This is an extra homework that some students of the General Relativity class did to make up for one that did not count earlier in the semester. While writing it, I realized that this universe is in fact, Heaven! You know, we become beings of light, and live forever, etc…
I thought it would be fun to share its final form:
“You work in the design section of the company that manufactures universes. (This is […] Click to continue reading this post
So last week we had a visit from Kelly Stelle (he’s part of the high energy theory group at Imperial College) who gave us an excellent talk about aspects of supergravity. His work connects to the fascinating ongoing story about finiteness, and the new techniques being used to do the multiloop computations (see a recent Scientific American cover story about some of that – it is misleadingly packaged by the magazine, as usual (preview here) , but the article itself, focusing on the computational issues, is nice).
After his talk, I gave him a tour of the campus, and as we passed through the Doheny Library to view the lovely interior, we stopped by the ongoing construction of the Mosely Snowflake Sponge fractal that I told you about here.
They’re making a lot of progress.
We spent a few minutes folding some business cards to contribute some component cubes to the construction, and I took a snap (see photo on left) of Kelly at work. We made two or three cubes each…
Here’s a shot of one of the completed modules […] Click to continue reading this post
On the Red Line on Saturday (on my way to test out the Expo line – see earlier post) there was an unusual spectacle in one of the carriages. This woman had some headphones halfway on, and was singing Beatles songs at the top of her voice! She was at the start of “All My Loving” when I got on (I’ve written some of the lyrics down to remind me of the moment). After their initial surprise, people were doing that typical “I don’t see anything unusual” look, trying not to notice her by looking everywhere but in her direction.
I imagine they thought she was crazy. Perhaps she was, or perhaps she was just having an odd day, but for sure she was also just enjoying herself immensely, not […] Click to continue reading this post
The new line rocks! I went down there with my Brompton on the earlier side of things, this morning. I took the Red Line and changed seamlessly to the Expo Line at Metro/7th, and it was an excellent ride. I really do think (as I said in the previous post) that this is part of a major transformation for the city. This is a transformation with regards things like energy usage, congestion, community, air quality and all those wonderful things public transport helps with.
Of course, at the outset there is something truly right, to my mind, about being able to easily connect from downtown to Exposition Park and the Science and Natural History Museums, the African American Museum, and of course USC – All major Los Angeles institutions clustered together and now connected back to the newly beating heart of it all. From USC, I can now easily connect to the music center, LA Live, MOCA, any number of my favourite restaurants, bars, cafes, and other places I love downtown, and then float on home on the Red Line, or off to Pasadena or Boyle Heights on the Gold Line. This is so exciting to see come to pass. I’ve been dreaming of trains running along Exposition Boulevard between USC and the Museums and the Rose Garden for many years now, and it is now a reality. Stepping off the train today at the Expo Park/USC stop was just magical.
I recorded some footage of my travels on it today for you and edited it all together into a ten minute film. You can see it in the embed below. Consider it an invitation to […] Click to continue reading this post
Only ten hours until the Big Transformation! The Expo line will open to the public at 5:00am tomorrow (Saturday). I think that this first major thrust to the West, connecting downtown to USC, Exposition Park and the Museums, and points West to Culver City, should be truly transformational for not just the locations involved, but the city at large.
I hope it will change minds about what is possible for public transport in Los Angeles in a huge way (the old “it doesn’t go anywhere” complaint will be heard a bit less maybe?), and connect and enrich all the neighborhoods involved. (And yes, on the personal side of things I hope it ends up, in combination with the Red Line, being better than just sitting on the bus all the way. We shall see.)
There’ll be a special schedule for this opening weekend, with the line (free to travel on for the two days) stopping at 7:00pm. I was a bit scared by this for a moment, […] Click to continue reading this post
It was a perfect day for cycling, back on April 15th when the 4th CicLAVia took place. (Sorry it took me a while to report on it.) A lot of people turned out, and it was as good as it has ever been! We set of from the HelMel area again and went to Bolye Heights and back, breaking for an excellent lunch at Guisados again. Just like last time. The photo below featuring the 4th Street bridge over the LA River is my favourite single photo of the event this time:
Of course, there’s not just the one photo for you. I took hundreds of other great ones […] Click to continue reading this post
You see such lovely things along the side of the street if there’s time to notice. (Click for a larger view.)
This is one of the many reasons I often walk each day to and from the bus stop or subway station. You miss this stuff in a car (or sometimes even when on a bike).
By the way, I’ve updated my earlier post with photos from the LA Times Festival of Books, as promised.
-cvj
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This is rather nicely done*… Stay with it beyond the opening bits, and enjoy the breakdown! Click on the embed after the fold:
[…] Click to continue reading this post
Er… it is National Physics Day today, apparently. National Science Foundation says so, so it must be so.
Bad me for not knowing. In my defence, I try to live every day like it is National Physics Day. International, even.
[…] Click to continue reading this post
It is the 22nd Anniversary of the launch of the Hubble space telescope today! As you know, this instrument has produced a wealth of scientific information over the years, as well as lots of wonderful pictures for everyone that broadened and deepened our sense of wonder about this remarkable universe we find ourselves in. The Hubble site is here.
