Author Archive for Clifford

Susskind and Cole on C-Span2

I just happened (while flicking channels to try to avoid the naked mud-wrestling, oops, women’s beach volleyball*) to run into a broadcast of the Los Angeles Public Library conversation between KC Cole and Lenny Susskind about the amusingly titled “Black Hole War” between him and Stephen Hawking and the circle of ideas and theories connected with all of that wonderful area of physics. (I blogged about it here and here.) It looks like it was really good (I just caught some of the questions and answer Continue reading ‘Susskind and Cole on C-Span2′

Art Walk

Of course, being back in the city means getting back into the routine of enjoying all the fantastic things to do here during a hot Summer. There are too many things to choose from, but one of my favourites is the Downtown Art Walk. (Previous post on it here.) It’s the second Thursday of every month. Strangely, it is still not very well known, even though it is one of the best activities I can think of to do to blow off steam at the end of the day. Or for the whole day. The art is all over the place, in that there is good stuff mixed in with a lot of, uh, other stuff, and so it is fun to hunt for it. Two reliable highlights for me, and maybe the most fun of all, are (1) the fact that these galleries are housed in lots of fantastic old and decayed spaces in old buildings in the core of Los Angeles’ centre. In fact, I often find myself looking at and enjoying the spaces more than the art. (2) The people. Representatives of every Los Angeles archetype, and several more besides, can be found wandering the streets of downtown during the Art Walk… and squeezing into the galleries and sampling the free (or cheap) wine, and generally rubbing shoulders with everyone else. How often do you get a wider cross section of Angelenos out of their cars and, horror, walking and, horror of horrors, mingling with others? Worth going just for that. There’s a brief history of it here, written by Bert Green, (hey, I did not know that I’ve been coming to it almost since it started) and the website for the Art Walk is here.

I wandered around some of my favourite galleries and studios, looking at the art, people, buildings, and spaces. Everything changes so much between monthly events and so it is always a pleasant surprise to learn which gallery will interest me most on Continue reading ‘Art Walk’

Breathing

faith machine by robert reynolds

This is a piece by Robert Reynolds, currently on display at the Bert Green Fine Art Gallery in downtown LA. It is called Faith Machine. You’ll have to ask him what he’s trying to depict (Bert, the gallery owner, gave me a bit of a run down, but I don’t want to garble it), but I loved it simply because it’s a working, moving machine, and those bellows are just wonderful, with a motor turning at the back driving a piston that pumps the bellows, blowing smoke (or something) up through the seats (which are actually old school seats). There are some interesting messages in there, evidently, and I’ll leave you to work out your own angles.

I found the sound of the pumping bellows and turning wheel to be very biological in its effect, and quite hypnotic. I made a short video and you can view it below. (I hope that Continue reading ‘Breathing’

Some Science With Your Politics

Well, there’s all sorts of rhetoric on all various matters from the main presidential candidates, and there’s still a long way to go until November. It’s nice to hear a bit of chatter about global warming, gas prices, research into alternative fuels, cars with higher efficiency, and other issues that have a high degree of science playing a role in shaping our decisions about our policies and actions, in all aspects of society. (Although there is some occasional mention at some points at state level, it would be nice to hear a lot more about concerted thoughts about public transportation infrastructure, but perhaps that’s just way too much to ask in a society still rather naively obsessed with individualism at all costs.)

So what are the official positions of the candidates on science, across the board? Well, Continue reading ‘Some Science With Your Politics’

First Fig Fun

figs and cheeseWell, for some of this time I’ve been away I’ve been a bit worried about the fig tree. Why? Well, as I was leaving town, it was hugely laden with fruit that looked rather like they were going to peak while I was away. I certainly did not want that to happen since the squirrels and other critters would have a field day (or several!), and get used to the idea that they had full access to the tree with no dissent from me.

Well, it turns out that the tree held out longer than it seemed that it would, so while the peak came while I was away, it was only for a week or so.

So I lost several figs, and had to deal with the sticky, frenzied-ant-infused mess left Continue reading ‘First Fig Fun’

A Bad Mother—(Shut Your Mouth!)

isaac hayesWell, you’ve heard the news (and I’m sure I’m not the first to use the above title in this context) about Isaac Hayes, I imagine. He died yesterday. You’ll almost certainly have heard the theme from Shaft, if nothing else from his work. I grew up with a lot of that music all around me, back in the 70s, so I have a lot of fond memories that start flowing whenever I hear that theme, and a number of other pieces by him.

