Category Archives: work

It Works!!!

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Well, it seems that the largest and most complicated experiment in the history of humankind is…. working so far. They circulated the first beams at the Large Hadron Collider (LHC) earlier today! Even Google is excited. Check out their front page:

google\'s LHC graphic!

Fun live blogging reports from the scene of events over at Resonaances, US/LHC Blogs (several posts), and Superweak, for example. I got the ATLAS readout/image below from the latter. (Presumably this is the shower of particles produced when they did the “dumping” described in Resonaances? Or just stuff produced by the edges of the beam as it passes through?) Press release from CERN here.

first event at ATLAS
Update: NPR’s Morning Edition had a nice report this morning in the form of a chat between Rene Montagne and reporter David Kestenbaum. Fun to hear the audio clip of the control room. Link here.

Oh, right. The silliness. Click on that useful site I mentioned earlier to see if the earth Click to continue reading this post →

One in the eye for Big Textbook?

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Well, back to teaching issues. Textbooks. I know the following is illegal, but I will admit to being hopeful that this will supply a much needed kick in the rear end for the “textbook industry”. (The very term makes me a bit ill sometimes.) In teaching the big courses at freshman or sophomore level to classes that have a couple of hundred students (broken into sections – we don’t like super huge classes here at USC) enrolled, it is hard not to notice that there’s something slightly insidious about aspects of the textbook game. Despite the fact that we are teaching subjects (Newtonian physics, thermodynamics and a brief bit of “modern physics” that is mostly from no later than 1905) at levels that have not significantly changed for over a century (in some parts, several centuries), the Industry (shall we call it “Big Textbook”?) keeps finding new excuses to come up with new editions. These editions get more and more expensive, and heavier and heavier to carry around. I don’t know why this is necessary, except to force new students to buy the books all over again.

Additionally, the new hook is to combine the book with an access code for further […] Click to continue reading this post →

Thoughts During Break Time

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Ah. I see that it’s been three days since my last confession. Gosh.

Well, it’s been a quiet weekend here in, er, my part of the universe. Good time for reflection and rest. I had a couple of posts I was going to do but in the end decided to break the pattern and change up my Saturday and Sunday, and the “change up” did not include the blog. So sorry about that.

I’m taking a break between an interesting meeting (that I will tell you about) and my office hour. The sun’s shining outside and it is not oppressively hot, surprisingly, so I’ll keep this short and poke my head out there again before my Physics 151 visitors arrive.

Some of the things on my mind: […] Click to continue reading this post →

A Farewell To Arms

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cut off arms from shirts

When I look at this, it sort of scares me a touch. Just a touch. There’s a memory of the arms – flesh and blood ones – inside them, and there goes a shiver down my spine. But it’s all fine, really. There’s nothing sinister going on, and no horrible subtext lurking at all. What I was doing with my Labour Day holiday was all perfectly innocent. Nobody’s arms – not mine or anyone else’s – were or will be hurt! (I’m rather pleased with the title of the post, I have to say.)

What was I doing?
[…] Click to continue reading this post →

Big?

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On campus yesterday, I ran into a colleague I had not seen in a long time. She was with her daughter. She introduced us, saying, among other things, that Professor Johnson is “Big in Cosmology”.

I’ll admit that I giggled like a naughty schoolgirl for a longish, unprofessorial moment. It was sort of hard to explain, and would have derailed the conversation, so I did not try. Why was I giggling? Well, it is just that the field of cosmology (which, for the record, […] Click to continue reading this post →

Reconfiguring

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usc campusWell, it is the first day of the new semester here at USC, and of the new academic year. Whether I like it or not, everything changes today, in terms of my work patterns. I have to squeeze the sprawl of my research (recent posts about that here, here, here, and here) back into a more confined space to make room for other things. Chief among those is my Physics 151 class, where I teach about 90 freshmen (science and engineering majors) the ins and outs (but mostly the ins) of mechanics and thermodynamics. I’ll also be dealing with a number of service and outreach projects that I’ve had on hold for a few months, and, of course, I’ll be serving on a number of committees doing various things in the department and the university at large.

