Category Archives: Los Angeles

Stick with the round balls, for now

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So, apparently, electrons are round. Very very round. So when drawing those terribly wrong but evocative pictures of atoms as a lump in the middle (the nucleus) with a collection of round balls in orbit around them (the electrons), go ahead and make them nice and round. Very round. How “very” are we talking about here? According to this report on the recent experimental measurements in the Guardian:

Were the electron scaled up to the size of the solar system, any deviation from its roundness would be smaller than the width of a human hair […]

So you’d have to be using a pretty impressively sharpened pencil to draw it that accurately round. But give it a try.

Ok, what’s the story here? Well, oddly, this seemed to be on a lot of news sources yesterday, and I’m not sure exactly why. Maybe because it mostly seemed to be pitched as a “back to the drawing board for the theorists” story (two major sources I heard had it spun this way), which editors seem to like running with. And the roundness? What’s that about? Well, what they’re taking about is the result of a long careful set of measurements done by Hudson et. al. at Imperial College (my […] Click to continue reading this post →

Momentus Mingus

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So at the end of last week, it was that time. I’d been doing temporary countermeasures over the past month or two to put it off, but it was inevitable. I tried to run Illustrator, the program with which I do my painting for The Project, and while opening, it stopped and complained – I’d run out of hard drive space. Somehow, since what feels like only yesterday, I have filled (well, with 4GB spare) 320 GB of had drive space with…. Well… Who knows what? Lots of little bits of everything, I expect. So after a bit of research, I decided to go wild and get a 750GB 7200 rpm drive from Seagate – new on the market this year, apparently. Usually I wait for new things like this to have their creases ironed out, but it seems that they’re really just gluing two smaller drives together, and their 500GB version of the same thing seems to be thought of as reliable, so I decided what the hey. And this whole series of drives is called the Momentus, so surely that’ll be a good thing too.

This meant a fast trip to the always-fun Fry’s Electronics, in Burbank, about which you’ve maybe read a post from me before. Fast because it closes at 9:00pm and I was leaving the house at 8:30pm, but wanted to get it so I could begin the cloning process (see later) overnight, so as to get back to work on the computer the next day.

The trip was great, as I expected, made even better by the fact that the things I wanted were actually on the shelves – said hard drive (a steal at $99), an enclosure for it to make it USB accessible ($9.99) while I clone my existing drive to it, and some tools ($13.99), since Apple, fresh in their new role as Evil Empire, keep changing the screws on the inside of their electronics to odd sizes and shapes to discourage DIY work, trying to force you to take it into their amusingly called Genius Bar… Happily, people have been making screwdrivers to undo the five round pointed head screws on such models and selling them in kits. I found one. Hurrah! (Turns out that I did not need the one for the pentascrew… it was introduced on a different model than mine. The smaller Phillips head driver was good to have though, and as […] Click to continue reading this post →

Got Your Rapture On Yet?

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Well, it’s 7:00am on Rapture Day and what am I doing? Drawing. I’ll do a bit of gardening later. It’s not a bad way to go, really.

…And then I’ll check back online to see some more funny reporting on the oddly Raptureless Rapture Day, like this Guardian article I’ve been looking at. So far, the most fun has been looking at the headline of various articles, such as:

“After the Rapture, who will walk your dog?” (NPR)

“Apocalypse Now. … No, Now!” (HuffPo)

“Apocalypse Not Now: Rapture fails to materialize” (Guardian)

(I may update with others later.)

…And although I tend not to read comment streams in newspapers and YouTube and so forth, because of all the general ickiness, I’m making an exception for these articles. My favourite so far is way down on the comments on the Guardian article…. people had been making lots of good jokes, and then someone wrote:

[…] Click to continue reading this post →

Telling the story of the Revolution

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The good people at Revolution Books made me quite at home when I arrived, and the talk (see previous post for background) was fun. There were about 20 people there in the end, all very engaged and asking many excellent questions*. So I spilled over the allotted time as a result, but in a good way, since people really wanted more, it seemed. I managed to explain all the key parts of Special Relativity that I wanted to, unpacking in a way that seemed to work, and even went on to explain the Equivalence Principle and set up the key aspects of General Relativity.

The prep for the talk was a blast… I’d just written out some thoughts on several sheets of large drawing paper – the big stuff I like to do large life […] Click to continue reading this post →

Movie Notes

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Going to the movies this weekend? Lots of interesting choices, but perhaps you especially want to see some portrayals of people in academic careers by some of the hot young phenoms. Well, here are two you might not have considered, both films released May 6th.