His music helped form the foundation for so much of what was to come - disco, soul, and related forms, principally. He’ll be missed, both as the musician and (of course) as South Park’s much loved character, Chef.

NPR has a report and tribute today, here (audio and transcript), and turn up the speakers, click on the following, and dance around a bit in celebration of Isaac Hayes!
Continue reading ‘A Bad Mother—(Shut Your Mouth!)

E.Coli Stories

e.coli image from http://www.foodpoisonblog.com/Not long ago, science writer Carl Zimmer spoke at the Zócalo series. He was talking about the subject of his new book, E. Coli, and wove a lovely story of how the E. Coli have taught us so much about life over the years, and how they continue to do so. So much of what we know about the workings of DNA, for example, came down to studies of a very clear model system, and E.Coli was the system chosen by Biologists (and Physicists interested in fundamental issues surrounding the nature of life, DNA, etc.) (Image left from foodpoisonblog.)

The talk, for a general audience, is highly informative. It is only about an hour long, and worth your time. It was broadcast last night, and I found it rather good indeed. I Continue reading ‘E.Coli Stories’

On The Road

cat_on_the_road

Continue reading ‘On The Road’

Beaming With Anticipation

CERN Control CentreI just learned from the US/LHC blogs that the first circulating beam of the Large Hadron Collider will be attempted on September 10th. The press release is here, and is from where I stole the image (left) of the fancy-looking CERN Control Centre. This is so exciting! It’s not long now for possible new physics (some months or so beyond that date, or early 2009) from this long, long awaited machine. In the meantime, lots of other warm-up test will be going on too. Link here for more.

For more on the LHC and why we care, see several older posts here (this one links to lots of things), including the ones pointing to the nice NPR pieces (here, and here). Be sure to watch the excellent videos showing you the inside of one of the detectors (links Continue reading ‘Beaming With Anticipation’

Not a Free Lunch

Yesterday saw a mass desertion for a while here at the Aspen Center for Physics. Howie Haber (UCSC) organized a large group (twenty-two) of participants (and some of their guests) of the program entitled “LHC: Beyond the Standard Model Signals in a QCD Environment” (info here), to go for a group lunch at the excellent Pine Creek Cookhouse, 12 miles away up Castle Creek Road. And, I should mention, 1700 or so feet up. The latter is significant since about two thirds of us, led by Howie, cycled up there! It takes a while (times ranged from 1 hr 20 minutes to about 30 - 40 minutes more than that), and there are about two or three major long, punishing hills to deal with, but it was worth it!

Here are some (not all) of the cyclists at the destination (restaurant is a low-slung cabin-style affair out of shot to the right). Howie, our organizer, is in the middle at the front. (Click for larger view):

Lunchtime ride up to Pine Creek Cookhouse from Aspen Center for Physics

(Er, for the record, I’m slightly embarrassed by wearing socks with my sport sandals - a personal no-no - but I wanted to protect my feet from 12 miles of pedalling friction, so made an exception.)

Here are some random shots of happy arrivals (click each for larger):
Continue reading ‘Not a Free Lunch’

Experiment IV

Ok. Time for a bit of fun, or something. It’s rainy here, and I’m waiting for things to dry out before I go home. I’m between tasks, and I’m woozy from that extra beer at the weekly picnic (thanks, Ben!) so that’s my excuse. Not that I’ve ever needed one.

The other day while hiking I found myself singing Kate Bush songs. No, really. I get into a Kate Bush mood sometimes. Deal with it! Anyway, “Experiment IV” sort of stuck in my head and went around several times. It’s all about a science experiment, even if only a slightly naive exploration of how the military exploit scientific research. I simply love the way she made the phrases “We only know in theory what we are doing” and “We recorded it and put it into our machine” work with the rhythm and melody lines. Then I remembered, and checked on YouTube, how she’d construct these really excellent videos which were miniature movies, telling a little story, at least two of them (this song, and “Cloudbusting”) involving scientists.

Now of course, the scientists were the usual men-in-white-coats scientists (however, the image right is explained below). Kate Bush, Experiment IV performance (still)I know I go on a lot about trying to have in the media a wider variety of images of what scientists can look like, but that does not mean that I don’t like things that sometimes have the old chestnuts. Cloudbusting has Donald Sutherland as the scientist-father-figure, and Experiment IV has a similar figure (played by someone I don’t recognize) as the scientist whose work is exploited. There are a number of actors in supporting scientist roles too - look out for (I think) a Continue reading ‘Experiment IV’

Pink Legs

Pink variant of a columbine, I believe. I love the shape of this flower. (Click for larger view.) I don’t know what it is called, but it is morphologically very similar to a Columbine.

