Category Archives: science

Absolute Zero and the Conquest of Cold

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Has the ring of a Harry Potter novel’s title, doesn’t it? Well, it’s about physics. The history of the physics of cold, particularly its extremes. It’s a TV show on PBS’ Nova (based on the Tom Shachtman book of the same title), to appear this week, and it looks rather good! You can see the PBS website for it here. The good news is that this program has been a while in the making, with lots of physicists involved behind the scenes to get it right, so I’ve got my fingers crossed that it will not just be entertainment for the moment, but actually a rather good information resource (as well as being entertaining – the two are not mutually exclusive). It first airs on January 8th and 15th (there are two hours, one on each day). There are preview videos to look at […] Click to continue reading this post →

Physics World’s List

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This might be a bit late for some of you, but since it’s rather good I’ll mention it anyway. Recall that I was discussing various “top n of the year” lists that came out in various publications over the last few weeks. Well, I thought that the Physics World one, a list of twelve (one for each month), was rather nice. I saw it only recently*, and […] Click to continue reading this post →

Comets and Meteors for the New Year

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On Space.com, Joe Rao talks about comet Tuttle’s return, and reminds us that comet Holmes (see here and here) is still worth a look. In fact, he gives a little bit of history of Tuttle, which is worth a read.

He also tells us, in another story, about the Quadrantid meteor shower. The what? I hear you cry. Well:

The meteors are named after the obsolete constellation Quadrans Muralis, the Mural or Wall Quadrant (an astronomical instrument), depicted in some 19th-century star atlases roughly midway between the end of the Handle of the Big Dipper and the quadrilateral of stars marking the head of the constellation Draco. (The International Astronomical Union phased out Quadrans Muralis in 1922.)

(Cartoon shaking of fist… “Curse you, IAU!!!”) (Er…. remember Pluto.)

This is not the most well known of meteor showers, but this year it was set to have […] Click to continue reading this post →

Reflection

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It’s time to do that other thing that people do at this time of year: Reflect upon the year that is coming to an end. People start doing highlight programs on the radio and tv, surveying the year of blog posts on blogs, and so forth. Also, various science editors start doing their “top science stories” of the year. They are usually smart enough not to try to rank them, but even so, I do find myself wondering about what makes it to the lists and what does not. I’m particularly curious as to the nature of the discussions that must have taken place in order to compile the list.

Of course, science does not work to a tidy calendar (even though that would be rather nice and neat for our funding agencies), and – more significantly – it is often very hard […] Click to continue reading this post →

Drawing Room

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While I’m on the subject of art and science, I should point out that QMUL’s David Berman told me about an exhibit of drawings by scientists on various themes in physics. He was looking for contributions too (although it may be too late now, I’m not sure). The website is here. He told me a while ago, and I apologize for neglecting to point it out to you sooner (for a while I was sure that I’d done a post on it, but cannot find one).

David said (back in October): […] Click to continue reading this post →

Essence

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Over on Correlations, I posted about the second of the two pieces I was considering as exhibits for some of my thoughts on science and art for Seed magazine. Recall that my first post on this – about the piece and text that I finally submitted for publication – was done a few weeks ago. The theme I brought out there was “transcendence”. For […] Click to continue reading this post →

Mars Attacked?

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A little over a month from now, Mars might be hit by an asteroid! There’s a 1 in 75 chance (due to uncertainties about the exact trajectory), according to the people tracking the object’s progress right now. The 50 metre wide object is due to pass within 300000 miles of Mars at about 6 a.m. EST (3 a.m. PST) on Jan. 30, 2008. Quoting quite a bit from the press release from JPL/NASA: […] Click to continue reading this post →

NSBP and NSHP

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nsbp and nshp conference logoI learned from Chanda Prescod-Weinstein* (an occasional commenter here) that it is time to register for the joint NSBP and NSHP (National Society of Black Physicists and National Society of Hispanic Physicists) conference. It’ll be in Washington DC, February 20th-24th. (Actually, it has been time to register, for some time, but I’m late to the party, as usual.)

Chanda’s been working on some of the organization, and she says on her blog (go there for more):

This year’s conference will feature a plenary on Cosmology and Quantum Gravity, organized by Chanda Prescod-Weinstein and starring Abhay Ashtekar (Penn State), Lenny Susskind (Stanford), and Meg Urry (Yale).

