Category Archives: science

Wet Moon

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Aha! So you were thinking the mission last month was a bit of a failure, right? Because there was no big splash (literally) of a plume for the press to gush about? I’m talking about the October LCROSS mission on October 9th that smashed an impactor onto the moon’s surface (at the Cabeus crater) to create a cloud of dust for analysis. I remember people thinking, encouraged by various reports, that the event was rather a damp squib, since it did not produce a Hollywood-style flash and plume. See an NPR report on the mission here from back then.

lcross_dataWell, science is known for being able to carry on steadily even if there are no overt special effects and a catchy soundtrack. Today, NASA announced that their analysis of the data produced from measuring the dust cloud’s properties has shown very definite signs of water (confirming and strengthening the results accumulated by other missions (India’s Chandrayaan-1 and NASA’s Deep […] Click to continue reading this post →

Help from the Bugs

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On NPR ’s morning edition the other day there was an interesting piece by Nell Greenfieldboyce about a lovely piece of research on the effects of various cultures of microbial organisms in our stomachs on how we extract nutrients from food. The key point is that what lives in our stomachs and how it interacts with what we eat is a key consideration in worrying about issues like nutrition, obesity, and other issues. I recommend listening to the audio of the piece, which you can find (along with a transcript if you prefer) here. (Actually, while searching for the audio for the story I found a related story by Robert Krulwich from almost exactly a year earlier. You can listen to that here.)

-cvj Click to continue reading this post →

The Universe: Cool Cars, Hot Sand, and Fast Balls

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flows in death valleyYou may recall my mentioning a desert trip to shoot something for TV, some time back. One done at precisely the wrong time of year. And to Death Valley, one of the hottest places on earth, to boot. Well, I meant to mention that the episode of the History Channel’s The Universe that the shoot was for aired a week or two ago and it was really excellent. It was entitled “Liquid Universe” and it was a rather beautiful and thoroughly pleasant episode exploring the role of liquids in our universe, a matter not often raised in questions of astronomy except when it comes to matters of water from time to time. This was not about water per se, but rather the whole matter of material that flows and the role it plays in diverse areas of the solar system and perhaps the universe at large. I was using sand to demonstrate how sometimes there are surprising places where you can find fluid/liquid behaviour, and mentioned some of the new phases of matter found in the context, for example, of quarks and gluons at RHIC. (I’ve spoken about that here a number of times in the context of some of my research. See the archives.)

It was an excellent episode and another example of how one can take a topic under the “The Universe” heading and showcase lots of exciting science quite accessibly […] Click to continue reading this post →

Brian Cox on Colbert

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brian_cox_colbertPhysicist Brian Cox had a bit of fun on Colbert a few nights back*. At Stephen Colbert’s prompting he mentions the nonsense about time travel and the Higgs boson, (which I decided not to blog since it was so frustratingly idiotic and had no business in, for example the science section of a national newspaper not the least because it just serves to confuse readers with even more nonsense about the Large Hadron Collider (LHC) than they already have been) and then has a blast (it seems) discussing the importance of Special Relativity, [tex]E=mc^2[/tex], and why you should care, which is the subject of his new book with Jeff Forshaw.

Unfortunately he seems, at one point, to fall into the usual (high-horsed physicist) pattern of dismissing another legitimate science endeavour (food science in this case) as not science, but I’ll give him the benefit of the doubt and assume it was just a joke made in the heat of the moment. He’s too smart and likeable a guy, (and a very good public spokesperson for science education by all accounts and past appearances), to be quite so dismissive. Riffing fast and furious with Colbert will no doubt sometimes produce such slips.

By the way (and Brian does not get this wrong, but does not get the chance to say it, and I’m sure he knows it) people often get left with the impression from press releases about the LHC (see related posts below for lots of LHC background) and other […] Click to continue reading this post →

Looking Forward…

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new_books…to lots of happy reading soon! My new crop of shopping (click for larger view) includes three Octavia Butler novels, two Murakami novels (I think I’ve talked about both authors here before) and a science book by Garfinkle and Garfinkle (I’ve spoken about this excellent book here before) that is a gift for a friend. I actually tend to cluster authors from time to time, meaning that I read something of theirs and then consume several more of their pieces of work immediately after. I did that with Murakami a while back and it is time to come back to him and read some more. Then it’ll be a Butler cluster.

Now… just need to read them. I can’t wait…. but I must finish the astonishingly good […] Click to continue reading this post →

Blue Skies…

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I always like an excuse to look for blue skies, and to have others look too, even in the worst of times. I had a great reason to do it today.

Early this morning before sunrise I settled down to write my ten o’clock lecture for my Electricity and Magnetism class. On Tuesday I had ended with a computation that is the essence of the reason the sky is blue, which is a nice enough thing to talk about, but today I wanted to go more in depth on the whole thing, and show that you can in a few steps show that the blueness has a particular pattern to it. I wrote out the final equations in a few steps and looked at them for a moment or two and realized that with the sun rising at that very moment, it was the perfect situation to have! So I went outside to enjoy the beautiful Autumn day and the beauty there is in seeing an equation writ large in the sky – and it really was all there.

It is particularly at times like this that one remembers why it is that it is hard not to just love Physics! (I hope you’ll forgive my unashamed love of what I do.)

Here is the sky I saw, looking toward sunrise, and directly in the opposite direction:

sunrise_scattering_1 sunrise_scattering_2

Oh, you’re wondering what I am talking about..? Why is the sky blue? What pattern in the sky? Thanks for asking! There are two things I’m looking at. First, light from the […] Click to continue reading this post →

Ask a Nobel Laureate

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mather_youtubeHere’s a fun thing to get involved with. You can ask John Mather (2006 Physics Nobel Prize) a question on YouTube! Go and submit yours!