The colour is different and it does not seem to open up as much, but I bet they’re cousins. This is also confirmed by a similarity in leaf shape.

I’ve been spotting them occasionally up at around 10,000 ft and above in these Aspen surrounds, in very small quantities.

Somehow their relative rarity (at least here and now) makes them more alluring to me.

-cvj

Draw

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 Continue reading ‘Draw’

Quantum Black Holes - Why Worry?

susskind_by_matthew_black for LA TimesWell, you may not have gone to the chat between K C Cole and Leonard Susskind that I mentioned a while ago at the LA Central Library downtown. I couldn’t make it either, being away at the Aspen Center for Physics. I expect it was good. Anyway, I found a little bit of a report on the conversation, done by reporter John Johnson for the LA Times. It is here. (Clickable image of Susskind to the right is by Matthew Black, for the LA Times.)

It gives you some of the simply-stated reasons as to why there was a big argument between Stephen Hawking and Leonard Susskind in the first place (and between several other physicists too… there are hosts of people working on these things, and it took hosts of people to sort it out to where we are now, not just those two, giants though they are). I recommend having a look, as it is especially for the lay-person, and will give you a good idea of what the fuss is about.

You can also see a little bit about his new book on the subject and a link to a video interview with Brian Cox (the physicist, not the actor) at the LA Times blogs here. There are also links to his Stanford continuing education course on quantum mechanics, including the online lectures you can view at your convenience. What a resource!

You might wonder why we care about all this, since currently the only way we know for sure to make black holes in the universe (astrophysical processes making stellar black Continue reading ‘Quantum Black Holes - Why Worry?’

For Some, The Dark Side

solar_eclipse_010808Don’t forget that there is a total solar eclipse tomorrow. Been wondering where the moon’s been, and why you’ve been having all those lovely clear dark nights perfect for star-gazing? Well, the moon’s been busy preparing for one of its big acts. It’ll pop in front of the sun and bring a little darkness to some regions during the day tomorrow. Put differently, the dark side of the moon will be stealing some of our rays on August 1st.

Who will get to see it? Well, full totality will be available mostly for the “midnight sun” Continue reading ‘For Some, The Dark Side’

Humps

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 Continue reading ‘Humps’

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

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 Continue reading ‘Tales From The Industry XXI - Another Go At An Einstein Film’

Two!

Asymptotia's Second Anniversary!Well, you know I almost missed it: Asymptotia, this little blog that you come to read from time to time, is two years old today! It has been a pleasure and an honour being part of this community we’ve formed, made up of you the reader and maybe sometime commenter, and me tossing up a few things to look at, consider, laugh at, and/or discuss from time to time. I really enjoy the kind of connections that are made, and seeing people brought together (both on- and off- line) using Asymptotia as a focal point. Have a look at what I said on this date last year, and in the inaugural post.

For those of you who are not regulars, assuming you’ve already read the about page, let me mention that I think of this blog as a bit like a gathering (a party, if you will) in a comfortable home, with people in several rooms carrying out (or just listening to) conversations of various sorts. Some rooms just have things to look at. Some people Continue reading ‘Two!’

It’s Not A Superhero Movie

Ok. I suppose I ought to say something about “The Dark Knight”, since a lot of people are expecting me to, and well, I’d like to. Of the many (too many) big films of the genre that have come out this Summer, it is the one I’ve actually been waiting for, with high expectations, based on the excellent work they (Christopher Nolan, Christian Bale, Gary Oldman, etc) did on Batman Begins. So, following is my verdict, after going to see it on opening night at a regrettably substandard theatre due to not being in Los Angeles.

I thought it was wonderful to see a big Summer blockbuster that is so successful that is entirely about ideas. Whether you think you have any interest in the genre (and see below), you should consider supporting it and going to see it on that fact alone, since it might encourage the big studios to green light to more projects that engage your brain. It is about ideas - the consequences of our actions, the use of power, the fabric of a society and what motivates us to behave well or badly toward our fellow citizens. In pretty much every scene. And it is not done in an unfortunately preachy and naively over-simplistic way that I think was the case for the highly flawed film version of “V For Vendetta” of a few years back.