Am I ready? Not entirely. I’m not fully in the right frame of mind, it has to be said. The various research projects I was working on did not get as far as I would have liked, and I could benefit from more of the full-immersion mode that Summer affords in order to follow up lots of ideas and computations. Also, there are entire projects I did not even get to.

But you do what you can, and that’s all there is. I’ve been dumped into a weird time […] Click to continue reading this post →

Summary Strings

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I don’t know if you saw it, but I happened to catch the last two talks of the Strings 2008 conference, via live webcast. They were summary talks. Hirosi Ooguri did an excellent job of summarizing all the main themes in various talks during the conference, and the David Gross summed it all up, took stock of where we are, and where we aren’t, and looked forward. A sort of “state of the union” speech if you like. And the state is good. Very good indeed.

I found these two talks to be excellent, informative, and very interesting. I recommend them to people interested in research in strings and related topics. I can’t see a link to […] Click to continue reading this post →

Bit Like Watching The Olympics…

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(…but without the relentless parade of bikinis, happily.) What am I talking about? You can watch live over the web the proceedings of the Strings 2008 conference taking place at CERN. The official site is here, with links to the webcast, schedule, talk titles, and so forth. (Sorry I’m a … Click to continue reading this post →

Draw

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game of naughts and crosses, spotted in the bar/lobby of an Aspen hotel.I’ve been quiet here recently, I know. Was mostly working, thinking and reading on the weekend. Did not even go on a huge hike (although I did do a nice walk or two). Sometimes, on an evening, I go and read a novel in a bar. (I’m weird that way, I know.) I’ve not been going to the noisy bars full of yelling and the party crowd, but instead like to find a nice sofa in one of the bar/lobby areas of the nicer hotels. Great for reading, and the drink prices are merely extortionate, as opposed to just plain offensive in the more popular places. (Photo: a naughts and crosses game I spotted on a table in one such lobby.)

Well, it’s a draw so far in the battle with my equations and ideas, but I think I’m developing a stronger position. (From this you can deduce that I decided to stick with the same project and hold my ground and struggle on some more.) Perhaps the next […] Click to continue reading this post →

Humps

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Now playing: I’m Confessin’ (That I love You), Thelonious Monk [Solo Monk]

Well, I’m now beyond the halfway mark of my retreat and I’ve been on the one project all this time. I’ve made progress here and there, had some setbacks, and have got very stuck at times. It’s just one of those things with this sort of work. Par for the course.

humps in road warning sign, UKThere are times when you think that if you do just a bit more on the project, it’ll get over the hump, as it were, and then coast along. So far I worry that there may be simply an infinite set of equally spaced humps of similar height all the way down the road**, in that every now and again I discover a rather pretty little gem of a result that’s quite encouraging, but these gems don’t seem to have anything to do with each other. So it’s a little scattered gravel pit of gems as opposed to a lovely… Ok, cvj, enough with the gem metaphor.

Now playing: Totem Pole (Alt. take), Lee Morgan [The Sidewinder]

The issue here is whether I should jump ship and use the last of my quality time here […] Click to continue reading this post →

Tales From The Industry XXI – Another Go At An Einstein Film

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Well, since they’ve actually done a press release about it, I suppose I don’t have to be so coy as I was in the last post. This is about the film company I was doing some consulting work for on an interesting project with and interesting screen-writer.

The company is called Hero Pictures, and they have an interesting mission statement, and a rather splendid website (which I recommend… love the little hero guy) which tells you more. One of their projects is a film about Einstein. Working title is “The Private Lives of Albert Einstein”. They’ve bought the rights to a couple of books on him, brought in a screenwriter (see my thoughts on him and working with him in the previous post), Ron Bass, well known for his work on projects like Rain Man and The Joy Luck Club, Snow Falling on Cedars, among many other films.

It was fun to work with him on this, however briefly. He’s super sharp and gets the […] Click to continue reading this post →

On “Do-Overs”

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I love “do-overs”. Not because I want to change anything in particular about my life, but because they are so rare, and so interesting. On my way to Vancouver on Monday, I got to do one.

