Another Approach?

No, it’s not my solution to things (you know, when patient, tiring, endless, circular discussion and explaining that it is work in progress does nothing to stop the whining of those who’ve made up their mind in advance…) but it certainly makes me laugh out loud! Enjoy:

arguing with a string theorist by abstruse goose

(Click to go to larger version.)

Taken from Abstruse Goose, which is hilarious!* This follows on nicely from Click to continue reading this post

So What Is String Theory, Anyway?

The usual answer you’ll get from the person on the street (as it were) includes lots of nice words about wiggling strings that look like particles, and so forth, and that’s fine. However, the [informed] next level answer, when you’ve worked enough in the field, is that we don’t know. I’ve told you why (at least in part) in previous posts and so I’ll let you read them. We’re still working on it.

While we work, we’ve learned that it is a quite marvellous thing (from the bits of it we’ve come to grips with) that is teaching us a lot about all kinds of physics, and mathematics too. Some of this may be good for describing things about Nature, and we’re still working out lots of that (although see some of the exciting things I’ve been talking about in my previous post and the links therein).

So what do we put on the T-shirt? (You know, the analogue of Maxwell’s equations for electromagnetism – light, etc – that every physics undergrad likes to have on their T-shirt). Well, we don’t know yet.

polchinski what is string theory

But that’s all my opinion. Every now and again it is good to hear from one of the masters about what they think of string theory*, and what it is and so forth. Happily, Joe Polchinski has been known to agree to stand up and give an exposition on this Click to continue reading this post

Brainstorming

presentation preparation in the sunI had quite a marvellous brainstorming session today. You’ll recall I was preparing a presentation for the February 15th symposium at the AAAS meeting the other day. Well, all of us concerned (the four of us presenting as well as various Brookhaven staff who will take part in the symposium discussion as well) got together over the phone for a teleconference today. It took almost three hours (but happily I was sitting in the sunshine while doing it, as you can see). We wanted to chat about the distribution of ideas and results that will be presented.

There are four of us presenting at the event, with only a short time each to get across some of the key ideas and so we need to make sure that we don’t do too much Click to continue reading this post

NSF and NSFW

I’m sure there have been times when you received that message from the National Science Foundation saying that your grant application has been turned down, and in disappointment you’ve muttered something like “…bunch of W*nkers!” before taking a deep breath and moving on.

Right?

Well, now it seems it is official! See this story on MSNBC*, which starts:

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Categorically Not! – Dark Matters

categorically not! presenters feb 1st 2009

(Categorically Not! presenters and performers on 1st Feb. 2009)

The next Categorically Not! is on Sunday February 1st. The Categorically Not! series of events that are held at the Santa Monica Art Studios, (with occasional exceptions). It’s a series – started and run by science writer K. C. Cole – of fun and informative conversations deliberately ignoring the traditional boundaries between art, science, humanities, and other subjects. I strongly encourage you to come to them if you’re in the area. Here is the website that describes past ones, and upcoming ones. See also the links at the end of the post for some announcements and descriptions (and even video) of previous events.

The theme this month is Dark Matters. Here’s the description from K C Cole:

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The Keeling Curve

keeling curveToday on NPR’s Morning Edition they played a piece by Madeline Brand that aired in 2007 about the Keeling curve, and the man behind the curve, Charles David Keeling. As you may know, the Keeling curve (above) is a striking demonstration of the steady increase in the concentration of carbon dioxide in the atmosphere, as measured from one location (on top of Mauna Loa in Hawaii) by one very simple method over almost 50 years.

It is a lovely story of dedication and determination that resulted in a simple, striking, Click to continue reading this post

Uncommon Conversations

college commons logo smallI almost forgot to mention that tonight marks the launch of the series of events called the College Commons here at USC. Here’s a news story about the programme. This academic year, I’ve been working on the committee working on shaping the ideas that have come up from the faculty (I had promised to tell you more about this), and we’ve announced the short Spring programme, which you can see here.

There is a featured part celebrating 1859:

Where do ideas come from, and how far do they travel? One hundred and fifty years ago, the astonishing year of 1859 saw not only the publication of Charles Darwin’s The Origin of Species, but such pioneering works as John Stuart Mill’s On Liberty, Charles Dickens’s A Tale of Two Cities, Karl Marx’s Critique of Political Economy, and Richard Wagner’s first version of Tristan and Isolde. This year also marked amazing advances in travel and communications, the first battles prefiguring the Civil War and the first trapeze act performed in Paris. Can we imagine the world 150 years from now, and imagine the place our ideas will have in it? Scholars from biology, anthropology, physics, literature, history, and gender studies, as well as poets and artists, will explore these questions together this spring.

I hope there’ll be a lot of participation in the events (I’ll say more on this later). Tonight has a free movie, Master and Commander (so there’s a reason to go, right Click to continue reading this post

Preparation

Yes, I’ve been a bit quiet of late, I know. I’ve so many things on, both professional and personal that it sometimes keeps me occupied from when I wake up just before sunrise right through to falling asleep a bit after midnight. And yes I know that means I’ve been not getting the traditional full nights of sleep, but if my body insists on getting up at 5:30am, who am I to resist? I thought it was due to jetlag from the trip a couple of weeks ago, but it seems to have taken. I don’t mind too much since watching the light change as the sun rises is a marvellous way to start the day.

clifford johnson preparing slides at the boardAmong the things I’m up to (yesterday and today so far) is a strip-down-and-redesign of a short talk for an exciting symposium that is coming up in a few weeks in Chicago. The American Association for the Advancement of Science is having their big annual shindig there (apparently the biggest science conference in the world) and there will be a number of addresses, plenary talks, and keynote speakers and the like (including Al Gore, by the way), and also several sessions of symposia and other presentations on various topics.