Finally, the (big headline) movies of the graphic novels and comics have caught up with what the actual graphic novels and comics did ever so long ago - transcend the genre. It is not a superhero movie. It’s a movie about highly conflicted moral questions Continue reading ‘It’s Not A Superhero Movie’

On “Do-Overs”

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 Continue reading ‘On “Do-Overs”’

Sharing the Storm

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 Continue reading ‘Sharing the Storm’

Delicate Star

dandelion seed sphere

Dandelion seeds just outside my door. (Click for larger view.) Continue reading ‘Delicate Star’

A Hop Over To Canada

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 Continue reading ‘A Hop Over To Canada’

Atoms and Strings in the Laboratory?

depiction of lithium trap from the Kastler Brossel lab in france

A depiction of a lithium trap from the Kastler Brossel laboratory, in France. Details here.

[Despite appearances, I did not choose the music in what is to follow. I just put on iTunes set to random, and started typing, reporting on what was playing as I went along. Nevertheless, there were some nice resonances.]

Now playing: Mr Day, John Coltrane.

So. I must put the Aspen time on hold for a short while, as I promised to give four lectures in Vancouver starting tomorrow. While I sit here in a lounge in Denver at 8:00am, wondering why I booked a 7:00am flight out of Aspen, and also wondering exactly what is in this muffin that I picked up to have with the (rather good) tea they have here this morning, I thought I’d tell you about a little bit of really nice physics that’s going on in the neighbourhoood of my world. Since I’m too cheap and too disinterested to pay for a connection to the web, this’ll only get uploaded quite a bit later when I get a free hookup. (This is a bit more technical in places than usual. Please don’t give up too easily. Oh, and you might have to read some things I point to from earlier to get everything I’m saying - I’m not one for endless repeating myself I’m afraid.)

You can think of this as another story in the line of development I’ve been pushing (and telling people about here and elsewhere) for many years now. Applications of string theory to a broader range of physics areas than the popular discussions of the topic seem to touch upon. I told you last year about the exciting work going on in understanding properties of new phases of nuclear matter being unlocked at the Brookhaven experiment RHIC (colliding heavy nuclei together to create a sort of hot quark-gluon soup). That work continues. This new work pertains to experiments as well, and this time, these are closer to the human scale bench top experiments we all get misty-eyed over (ok, I do, maybe no-one else). It is super-cute stuff. I should Continue reading ‘Atoms and Strings in the Laboratory?’

Recovery Time

Today’s going to be a slow day, with a bit of pottering about town (groceries, new novel), sitting at home (laundry, reading, writing), and working on some physics things here and there. It’ll be good to slow down. I went on another long hike yesterday, back in my more usual solitary mode. Last week’s to Willow (see a couple of earlier posts) was with my friend and colleague Albion Lawrence who I’d not seen for a long time, and so we spent a very pleasant time catching up on things (mostly sharing about books and film, as we do) as we walked.

on_west_maroon_trailYesterday’s hike, following (initially) the West Maroon trail, was taken up with conversations with myself, both internal and external, and that’s something I enjoy a great deal. I thought I’d spend a lot of time thinking over various issues in physics that I’ve been puzzling over in my work, or that I’d learned about from various conversations and seminars while here at the Center. But I did not, surprisingly. Or not much. It was a very physics-free day, even though I was out there struggling along in the West Maroon area for over five hours (out and back to the bus).

Part of this might be because due to the large amount of snow on the ground in places, I lost the trail, and so spent a lot of time following the river trying to pick it up Continue reading ‘Recovery Time’

Chiropteral Mirror Symmetry?

Spurred by the previous post showing M-theory’s possible relation to matters Chiropteral, Joe Polchinski (who I think, in 1995 or 1996, first drew the diagram that I messed with in that post) emailed me* to say that there is a quite striking appearance of batman-ology in the string theory literature. It’s from one of the classic Mirror Symmetry papers of 1990 by Candelas, De La Ossa, Green, and Parkes, “An Exactly soluble superconformal theory from a mirror pair of Calabi-Yau manifolds.” (you can find it via here). Here it is:

batman ish mirror symmetry diagram

What is this? It has to do with spaces in string theory called “Calabi-Yau manifolds”, which are important (in some approaches) as starting points for constructing models Continue reading ‘Chiropteral Mirror Symmetry?’