We (myself and the other passengers) boarded our flight at Denver. I usually get on the plane early, and so have the change to watch people go through their routines of boarding and all that entails. After that was all, the plane full of passengers waited for the plane to get ready, doors to close, and so forth. It did not happen. After a while, the pilot came on and explained that they were trying to fix the radio, and it would be another half an hour. So we waited. After another long while, the pilot came on and said that they did not expect that the radio would get fixed in a timely manner after all, and so they were going to try something else. We would “de-plane” (a word I hate by the way – what is wrong with the perfectly good word “disembark”?) and all make our way to another gate where eventually another plane would arrive, and we’d take that one. It would be exactly the same type of plane. We would keep our ticket stubs and just re-board an hour and a half later.

I wandered for a bit, found something not too repulsive to nibble on (seems to get harder and harder in some airports), was disappointed by the meagre bookstore once again, and otherwise killed some time. Then the boarding started again. A “do-over”. Everybody would be going back to the same seats, it would be exactly the […] Click to continue reading this post →

Sharing the Storm

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Here’s something I found rather unexpected. It all begins a little more than a year ago in Los Angeles. I was chatting with a friend, Aimee Bender, about our respective modes of work, and about how Summer fits into that in general. As you may know, Aimee’s a fiction writer, (and you may have picked up somewhere that I’m a theoretical physicist), and there are a lot of parallels to be found between professions that both involve lots of sitting around, crafting with symbols, folding fragments of inspiration together into larger nuggets, and so forth. So we chat about that from time to time.

A lot of how that works can be tied to the environment in which you do it, and so we got to talking about the long dry Summer in Los Angeles, with a particularly hot spell we were going through at the time we were talking. It affects how you work, what part of the day is most productive for you, and so forth. We agreed that a rather nice thunderstorm would be a good thing to have come along, even though that was highly improbable. Just the sound of a thunderstorm is a wonderful thing, and then there’s the relief it brings from the conditions before, and the smells in the air during and after. We carried on with the hot LA work cycle, stormless.

I left a week or two later for Aspen.

Shortly thereafter, Aspen went into a typical daily cycle of sunny for most of the day with a rainy downpour in the afternoon. Very refreshing. One of those days, that downpour turned into a long super-violent thunderstorm that lasted well into the […] Click to continue reading this post →

A Hop Over To Canada

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Well, as I said in the previous post, I’m leaving my hideaway/retreat mode and popping over to Vancouver for a short spell to help out at a Summer School. It’s the PIMS (Pacific Institute for Mathematical Sciences) Summer School on Particles, Fields, and Strings. I’m giving four lectures on some of the techniques in string theory that it helps to know in order to do some of the fun things we do to get at interesting physics (such as the topic of the post before). My title is something like “Perturbative and non-perturbative string theory”, and I’ve no clue what the level of the students really is, so goodness knows how far I will get in four one hour lectures. But it does not hurt to try. I’ll be laying the groundwork for several of the lecturers who will be talking about the more advanced stuff closer to their research work, and so I hope to at least help the students gain confidence with ideas and language that will show up all over the place in the two weeks following my presentations.

So what will I cover? Well, I’m going to tailor things to the responses of the students as […] Click to continue reading this post →

Black Hole Battles

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lenny susskind, kc coleSomehow, I only learned about this today, and it is already standby tickets only, but you never know. If you’re in LA and interested in a different kind of conversation, consider taking in the event (part of the Aloud series) at the downtown Los Angeles Central Library tomorrow night at 7:00pm. It’s between two friends and colleagues of mine, the science writer K C Cole and the scientist Lenny Susskind! The event is entitled, “The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics”, and presumably will be about Lenny’s reflections on some of the exciting squabbles over various important issues in black hole physics that took place (and still take place) in our field of physics. The above turns out to be (I just learned from a Google search) the title of a book he’s written, so you might be interested in it for your Summer (or other) reading.

Some of you may recall her really great conversation with Alan Alda that took place at USC earlier this year. I reported on it here. K C tends to run these sorts of […] Click to continue reading this post →