1. Observe Nathalie Portman as an astrophysicist in Thor. I don’t find this to be too much of a stretch since the actress always seemed to me to radiate an intensity and intelligence that would help make such a role believable, even in films where everything else is rather a disaster as far as believability is concerned. (cough, cough, Star Wars prequels, cough, cough) Well, it turns out that Thor is not the disaster I thought it would be and is rather well put together, all things considered (this is one of several Marvel characters that I was underwhelmed by in the old days). So go for Portman, stay for the hammer, lightning bolts, and other stuff. Turns out the physicist aspect of her performance was not as well studied as her ballet in that other film, but oh well. It was not like it was the central issue of the film. But enjoy all the Einstein-Rosen bridge mentions!

2. Observe Jessica Alba as a mathematics teacher who loves numbers in An Invisible Sign. Now, er, this for me was casting that did not bode well, but to be fair,[…] Click to continue reading this post →

Revolution!

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Ah. Should have mentioned this before. Tomorrow I’ll be talking at Revolution Books. No, I won’t be stirring up political buzz or anything like that, rallying the troops, singing the songs and so forth. Sorry to disappoint. I’ll be there doing what I usually do – trying to put a bit of science out there among the rest of the culture where it belongs. I ran into Keith James of Revolution Books in the market one day some time ago and he recognized me from a tv show explaining science – and I was hanging out with a writer friend whose work he was a fan of, and so it was a two-birds-one-stone thing for him, stopping us to say hi. He raised the idea of me coming and explaining Einstein’s Relativity at the bookstore, and I readily agreed. It has been a long time in the making -largely due to me- but we finally settled on a date, and it is tomorrow. I also suggested that I put them in touch with a friend at the Griffith Observatory so that after my […] Click to continue reading this post →

Go Visit JPL!

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This weekend is the JPL Open House! You might recall from my visits there in the past (or, at least, my reports on them – see e.g. here) that it is a fun and informative time. I recommend it. It runs from 9:00am to 5:00pm today and tomorrow, and you can go along to see what’s up with various JPL/NASA missions, hear about future missions, learn the science and technology behind various equipment and the various science goals, and much more.

See the website here for more information.

Here’s a video I made two years ago (including a Mars Rover roving over children!!!):



I hope I can go today, but I’ve got rather a lot on, including trying to find some time […] Click to continue reading this post →

Done. Sort Of.

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Last night I graded the exam for my advanced string theory course, computed the final grades, and will enter them into the System today. Hurrah! It was a fun class to teach, maybe even to learn (you’ll have to ask them). The final exam took me most of Sunday to write and LaTeX carefully, checking for typos since there were a few “show this” type questions where I gave a complicated expression that they had to derive. In […] Click to continue reading this post →

Happy Mother’s Day!

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It is Mother’s Day over in the USA today, and although my mum and sister (both mums) are over in the UK where they have Mother’s Day a bit earlier (no, not hours earlier, weeks earlier) I still try to remember to make and send them cards to arrive in time for the USA one. For the card I made for my mum this year I used these spectacular roses I spotted on campus (during the recent festival) in the garden next to the USC Alumni house (it used to be the original USC building some 131 years ago):

Stunning, aren’t they?

I wish all Mothers, far and near, Happy Mother’s Day!

-cvj Click to continue reading this post →

Festival Activities, 2

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A week has passed since the festival and I’ve not posted any more information about it. This is partly a result of being preoccupied with several other things, including organizing yesterday’s workshop… which seemed to go very well, by the way. See previous post for an update.

I thought that the festival was simply great. I attended many more panel discussions than I had before, and that may have been a good thing since it meant that I mixed outside and inside a bit better than I have in the past, meaning that I was less likely to get tired from the heat or from simply being on my feet all day. I ran into several friends out enjoying it, some themselves on their way to or from panels or presenting at stages. It works really well at USC, and it seems that people were really enjoying the new layout, and the better access to the festival overall afforded by the numerous public transport links I saw people enjoying (had to miss a 200 bus on the way from MacArthur Park to the campus because it was full of people heading to the festival before 10:00am on Saturday. Nice to see.)
[…] Click to continue reading this post →

In Progress

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I had an early rise this morning, to make it down to campus early enough to set up (with the help of my co-conspirator Tameem) the room for the all day meeting I mentioned earlier, in order to start at 9:00am. All worked well… And things are progressing nicely (see photo of some of us in the lovely room we’re using) with local participants from USC, UCLA, UCSB, and even Stanford! It is excellent to see such support and enthusiasm for this semi-annual event!

-cvj

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Science Fair Judges Needed!

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My colleague Chris Gould, who organizes the California State Science Fair (currently on down at the California Science Center!) is also working on the Intel International Science and Engineering Fair (ISEF) this year, to be held at the Los Angeles Convention Center. In addition to more volunteers to help out in a range of capacities, they need more judges for the fair in many categories, so please consider giving of your time to help out. These things can be fun, as you may recall from my posts in previous years on similar fairs (e.g. here). There’s apparently a specific need for more people in aspects of life sciences and environmental sciences, so please pass this message on to people who you think might be suitable and interested.

Here’s an extract from Chris’ recent email about this: […] Click to continue reading this post →