlations I did a post about Antarctica that briefly mentioned some of the physics being done there (AMANDA and IceCube, the neutrino telescopes), but the […] Click to continue reading this post →

Stem Cell Timeline

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wisconsin-madison image skin cellsNot surprisingly, there’s been a lot of interesting chatter about the recently announced stem cell research results I blogged about earlier. I did a longer blog post over on Correlations that might interest you (I managed to think of the pun for the title that I knew was in there somewhere, but could not manage it this morning over here).

Mentioned there are two more NPR items I thought were of note: […] Click to continue reading this post →

Stem Cell News

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kyoto nerve cell imageYou may have heard about the new stem cell breakthrough in the news. It seems to be quite significant – researchers (at Kyoto University and at Wisconsin-Madison) have managed to make human skin cells into stem cells (following on work done in mouse some announced some months back). If interested in the details (as I’m sure you are) you can read more about it in an AP story on the NPR web site here. (Yahoo’s version has pictures, such as the nerve cells above left from the Kyoto group. – try and spot the odd one out in their 14 image slide show.)

There was also a very informative chat about it with one of their science correspondents, Joe Palca, on Morning Edition, and you can listen to it here. There’ll […] Click to continue reading this post →

Warped Ambitions?

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Just spotted this in the Guardian:

starship enterprizeNext Thursday, the British Interplanetary Society is bringing together physicists for a conference entitled Faster than Light: Breaking the Interstellar Distance Barrier. “The main purpose is to raise awareness of this obscure field of research within general relativity and quantum field theory and attract new and particularly young researchers to work on the technical problems,” said organiser Kelvin Long.

Wow! I had no idea there was such a meeting. Did anyone reading go?! What is the British Interplanetary Society? From their site I found this quote: […] Click to continue reading this post →

Fourth IPCC Report

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Don’t forget to look at the latest IPCC report released today! Full details including helpful digests and summaries can be found here.

News reports and discussions can be found all over the place.

News reports and discussions can be found all over the place. (Update: there’s an NPR report, with audio, here.) A report on the BBC by Richard Black begins:
[…] Click to continue reading this post →

Climate Matters

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There’s been some really excellent material over on Correlations. I recommend having a look. Among that, there’s been some very interesting posts about climate. The most urgent one is by Sheril, in which she reminds us about the behemoth, Cyclone Sidr, which is bearing down on Bangladesh right now, with potential human cost well beyond that of Katrina. One to watch.

The other posts I wanted to point to is the growing series of posts by Michael about climate science. People largely think of climate science in terms of the global warming arguments, but there’s a lot more to it than that. Michael’s trying to build an […] Click to continue reading this post →

Tales From The Industry XIV – MANswers

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Ok, ok. Since more than a few people have spotted it, I think it is best to (as they used to say in Hill Street Blues back in the 90s) “get out in front of this thing”.

You’ll recall (see list of related posts) many of the good things that I’ve talked about concerning the work various program makers are doing for the History Channel’s The Universe, and KCET is doing for PBS’ WIRED Science, Discovery’s Science Channel, and other science shows I’ve mentioned (and there are more I’ve not yet mentioned). I’ve shared with you some details about some of my own small role in some of these sorts of things so that you can see some of how these programmes come to be, including various shoots I’ve mentioned here and there, various behind-the-scenes activities, and my optimism about what seems to be a general renewed interest by program makers on various channels in making more and better science programs, working more closely with scientists in the process.

From all this you’ll be of the expectation that within a year or two, my dream that everybody on the street will be chatting about science topics/culture just as often as any other topic in our culture might be realized. Well, of course, that’s a bit hasty. The vast majority of stuff out there is just as it always was, and some efforts go rather wrong. Here’s an example:

You’ll remember a couple of fun shoots I did last year. I blogged them here and here. I had high hopes that they’d turn out to be part of something promising. I was (and am) willing to try to bring a little science flavouring to places where it is not normally found, to audiences who don’t normally seek out science programming. Who knows where that can lead? But… the show turned out to be, how shall I put it? Low on science and high on… other stuff, shall we say.

The show I’m talking about is on Spike TV and it is called MANswers. I always knew it was going to be close to the mark, but was willing to take the risk just in case it got a few people thinking about science for a second or two or more. My reasons? No […] Click to continue reading this post →

My Work Here is Done

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lexington visit Yep. All done. Sitting in great cafe with a cup of camomile, listening to one of my favourite Mingus albums on the cafe’s overhead speakers, feeling that it all went well. (The latter – Mingus in a great cafe late at night? – is not really the Kentucky I remember.) I seem to have gone three for three. Class, seminar, colloquium. No disasters, besides skimping on the sleep a bit here and there and writing some of the material at the last minute. Good.

So I gave the seminar at noon, talking about much the same material I did in my Santa Barbara talk I mentioned before here. We then went to lunch at a Korean place nearby that was rather good. I ordered the bi bim bap (as I often do at Korean places) and to my disappointment, it did not come in the super high temperature near-molten […] Click to continue reading this post →