The Meddler, I

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I don’t like getting angry. I don’t like losing my temper. In the first place, it makes me feel like I failed, and in the second place, I’m a little too good at being angry. I’m really scary. So I let it happen very little.

On Wednesday of last week, I almost completely lost my temper at work (bad enough), and in front of a guest (even worse, in my opinion), Bee, and in front of two of my students (setting a bad example). I apologized to them all, several times, later. Luckily (maybe because I was not wearing any purple pants?), I did not lose it entirely but my internal temperature was really very high indeed by the end of the incident.

travel coffee mugWhat was the matter? You’re possibly going to think that this is an insignificant matter, but I don’t agree. We all went for coffee to one the (usually excellent, with usually very good staff) cafes on campus, and as usual I brought along my own coffee cup. I do that a lot, primarily since it means that I do not use any paper cups as a result, and secondarily because it keeps the coffee warmer for longer, is close to spill-proof, and is much nicer to drink from. I’ve been doing this for years. The routine is usually this: I ask for a small coffee, they hand me a small coffee cup, I smile and say I already have a cup and hand it back, I pay for the coffee, and I pour myself a small coffee and leave. It’s not always in that order, but it is close enough.

This time, I asked for a small coffee, and indicated that I’d have it in my cup, as usual. Click to continue reading this post →

Yellow Fibre Bundle

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palm flowers from gardenThese are quite lovely, aren’t they? I always have great difficulty getting these giant structures (whole thing is about a metre long) down from the tall palm trees that produce them. I take them down because they produce a huge mess over the rest of the garden as they develop. Not the lovely tiny yellow flowers but the little palm nuts (tiny scale model (large grape-sized) coconuts, essentially – same family) that result later, one nut for each of those tiny yellow buds that you see!

So I cut them off. Sad, I know, but there it is.

I do it early because they have to fall. Where do they fall? All over the plants below, doing a lot of damage if I am unlucky. Better to have the much lighter blooms fall (still bad enough) than the Click to continue reading this post →

Joshua Redman on NPR

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joshua redman by michael wilsonThere was a nice piece on NPR (by John Ydstie) featuring Joshua Redman today (photo left by Michael Wilson). He’s one of my favourite of the young (relatively) saxophonists on the Jazz scene today. (Some Wiki info here.) When I was an East coaster I saw him a number of times in concert, and he was always very good indeed. His albums are very good too – fun and full of personality, very soulful, although not hugely ground-breaking (not that this is always necessary to make a great musician). By the way, Joshua Redman’s music is actually a good starter place for people who might want to start out in Jazz by listening to some Click to continue reading this post →

Parthenogenesis, II

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bonnethead sharkRemember Flora? The Komodo dragon? I blogged about her here and here. She produced offspring using parthenogenesis while in captivity last year. Well, there was a news story earlier this week about a bonnethead shark in in the Henry Doorly Zoo in Nebraska giving birth to a pup. (Interestingly, zoo-keepers and news reporters seemed uninterested in giving our subject shark a name, as happened for the reptile.)

It was a puzzle for a while as to how she did it (as I learned in a BBC article):

At the time, some theorised that a male tiger shark kept at the zoo could have been the father – but the institution’s three bonnethead females had none of the bite marks that are usually inflicted on their gender during shark sex.

Some even suggested that one of the females could have had sex in the wild and stored the sperm in her body – but the three-year period in captivity made this explanation highly unlikely.

But eventually DNA tests resolved the issue:

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The Burning, II

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Well, I’d expected that I’d have got to go to Griffith Park to do a hike and maybe show you some pictures to give you an idea of the changes since the fire (fire posts here and here). This has not happened yet, partly because last I heard they were not allowing people close to those areas… that may have changed by now. It has been over ten days since I checked.

Anyway, Colin Brown of Silver Lake was up there quite soon afterwards, and took many photos. They are not really for the squeamish, since he focused a lot on the animal remains that he found. So don’t look if you are likely to be disturbed by the Click to continue reading this post →

Science Fair Video

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It turns out* that the local NBC affiliate did a piece on the California State Science Fair (which I reported on yesterday). There’s a brief overview, shots of some of the students talking at their displays during the judging, and interviews with some of the students. It’s rather good. Link to it here (unfortunately you have to let it play a brief ad first).

nbc student interviews at california state science fair   nbc student interviews at california state science fair   nbc student interviews at california state science fair   nbc student interviews at california state science fair

-cvj

(*Thanks, Chris Gould!)