Chiropteral Duality

chiropteral duality

-cvj

Continue reading ‘Chiropteral Duality’

Crunchy

crunchy bit of mountain near willow pass

Very crunchy bit of mountain, on the final approach to the overlook of Willow Lake this weekend. It’s like a reward of a giant piece of Cadbury’s Flake after a long hike over Continue reading ‘Crunchy’

Black Hole Battles

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 Continue reading ‘Black Hole Battles’

On Good Ideas

A commenter, slim potato, implicitly asked a really good question earlier. It was a working in a notebook comment on a post I did yesterday about my struggles with a computation I was working on. I gave an answer, but since I know that a lot of readers don’t read the comments, and because one of the missions of this blog is to give a window on what scientists such as myself do and (importantly) how we do it, I thought I’d elevate the comment and my response into a post. Feel free to add your own thoughts to it in the comments, either as a non-scientist, a scientist, a specialist from another field, or other.

slim wrote:

I would have assumed that most of your time when working on a paper was involved on catching good ideas, not getting muddled with conventions and calculations.

cvj wrote:

Hi,

Thanks. That’s a common misunderstanding of what we do. What makes a field of physical science like physics work is computations - all of that business with calculations (including checking that your computations conventions are internally consistent) is vital to the field.

Frankly, “Good Ideas” are a dime a dozen. Anyone in my field ought to be able to think of at least six of them before breakfast. What makes a good idea go Continue reading ‘On Good Ideas’

Once More Unto The Breach…

Ugh. A night of computing (while making and eating dinner and recuperating from a strange day-long headache - dehydration? side effects from the big hike the day before?) and muttering to myself at various points left me in a state of confusion last night. I went to bed tired and confused after getting into a muddle and realizing that I’d been probably mixing conventions in parts of my computations over the last few days, leaving me with a flipping minus sign in a result. No, I really mean “flipping”, since sometimes a 1/16 was -1/16, and sometimes that represents a physical truth and other times it represents a computational mistake - and I got confused as to which was which. Ugh.

All of this was coupled with occasionally wandering outside into the late night air filled with hungry insects in order to seek the fragment of wireless signal (I accidentally discovered it nearby on the weekend) in order to download the odd reference to check an idea or a fact. I’d have a few minutes before the bugs would find me and start to chew (I suffer from being particularly tasty to insect life - always the first person to be multiply bitten at any outdoor evening gathering), at which point I’d have snagged the download of the paper and can then run back in to the safety of indoors, flapping my arms around my head like a madman. It is an amusing dance, since I can find the Continue reading ‘Once More Unto The Breach…’

Yellow Lamps

I don’t know what they’re called [update: glacier lillies*], but they were so lovely, I thought I’d share:

yellow flowers on way to buckskin and willow

They look a lot like little street lamps, if you look closely, having a lovely curve to their Continue reading ‘Yellow Lamps’

UK Physics Education and the Olympiad

You might be interested in this for all sorts of reasons, whether you’ve interest in science education in the UK or not. It relates to similar issues elsewhere, such as the USA. It’s a rather good (if a bit depressing) report on physics education in the UK, and how the UK does in the international Physics Olympiad compared to other countries. There’s a visit to the “training camp” for the Olympiad, and interviews with students and teachers. Have a listen - it is only nine minutes long.

The UK does not do very well, to cut to the chase. Not very well at all. China is the powerhouse, with the US and Iran also being very good. Notably, all three countries invest heavily in serious training and educational programs for the Olympiad, and it is also notable that Iran has very strong female representation.

More worrying, perhaps, is the decline of students’ knowledge of physics overall, since Continue reading ‘UK Physics Education and the Olympiad’

Some Saturday Shopping

Well, of course I made it to the Aspen farmer’s market. Why would I pass up the opportunity to pay $3.50 a pound for assorted squashes? (And that was some of the more reasonably priced stuff…) I like to support these things, and mingle with the people, so I go anyway. Also some of it is very good, even though there are very few actual fresh produce vendors compared to the farmer’s markets I’m used to in Los Angeles. (This latter fact is not entirely traceable, I think, to having a smaller target population, or being at high elevation.) (Of course there’s a lot of selling of knick-knacks of various sorts of the tourists…. you know: hand carved dual dog bowls with Western outdoor themes and so forth…)