What might you ask him? Something about physics, or something else? Religion, art, politics? His favourite colour? If you consider asking a question, and whether you go ahead and ask it or not, feel free to mention in the comments what you might ask.

This is how to proceed (from NASA education)*: […] Click to continue reading this post →

Bcycle

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bcycleHey! B all you can B and look at the Bcycle site and then go to the bit that says “I want it more” and add your city and zip and click that box that says tell your mayor.

This is *exactly* what I was wishing for a couple of years ago in an earlier post or two*. (See here and here.) Also fits nicely with a more limited plan a friend is working on that I’m hoping to help push forward… Will tell you more when I get permission to do so.

This is Excellent!!!! Let’s join in to […] Click to continue reading this post →

Don’t Forget the Orionids!

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The Orionids peak today. Well, actually, they peaked a few hours ago, but I imagine there’ll still be some excellent viewing of this meteor shower the next night or two. If you’re up late or very early and out for a walk (in the pre-dawn hours), look up, stay steady for a while, and see what you can see. skymap_north_bigYou’re looking just above Orion’s shoulder (you know Orion since I am sure you are often struck by those three equidistant stars in his belt…see the diagram on right from NASA’s site) for the apparent source of these fragments of Halley’s comet’s tail that we happen to be passing through. It is these chunks of comet-tail that enter our atmosphere and produce what we see as meteors. […] Click to continue reading this post →

A. S. Byatt

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Following hot on the heels of Margaret Atwood coming to town last week (over at UCLA), we have A. S. Byatt over at USC today! Very exciting. It is actually partly one of our College Commons events as well, and last week as a College Commons event (with a Darwin tinge) we had a viewing of the film of her book Angels and Insects, which I thought was really excellent!

Her lecture is entitled: “The Novel as Natural History”, (and will resonate with some of the themes I talked about in my report on the CC event about Collections) and I expect it is going to be quite wonderful. Details here, and the blurb goes:
[…] Click to continue reading this post →

They Couldn’t Car Less

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As you know (maybe), for environmental (both local and global) and other reasons I’m not a fan of routine unnecessary car trips, and so I walk, bike, and use public transport a lot. My car is mostly only used on the weekend. This sort of declaration usually results in blank stares, subsequent treatment as a leper (or worse, in many LA circles, – poor!!), serious inquiries as to whether I was convicted of DUI, comments that this is impossible in LA, admissions from locals who’ve lived here for umpteen years that they’d no idea that there was a subway (that has changed slightly in the lastmelba_thorn_by_diane_meyer few years… now at least they know, but typically they’ve no idea where the stops are), and so on and so forth. I will admit to getting annoyed when I see announcements for events and locations that go to lots of trouble to give driving and parking instructions and never mention the subway stop or bus lines that might work for some as well. (Right: Artist Melba Thorn, photo by Diane Meyer for an exhibition on the issue, to be discussed below. Ironically, (at the time of writing) the exhibiting gallery also only gives driving and parking directions on their site. Isn’t that rich?)

Anyway…. you know all this from reading the blog. Check the archives for posts and discussions on a variety of aspects. Here’s part of the executive summary of my main point, and then information about a new exhibit follows after: […] Click to continue reading this post →

Dawkins, Atwood and More – On Darwin!

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As you may know I’m a Margaret Atwood fan (read my immoderately breathless account here), and I also think that Richard Dawkins is an excellent scientist and science communicator. On the other hand, as you also know from earlier discussions, I don’t think that his take-no-prisoners approach to the science and religion discussion is the best way forward. Anyway, I found this marvelous Newsnight special from last month. A celebration of Darwin and his work. It has lots of discussion about Darwin then and now, cultural and scientific impact, the ongoing debates, a new staging of a play, a recent film, and participating is Atwood, Dawkins, and the Rev. Richard Coles and the poet Ruth Padel (who is also a descendant of Darwin.) It is in four parts and […] Click to continue reading this post →

Audience View

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colloquium_audienceA shot of the gathering audience for my colloquium two weeks ago. (Click for larger view. I mentioned the circumstance behind it here.) It was a lot of fun, I must say. I spent a good deal of time preparing the slides in the day and a half leading up to it, and it was worth it. The audience seemed very attentive (or perhaps they are collectively very good at faking) and I got some great questions along the way, and at the end. My hope was to do a short and sweet colloquium […] Click to continue reading this post →

Emergence

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emergence_snapYou might remember a post I did back in January from Cambridge (the one in England), mentioning what I was up to on that quick trip.

It was a board meeting of the Institute for Complex Adaptive Matter (ICAM), and I said, among other things:

ICAM has a great deal of interest in outreach -communicating science to the general public- and education, and this is one of the reasons I’ve been added to the board, since I’ve some experience and ideas to share in an advisory role. I’ll be giving a talk about some of these things using some projects of mine as examples (ASTI, blogging, etc). They’ve already been doing wonderful things in education and outreach, and have made it a priority to make it a major part of future activity. […]

I mentioned that one of the projects under development was their site called Emergent Universe, which promised to be rather fantastic to explore. It was under development at the time, and we (the board) spent some time at the meeting commenting on and making suggestions for its improvement. Well, it is finished, and boy it looks great! Suzi Tucker and her team should be immensely proud of their accomplishment.

There’s so much material there, beautifully presented (a still taken from it is […] Click to continue reading this post →