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A Fair Bit of Fun with Science

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Yesterday was a full day indeed. The main event? The California State Science Fair. The venue? The California Science Center (just across the road from USC). Here’s a picture of it in case you’ve never been:

california science center
(Click for larger view.) California Science Center (with one of my personal emergency escape crafts cleverly disguised somewhere in the picture – all scientists have emergency escape craft, by the way – along with our plans to take over the world, our lab coat, and so forth…)

science fair briefing of judgingThe time? 7:00am. Yes, we start early, as there is a lot to do for the long morning. The judges all gather in the IMAX theatre for a briefing about the ins and outs of the organization this year, the times at which various things will happen, and a reminder about some of the finer points of judging.

At 8:00am we broke up into groups of judges who will judge various sections. Mine was Applied Mechanics and Structures – Senior. Here, we decided on our collective strategy concerning how we’ll go around the various displays, making sure at least five judges (there were ten of us in total) see each project once in the first round of interviews. We’ll compare notes during the break at 11:00am, agree which ones we should all have seen – in order to focus on deciding which ones get which prizes or honourable mentions. I forgot to take a picture of our group of judges sitting around the table chatting. Most of the judges in my group were people from the aerospace industry, I gathered. About three or four people were new to the whole thing, and so some of us explained a bit about the things that we ought to be looking out for in the judging. This also (given the section were were to judge, and given the makeup of the judging panel – many coming from an industry where the place where the science and engineering are quite thoroughly – and necessarily – mixed together) leads to discussion about making sure to distinguish between a great science project and a great engineering project. It’s also good to be aware, when making comparisons, of the vast differences in resources that some entrants have access to. These two things, to my mind, are very important (and we all agreed). A kid (especially one with access to lots of resources, for example) can dazzle an unwary judge with lots of fancy cool equipment and build something that is truly wonderful and admirable, but that does not necessarily mean that they would have done as much science as the next entrant who has done some very careful scientific experimentation with a innovative way of answering a clearly stated question, but in a less spectacular setting – perhaps mostly using more affordable household items.

science fair students
(Click for larger view.) Overview shot of one of the sections, with poster displays.

Well, with that in mind, we all went off to meet the youngsters! See the project listings here. This is the best part, of course… talking with all those enthusiastic young people Click to continue reading this post →

Backreacting Asymptotically

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(Random title constructed to reply to Bee’s post called Asymptotic Backreaction.)

You know, I’ve made some great online friends here on this blog. It’s all the result of that community I’m trying to keep going (and expand) here with contributions to the conversation from many of you in the comments, and even sometimes in guest posts. I’ve been lucky enough to meet some of these new friends since everyone likes to pass through Los Angeles sooner or later. In the past six months, four familiar Asymptotia contributors have passed through Los Angeles and I’ve been lucky and delighted to meet them: – Amara (November; on her way to a conference, and she gave us a talk – I’m trying to get her to do a guest post on her “Watering the Earth” topic one day), Candace (January; on her way to a conference here -she did a guest post) by the way, Athena (two weeks ago, on the way to a conference), and this week I finally met Bee (also giving a talk, and on her travels -she’s also done a guest post by the way) who turns out to have just that same excellent eye for observation, and quietly sharp sense of humour, as her blog posts. (She’s the main blogger behind the excellent Backreaction, and she’s done a post there which briefly mentions her visit to Disney Concert Hall with me.)

Anyway, in the photo below is Bee (click for larger), at Grand Central Market (inserted into a photo taken near one you saw earlier. See also this post.):

Sabine Hossenfelder at Grand Central Market

Tameem, a student of mine, has teased me a bit about my showing visitors around, Click to continue reading this post →

JPL the new Disneyland?

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If you’re looking for a day (or half day) out today in the greater Los Angeles area, let me suggest a trip up to the Jet Propulsion Laboratories (JPL). (Details here.) Their open house (held today and yesterday) is rather fun…. you get to learn about some of the grand space missions of yesteryear (like the 1977 Voyager missions… both craft are still actively sending data from beyond the solar system now), or of the moment (like Cassini-Huygens, for example sending wonderful pictures of Saturn and Titan back for us to learn from and marvel at – see e.g. here), or to come soon (like WISE (an infra-red telescope which will help broaden and deepen our understanding of planetary systems, galaxies, and the universe at large), or Dawn (a mission to go and orbit and study two large asteroids).