While slightly annoyed at the fact that one major day of the conference is on Valentine’s day (which means I’ll have to be out of town on just the day that maybe, just maybe, on the off-chance, you know – if the universe sneezes or something, somebody might want me to be their Valentine…*), I was looking at that day’s schedule and it caught my eye that there’ll be a session (with several presenters) entitled “The Science of Kissing”, and three hours long, no less:

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Love Burns

It was Burns’ night last night, and I do love hearing his work read out loud. It is quite wonderful to read too. It’s his 250th birthday (Hmmm… something else to add to the year of celebrations of big anniversaries along with Darwin and Galileo). One of my favourites, which you possibly know, is the following (reproduced here in tribute):


A Red, Red Rose
Robert Burns. (1759–1796)

O MY Luve ‘s like a red, red rose
That ‘s newly sprung in June:
O my Luve ‘s like the melodie
That’s sweetly play’d in tune!

As fair art thou, my bonnie lass,
So deep in luve am I:
And I will luve thee still, my dear,
Till a’ the seas gang dry:

Till a’ the seas gang dry, my dear,
And the rocks melt wi’ the sun;
I will luve thee still, my dear,
While the sands o’ life shall run.

And fare thee weel, my only Luve,
And fare thee weel a while!
And I will come again, my Luve,
Tho’ it were ten thousand mile.

Now go to NPR and listen to Alison Jones read it out quite wonderfully, after having a Click to continue reading this post

Happy Chinese New Year!

(Somehow I forgot to hit “publish” on this post and the next one yesterday, and then have been distracted all day today… so apologies for the lateness…)

Wishing everyone (especially all my friends far and near who celebrate it):

Happy Chinese New Year!

-cvj

The Hat

Here’s a strong clue that I’m supposed to be working on writing slides for an important presentation:

Albert Einstein in Aretha Franklin s Inauguration Hat

Yes. I’ve been playing with photoshop. What’s the story? Well, I noticed that there is a facebook page for Aretha Franklin’s wonderful Inauguration hat. You know the one. The page has a huge number of fans already, growing at a rate of something like 200 every ten minutes (when I last looked). People are adding photos of themselves, their pets, and other objects, all wearing the hat. It’s great!

So I, rather than settling down to design those slides I’ve been meaning to get to for the last few hours, thought I’d join in the facebook fun! I could not resist sneaking Click to continue reading this post

Hope

Hope. This word has been used a lot in the last year or more. Sometimes it felt to me like it was overused, but now that the dust has settled, I think I’m quite sure that it is a good word to describe where we are, or what we have. Beginning early today, there will be a new President of the United States, Barack Obama. He’ll be bringing in a whole new regime that seems, given what we’ve seen so far with the work of the transition team and the various appointments to key positions, determined to do some truly good things. (See several related posts listed below.) There’ll be several huge obstacles to fulfilling the promise and potential of the new regime, some known, and some unknown. It’ll be hard to firmly move forward, but it is hugely encouraging to see the looks of delight and joy on people’s faces during these days of celebration, and to hear about their engagement with the idea that we can pull together and move forward on so many fronts on so many vital issues. We don’t know what will come to pass, but one thing we do know is that there is a marvellous window of opportunity. There is Hope.

Since the election result on the night of 4th November 2008, with all that had been achieved and overcome still fresh in the air, right up until today, there’s actually been a rather fitting song ringing in my head when I think about all of this. I find the chorus from the song “I Live In Hope”, by a musician friend of mine, Libby Lavella (you may recall her from posts here and here) extremely evocative of the mood. With Click to continue reading this post

Weinberg on BCS

For some reason I don’t understand, I occasionally get a copy of some random (as far as I can tell) issue the International Journal of Modern Physics A in the post. It just arrives. The people at World Scientific are presumably hoping I’ll get hooked by it and take out a personal subscription or something. Not sure. Well, it has not happened yet (just as it did not with the unsolicited regular arrivals of Angeleno a while back). But you never know.

Anyway, before putting the one that arrived recently on to my shelf (I can’t easily throw things like that away… it’s a problem, I know) I glanced through the contents to see if there were clues as to why this one was sent to me. I found no obvious ones, but the very first article caught my eye. It was a rather good essay by Steven Weinberg (1979 Nobel Prize in Physics) on BCS (J Bardeen, L N Cooper and J R Schrieffer – No, nothing to do with College Football’s BCS.) theory of superconductivity and the importance of the idea of spontaneously broken symmetry in condensed matter physics and then in particle physics (see last year’s Physics Nobel, by the way). I thought I’d point it out to you, since it is rather nicely written and very instructive (whether or not you’re already familiar with the phenomenon/idea).

He begins with some overstatement, however. He expounds upon the difference between particle physicists and condensed matter physicists and although it is amusingly written in parts (I assume intentionally) he really over-eggs the pudding, in my opinion. Look at this:
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