[…] Click to continue reading this post →

Transcendence

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seed december 2007 coverI noticed last week that the December issue of the magazine Seed has the short piece I mentioned I was working on a while back. I actually completely forgot about it, and just looked at it on the newsstand on the off-chance, and there it was. It is part of a larger cover story by Jonah Lehrer about science and art (which I’ve not yet read), with a number of other scientists giving their take. I was asked to contribute by picking a piece of art, and writing 100 (they said) words about how it connects to my science, Or I could talk about how a piece might have inspired me, or some combination of those sorts of things showing the intersection between science and art. It took me a while to come up with a short answer to this many-faceted and interesting issue. I actually did two completely separate pieces, before later focusing on one and polishing up the words for the magazine. and I’ll put the latter here (below), and later in the week the other will appear (probably over on Correlations). I’ll use the text I have here as I submitted it… I have not checked to see if it is identical to what appeared in the magazine yet. Go along and look at the magazine for the contributions from others. It is very interesting to see what pieces people chose, and why. What would you choose?

Tell us in the comments.

My choice:

Leonardo da Vinci, Study for the Virgin of the Rocks, c. 1485

Leonardo da Vinci, Study for the Virgin of the Rocks, c. 1485 (Click for larger view.)

Leonardo da Vinci’s pencil study stunningly illustrates for me the key parallel […]

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Categorically Not! – Beginnings

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Bob Miller at Categorically Not!The next Categorically Not! is on Sunday December 16th (upcoming). The Categorically Not! series of events that are held at the Santa Monica Art Studios, (with occasional exceptions). It’s a series – started and run by science writer K. C. Cole – of fun and informative conversations deliberately ignoring the traditional boundaries between art, science, humanities, and other subjects. I strongly encourage you to come to them if you’re in the area.

Here is the website that describes past ones, and upcoming ones. See also the links at the end of the post for some announcements and descriptions (and even video) of previous events. (Above right: The artist Bob Miller speaking at the event entitled “Really?” on 23rd April, 2006. He died recently on Oct. 28th 2007, and this week’s event is dedicated to him.)

The theme this month is Beginnings. Here’s the description from K C Cole:

Every thing (and every body) began sometime. Even matter, space and time have a history. So do music, religion and galaxies (and along with them, musicians, religious scholars and astronomers.) Of course, how things begin determines to a large extent how they evolve and go on to influence both human culture and the universe at large. So for this month’s Categorically Not, we’ll look at beginnings from three widely (and somewhat wildly) diverse perspectives.

categorically not! Beginnings Speakers

[…] Click to continue reading this post →

Gell-Mann on Fundamental Law

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Got fifteen minutes? Murray Gell-Mann spoke at TED this year. For a fifteen minute talk, he really crammed in the essentials, and with good humour too. His subject? What we do in the search for the fundamental laws of nature, why we do it, and some of the key things that make it possible: Symmetry and beauty, and nature’s tendency to re-use a good idea again and again.

Insiders, outsiders, newcomers alike, I recommend having a look at the video. While I think he overemphasizes the beauty-over-experiment point a little bit at the beginning in a way that might be a bit misleading (Einstein and some others can get away with it, but not most of us), it’s a gem of a talk – great to see one of the legendary masters in action, at a widely accessible level:

murray gell-mann at TED […] Click to continue reading this post →

Political Science

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Ok, a sidestep into politics for a short, but important moment.

With all that’s going on with all the presidential debates and press conferences and other appearances, has anything struck you as a major topic (or class of topics) that is simply missing from the national discussion? A topic that affects our lives in so many ways, and helps shape our futures in a most profound manner?

I’m thinking of science. I’m thinking of it in all the forms in which it intersects with politics – where decisions made by the president involve policy directly related to science (climate change and stem cell research are two of the most obvious), scientific research (both basic and applied), safety and security issues (consider the EPA, Katrina and other natural disasters), resources (the ongoing and coming battles about water sources, for example, pollution and air quality go here too, as well as under other headings), and energy (well, take your pick of example issues there). There’s also science education, on which there ought to be coherent effort for many reasons […] Click to continue reading this post →

Odd Direction For Compass

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AlethiometerOn Friday after a very busy week (the last teaching week of the semester), I decided to go to a 21+ screening at the Arclight. This splendid event is held in a special part of the Arclight complex which means that you can buy a cocktail (gin and tonic in my case, made with Tanqueray No. Ten) and wander into the movie theatre with it and relax in a comfy chair and watch a movie for two hours.

Hmm… Sounds good. Was good. Why don’t I do this every Friday?

What I saw was about multiple universes and particle physics. Oh, and fighting polar bears. […] Click to continue reading this post →