Spotted in Griffith Park on a quick hike: I’m thinking that this is a variety of bindweed (but see below*). I’m not sure though. Thoughts anyone? (Convolvulus sepium, that is.) Bindweed is a sort of wild morning glory, and this really
Well, yesterday I handed in my grade sheets for my courses, so I’ve finished all undergraduate teaching duties for the calendar year! Time now to turn to all those things that have been piling up waiting to be done. Eventually, this will mean research, but in between there are various tasks, from writing letters of recommendation to reviewing grants, fellowship applications, and more.
Mostly, I just want to disappear for a while. Leave the planet for a bit and go walkabout, like I did last year’s holiday season. That might happen, but I have to be partly available for a little while for a number of duties. Either way, I need to get out of the old mode, and into the more contemplative one. In order to begin the resetting, I decided to hide away from campus entirely and in the afternoon visit one of my other offices… the beach.
I had some errands to run out in Santa Monica, such as picking up my boots from that great boot repair place (where I’d dropped them off to get stretched a bit… the miracle repair I told you about before had resulted in them a bit stiff and slightly tighter on the slopes, and so I thought I’d try a stretching of a few days), and so this fit well. I figured I’d just stay there until the evening.
I have a love-hate relationship with Santa Monica. It sometimes annoys me a lot, and seems to be a place that is so squeaky clean that all the flavour of real life has been drained out of it, to be replaced by mostly smugness…. but at other times, I’m very happy with it, since it has a number of gems that I like a lot.
If the truth be told, one of the main reasons that I like to go over there is the tarts. […] Click to continue reading this post
For those who know what these refer to*: …go here to enjoy more! -cvj
Yes, in other words, tonight and tomorrow night are the maximum event rates for the Geminids, the meteor shower that originates from the direction of the constellation Gemini. From Gary Kronk’s site, I borrowed this diagram that shows roughly where to look:
[image]
So as you can see, you’re popping out to look in a Easterly direction, more or less, and after about 9:00pm you should get some results. There’s some more information here at this site.
You’ll recall from a number of earlier posts on meteor showers that I’ve mentioned that they are caused by the Earth passing through the debris field of a comet. The Geminids are somewhat different. Well, yes and no. They are actually passing through […] Click to continue reading this post
This is a test of LaTeX on the site*.
The first equation I shall try is the following (for more on unpacking this equation and its meaning, see this post and links therein):
Yay! It works. I have implemented it in the comments too. So now we can have a new, sharper tool for our discussions and arguments.
Click to continue reading this post
Ok, I know that in a post a while ago I said:
I don’t know about you but I melt each of the (very few these days) times I receive a real letter, by post…
So you’d think I’d be delighted with this pile (it is more than three layers deep – and I’ll get at least this many again over the next month or so):
Well, yes and no. What are they?
I was looking over at Bee’s tasty Kokosmakronen (macaroon) post earlier and spotted a picture of her Perimeter Institute mug. I have one of those also, given to me as my thanks for giving some lectures on string theory to some graduate students there last year. What I wondered at … Click to continue reading this post
It is time for another detailed Asymptotia visit to the kitchen.
Not many days after I showed you that phase diagram for pastry making, Thanksgiving day showed up, and I found myself making an apple pie to take over to have with friends for dessert. Making a pie is a very fulfilling kitchen endeavour that is remarkably simple at the core. The bonus is that with a bit of practice the results are often delightful. Let me show you what I mean.
The summary: You do various “processes†to move around the phase diagam, as with any phase diagram in physics. A phase diagram depicts the kinds of states your working substance can end up in as a result of changing the conditions. Like H2O being able to be ice, steam, water, depending upon things like temperature and pressure. In physics, doing various processes to change the temperature and pressure might involve pushing on pistons, adding energy in the form of heat by applying flames with a bunsen burner, etc.
Here, we will be doing processes relevant to the kitchen. The aim is to find the right path across the amusing phase diagram above (click for larger; origin: Lab Lemming; finding the wrong path is not good since you end up with inedible junk… most paths are irreversible). Anyway, find the right path …and soon after you get to eat something like this: […] Click to continue reading this post
There seems to be an intermittent problem or problems with the asymptotia site. I don’t know what it is. From time to time you’ll get a blank page served to you instead of the actual blog. I have not had time to diagnose the problem. I probably won’t get time … Click to continue reading this post
Super long day of meeting after meeting. Call after call. Email after email. With that and all the rest… I’m super-stressed. When I can, I try to make some meetings happen outside. Walk while conversing. That way I get to see things like this:
Well, what else can it be? It is not April 1st, so my only explanation is that it is an Onion article that somehow was picked up by the BBC. What do you think? It reads exactly like one, right down to the picture of the pleasant bearded academic at the board, the well-scrubbed English schoolchildren, and the quotes from the children. The only thing missing is the […] Click to continue reading this post
You’ve possibly been following my efforts over here to discuss and explain the several weaknesses in Smolin’s and Woit’s arguments and positions, and why the current “string debate†is all an overblown (and media-fueled) fake controversy. (See for example the series of posts entitled “More Scenes from the Storm in a Teacupâ€, the last three especially, (links: I, II, III, IV, V, VI); use the search engine for other instances.)
I’ve no idea what the effect of these discussions has been. Woit recently said “my views haven’t changed at allâ€, and so has covered his ears and dug his heels in while Smolin has written some sort of response on his website. I don’t hold out much hope for them, but I do hope that readers of these discussions can see that there’s been a fair amount of wool pulled over their eyes, to say the least.
What to do? What more to say? Whatever more I say, I cannot say it all any better than Joe Polchinski, a true master from whom we’ve all learned so much physics. Read his review in a guest post over on Cosmic Variance!
In case you have not heard, NASA announced today that they have evidence that water flows on Mars. That’s the present tense, note. Not flowed some time ago – flows currently (albeit perhaps only in intermittent bursts). Here’s the link to their announcement. The picture:
[image]
An extract: Click to continue reading this post
You don’t have to feel quite so guilty when you next thumb through the Victoria’s Secret catalogue. (Yes you – you know who you are.) Environmental groups have been protesting their (specifically, the parent company Limited Brands) practices for a long while – they produce about one million catalogues per … Click to continue reading this post
There’s a new paper coming out telling of the observations (over two years) of the swallowing of a star by a black hole, from beginning to end. There’s no nice picture showing this, I’m afraid – the picture to the right (click for larger) is an artist’s impression (see description below). The team, led by Caltech’s Dr. Suvi Gezari, used the Galaxy Evolution Explorer and data from Chandra and some ground based telescopes, to track the ultraviolet radiation emitted from the star as it was consumed by the hole.
From the NASA/JPL press release: […] Click to continue reading this post