JPL Open House

You can learn lots of things about the science these missions are teaching us about not only far away worlds, but about our own world. There are also missions which are studying earth directly (making observations about our atmosphere, oceans, and so forth), so even if you don’t care about space, there’s something for you.

JPL Open House

JPL Open HouseYou can visit special exhibits for each of the missions, talk to scientists and engineers, and even visit the large warehouses where the spacecraft are made, and where they are assembled. There are the control rooms to visit, JPL Open House a dome with giant robots (I’ve no idea about that one), an extra special exhibit about Mars exploration, and lots of stations with all sorts of entertainment for kids! They’ve done a great job providing a lot of material for everyone to take away, including packets of information for teachers to use in their classes too!

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JPL Open House!

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The Jet Propulsion Laboratory will have on open house today and tomorrow! This sounds like a lot of fun, actually. More about it on their website, from which I snatched:

jpl openhouseThis popular event will celebrate JPL’s accomplishments with exhibits and demonstrations about the Laboratory’s ongoing research and space exploration. Many of the Lab’s scientists and engineers will be on hand to answer questions about how spacecraft are sent to other planets, how scientists utilize space technologies to explore Earth and how researchers are now searching for planets beyond the solar system. Visitors will see exhibits, displays, demonstrations and presentations about new technologies, solar system exploration, spacecraft communication and much more.

The Open House is a fun and educational experience for children too, with special hands-on activities designed for kids. Food and beverages will be available, along with space souvenirs and NASA and JPL merchandise.

I think I’m going to go along and have a look! Maybe I’ll see you there…

-cvj

Read a Gravity Essay Today

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The Gravity Research Foundation announced its awards for the 2007 essay competition. (Hmm: I think we should have more technical science essays, in more categories, to inform each other about what the big questions and answers are…. and maybe even just for fun (because I’m in a silly mood) -and to make an important point about how vital it is to communicate what we’re up to to each other- have a swanky awards ceremony, with speeches, and music, and an MC, and everything. And of course it should be held somewhere in LA… Like the LA Times Book Awards. It could be held at the same time as (another fantasy): awards we give to our peers for the important task of writing essays, books and other efforts in the service of communicating science to the general public.)

But anyway, you can read all about the winners of this year’s awards here. Nicking a bit of text from the site, here are the top prizes:
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“Simple Physics”, by Sempé

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Jean-Jacques Sempé does it again, with another great New Yorker cover. This time, his subject is- my people! (click for more detail):

sempe new yorker cover smallPretty interesting to see the choices of equations actually (mostly various quantum mechanics statements – Schrodinger’s equation, Heisenberg’s uncertainty principle, the definition of the Hamiltonian in question (there seems to be an external electromagnetic field?), then there’s a reminder of what happens in beta-decay of the neutron…and there’s the inevitable Einstein’s E=mc2 thrown in at random… and more…).

It’s great to see all this up there… although it is worth noting that a more typical blackboard would have (instead of definitions/statements known very well to the physicist) much more of a working computation in progress, probably.

Of course, if the physicist knew that he or she was to be on a New Yorker cover, perhaps they would have Click to continue reading this post →

LHC Coverage

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CMS at LHC NYTimes

One of the Large Hadron Collider’s detectors, the Compact Muon Solenoid (CMS).

As you gather a lot when there are discussions on the topic here and elsewhere, there’s a lot of excitement and anticipation among high energy physicists about a number of things. I would go as far as to say that we are already in a very rich experimental time for results pertaining to high energy physics (or, if you insist, “fundamental physics” issues (I have in mind, for example, all the wonderful cosmological and astrophysical data that continues to come in, with more to come), and it is set to possibly get much richer – maybe even a new Golden Age with a little bit of luck – when the Large Hadron Collider starts producing results. We are really going into the (relative) unknown with this experiment, and this will be a great time to be working in the field – with a little luck, as I keep repeating.

A number of substantial articles have recently appeared in the general media that give you a good sense of what is going on, more reasons (and more detail) for why there is Click to continue reading this post →

Taking the Time to Work it out

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Itzhak BarsOne of my colleagues here at USC, Itzhak Bars (picture right, by Don Milici), spends a lot of effort trying to understand aspects of time. In fact, in his way of approaching things, the fact that we see a single time dimension (all the others being space dimensions) would be a consequence of certain choices (“gauge choices”, in the more technical language) made, whereas in the underlying formulation, there’s be two times. Yes, two.

You hear about extra dimensions, and you think “string theory”, no doubt. No, this is nothing to do with string theory. He’s developed this idea independently of string theory for Click to continue reading this post →