Phil Plait has re-posted his 2010 post “Ten Things You Don’t Know About Hubble”, […] Click to continue reading this post
You know, I’d love to pretend that I’ve just come in from hanging out at the Edison, or the Blue whale, or some other fun place, feeling a bit concerned about my morning class on how to write equations for the shape of the universe (we do some cosmology in the General Relativity class tomorrow)… but instead I’m up at almost 1:00am because of a persistent dry cough, indigestion, and a noisy mockingbird in a tree just outside. Are these connected? I do not know. All I know is I cannot sleep.
So I blog.
It has been, once again, a crazy week. There are times when I wonder if this has become the norm, which usually leads me to valiantly fight a bit to ensure that is not the case, resulting a a withdrawal from a lot of stuff to regroup. I hope to do that soon. Although I’ve said yes to so many things, it is looking like July or August before that can happen. That’s bad.
Right now I can only remember back as far as Wednesday, where the day began with a last check of the midterm I wrote for the GR class (second midterm for them) before setting it at 10:00am. (Perhaps the most interesting thing on it was perhaps the computation of the surface gravity of a static black hole, working in Eddington-Finkelstein coordinates…) At 10:25 I snuck out of the classroom to meet with a screenwriting student who is working on a screenplay featuring a physicist character. She was seeking some advice and wanted to exchange some thoughts about the work she’s doing… I got to gripe a bit about my pet peeves about scientist characters (not just the scarcity of well drawn ones – although things have gotten better in recent years) in TV and film. Somehow the rest of Wednesday (after the seminar ended at 1:40) is a bit of a blur, but I think it did involve me leaving campus to head home to hide and do a bit of finish work on a page I mentioned in the last post. Maybe. (Oh, there was also the official opening party for Umamicatessen (new restaurant downtown) in the evening, that kept me out to almost midnight. I’ve been meaning to blog about the place since the official “soft” opening party about two months ago, but had not got to it yet.)
Thursday saw me start the day way too early (as described in that post), and the [..] Click to continue reading this post
I’m supposed to be writing a talk, but it’s too early to start on it. I’ve been woken up early (5:00am) and kept awake by ideas swirling around in my head, and a mockingbird’s singing – it is nesting in a tree near the house, and I think I may be doomed to listen to it every night until the Fall…
Tuesday of last week saw me hiding and working on The Project. This time, it involved a bit of stalking. Last year I wrote a story which mostly takes place in a family home, between a brother and sister. I had a very particular shape for the house in my mind. They move from room to room, and spend a bit of time on a patio at the front. This time, I decided to build the entire house and populate it with all that I needed so that I can use it as reference to design the backgrounds for the story. Some weeks before I’d started looking a bit more closely at some houses I’d seen in the area as models. It is almost like the house which existed in my head was out there somewhere in the city, and I just had to find it. Somehow it was intended to be a typical smaller Los Angeles single family home, and if I looked for it, there it would be. I saw a number of houses on my walks that looked suitable enough, and was going to choose one of them and make modifications… and then one day I found it.
I’d been walking past it every day for several weeks, and had not really been in the right mode of thought when doing so, and so had not looked at it in the right way. Also, I’d been distracted by a rather larger and grander (too grand) house almost across the street from it. As soon as I thought about what I’d designed last year, and so rejected the house across the street, I realized that this one was the house I’d been looking for all along. So I took a couple of hurried surreptitious reference photos (while walking past pretending to be fiddling with my phone), and went home and laid out some of the dimensions I’d guessed for it.
I worked up some made up floor plans (based on my story’s needs and my memory of the interior of houses like this that I remember, and then I decided to build it […] Click to continue reading this post
This was a fun assignment. I’m giving a talk (“Graphic Adventures in Science Outreach”) on Friday to my colleagues and friends at the Los Angeles Institute for the Humanities, and they asked me to send a graphic to them to use for the poster. So I spent a bit of time digging into my database of drawings for The Project and threw something together pretty quickly. I rather like it. (You will maybe recognize that drawing from an earlier post – I added in an earlier stage, and then a drawing of a hand I’d done for something else…) By the way, it is not an event open to the general public and is by invitation only, so just showing up won’t get you in.
Ok… probably not to me, but I have been banging on about the idea for some time, since my 2007 post on Paris’ Velib, so maybe mine was one of the many voices that came to his ears eventually… So they are going to finally start a bike sharing program in Los Angeles! News story here, and the Mayor Villaraigosa will be talking more about it at the start of today’s CicLAVia.
This is fantastic news!!! With this, the opening of the Expo line in a couple of weeks, and a number of other things, it feels like a lot of my dreams for LA are coming true….
Don’t forget (if you’re in the Los Angeles area), 10:00am to 3:00pm tomorrow is CicLAVia. This is the fourth one. The weather looks like it will be perfect for cycling, and there’ll be even more stops for food and drink than before. More information at their website here (click here for the expanded route that debuted last time). See earlier posts (linked below) on the previous events, and I’ll re-embed one of the time lapse films I made so you can ride along with me:
See you there!