Here’s the (half-folded) bike with some of my findings:

saturday pickings from the market in Aspen

You can get a closeup on the basket by clicking the image on the right. Some apricots, Continue reading ‘Some Saturday Shopping’

Altered Saturday Plans

river in aspenWell, I was supposed to go for an early morning hike to start off the day, but it has not happened. It was just meant to be a short one, since I’m staying in a little cabin out of town not too far from the start of a lovely trail. Then I was to go to the farmer’s market (more on that later) and then after lunch go to pick up my ticket for the chamber music concert I’m to go to this afternoon. (I say “pick up” and not “buy” since I was the lucky winner (well, one of them) of a little ticket lottery at the Aspen Center for Physics for tickets to concerts in the neighbouring Aspen Music Festival. Hurrah!)

Well, the hike did not happen. Why? Well, at about 6:30pm yesterday while scribbling fragments of equations and furrowing my brow while sitting in a cafe in town (a change of venue after a day at the Center(re) sitting in the office, you see), I began to realize that a computation I was stuck on might actually be becoming unstuck! Various parts Continue reading ‘Altered Saturday Plans’

Science Cartoon Contest!

The Union of Concerned Scientists is running a science cartoon contest* (mostly political cartoons, really), and would love you to vote. Here’s one:

cartoon from the Union of Concerned Scientists 2008 contest
Continue reading ‘Science Cartoon Contest!’

Although No News is Good News…

…(as the saying goes) it’s nice to get the real thing from time to time.

I’m almost fully in retreat mode now, being back at Aspen and settled in to my office at the Center and so forth. It’s good to see some familiar faces and catch up a little on physics news, and gossip (still waiting for some good juicy stuff there). I’ve settled into my accommodation (which on the plus side has no wireless or other web connection, but on the minus has HBO, which I shall have to studiously avoid), and have done a quick cycle around town (brought the Brompton again of course) to check that everything is in order. So by mid-afternoon on day one, yesterday, I was settling into my project(s). All good.

The good news of the title? Well, usually when someone contacts me about my book, Continue reading ‘Although No News is Good News…’

Stuff

Spent Sunday intensely preparing to leave on a trip, starting at 6:30am, with few breaks. This involved time spent preparing the garden to look after itself (I’d added several plants over the last six months that were not on the drip system), preparing various rooms to be more easily traversable for some contractors to do some plumbing and other work while I’m away, doing endless bits of paperwork and related things that I don’t want to deal with while I am on retreat thinking (almost) exclusively about physics, and so forth. At 3:30pm, in a panic I began the run around the house grabbing all the stuff I wanted to take with me, and going down to storage to bring up the two large bags I always take with me to Aspen.

hard case for the bromptonStuff includes notebooks, computer, hiking boots, bike, helmet, books, water bottles, drawing equipment, raincoat, umbrella, sketchbooks, shorts, t-shirts, underwear (yes, I did fly to a workshop one time and discover that I’d forgotten all my underwear…), various cables for charging various bits of consumer electronics, consumer electronics, shopping bag, small hiking pack, the pens I like to write with, the pencils I like to draw with, good tea, medium hiking pack, cloves, black peppercorns, good sea salt, whole nutmeg and a big stick of cinnamon (sort of hard to explain why these last several are important unless you’re also into a certain sort of cooking, and are familiar with Continue reading ‘Stuff’

Fourth Thoughts

Have a Fantastic Fourth of July, to everyone who is celebrating it!

fantastic four promotional skywriting over LA on the July 2005

It’s been several days since my last confession. Sorry about the silence. I’m honestly not sure exactly what I’ve been doing, since it has been a mostly fragmented set of things, coupled with a generally down mood of introspection over matters personal. Hmm… So nothing new there.

Physics-wise I’m a bit stuck. Not on a particular project this time, but stuck on Continue reading ‘Fourth Thoughts’

Launch of an Idea

150 years ago today, Charles Darwin presented his theory of evolution to a group of his peers for the first time. It was read at the Linnean Society, and the reading didn’t really rock the world. That came later when Darwin published the Origin of Species later on. either way, it is quite an anniversary today, since evolution is without question one of the single most important scientific discoveries ever made about how our world works. (Have a look at my earlier post on the Darwin Online Project, by the way. Lots to see there.)

Actually, Wallace had the idea some 20 years before Darwin, it is said, but few remember him. A recent NPR piece quotes the author David Quammen (”The Reluctant Mr Darwin”):

Continue reading ‘Launch of an Idea’