Café Talk

cafe_sketch_27_06_14 Here’s a quick sketch I did while in Princeton last month, at a new café, Café Vienna. (See earlier posts here and here for sketches in an older Princeton Café. I’m using a thicker marker for this one, by contrast, giving a different feel altogether, more akin to this one.) This new café promises to recreate the atmosphere of the Cafés of Vienna and so I kind of had to have coffee there before I left. Why?

Well, two reasons, one obvious and the other less so: […] Click to continue reading this post

Triply Dyonic

dyon_phase_diagramsI thought I’d mentioned this already, but I could not find anything after a search on the blog so somehow I think I must have forgotten to. It is a cute thing about a certain favourite solution (or class of solutions) of Einstein’s equations that I’ve talked about here before. I’m talking about the Taub-NUT solution (and its cousin, Taub-Bolt). Taub-NUT is sort of interesting for lots of reasons. Many, in fact. One of them concerns it having both mass [tex]M[/tex] and another parameter called “nut charge”, [tex]N[/tex]. There are several ways to think about what nut charge is, but one curious way is that is is sort of a “magnetic” counterpart to the ordinary mass, which can be thought of as an “electric” quantity.

The language is based on analogy with electromagnetism, where, in the usual […] Click to continue reading this post

Hey, You…

page_extract_27_07_2014_2Today (Sunday) I devoted my work time to finishing an intensely complicated page. It is the main “establishing shot” type page for a story set in a Natural History Museum.

This is another “don’t do” if you want to save yourself time, since such a location results in lots of drawings of bones and stuffed animals and people looking at bones and stuffed animals. (The other big location “don’t do” from an earlier post was cityscapes with lots of flashy buildings with endless windows to draw. 🙂 )

Perhaps annoyingly, I won’t show you the page_extract_27_07_2014_1 huge panels filled with such things, and instead show you a small corner panel of the type that people might not look at much (because there are no speech bubbles and so forth). This is seconds before our characters meet. A fun science-filled conversation will follow…(Yes these are the same characters from another story I’ve shown you extracts from.)

[Update: I suppose I ought to explain the cape? It is a joke. I thought I’d have a […] Click to continue reading this post

Pot Luck

pot_luck_25_04_14_6Here in Aspen there was a pleasant party over at the apartment of one of the visiting physicists this evening. I know it seems odd, but it has been a while since I’ve been at a party with a lot of physicists (I’m not counting the official dinners at the Strings conference a fews weeks back), and I enjoyed it. I heard a little about what some old friends were up to, and met some spouses and learned what they do, and so forth. For the first time, I think, I spoke at length to some curious physicists about the graphic book project, and the associated frustrating adventures in the publishing world (short version: most people love it, but they just don’t want to take a risk on an unusual project…), and they were excited about it, which was nice of them.

pot_luck_25_04_14_1It was a pot luck, and so although I was thinking I’d be tired and just take along a six-pack of beer, by lunchtime I decided that I’d make a little something and take it along. Then, as I tend to do, it became two little somethings…and I went and bought the ingredients at the supermarket nearby and worked down at the centre until later. Well, first I made a simple syrup from sugar and water and muddled and worried a lot of tarragon into it.

pot_luck_25_04_14_2 Then in the evening, there was a lot of peeling and chopping. This is usually one of my favourite things, but the knives in the apartment I am staying in are as blunt as sticks of warm butter, and so chopping was long and fretful. (And dangerous… don’t people realise that blunt knives are actually more dangerous than sharp ones?) […] Click to continue reading this post

74 Questions

open_questions_cvjHello from the Aspen Center for Physics. One of the things I wanted to point out to you last month was the 74 questions that Andy Strominger put on the slides of his talk in the last session of the Strings 2014 conference (which, you may recall from earlier posts, I attended). This was one of the “Vision Talks” that ended the sessions, where a number of speakers gave some overview thoughts about work in the field at large.

Andy focused mostly on progress in quantum gravity matters in string theory, and was quite upbeat. He declines (wisely) to make predictions about where the field might be going, instead pointing out (not for the first time) that if you look at the things we’ve made progress on in the last N years, most (if not all) of those things would not have been on anyone’s list of predictions N years ago. (He gave a specific value for N, I just can’t recall what it is, but it does not matter.)

He sent an email to everyone who was either speaking, organising, moderating a session or similarly involved in the conference, asking them to send, off the […] Click to continue reading this post

Dark Energy Discussion

dark_energy_discussionI was sent an interesting link a while ago* that I thought I would share with you. It is a really good discussion about Dark Energy – what do we think it is, why we think it exists, why some think it does not, and how to move forward with the discussion of what is, after all apparently *most* of our universe. It is a panel discussion that was hosted by the Institute for Arts and Ideas (which I *love* the idea of!). The discussion is described on the site as follows:

Dark energy is supposed to make up two-thirds of the universe. But troublingly CERN has yet to find any evidence. Have we got our story of the universe wrong – might dark energy be the aether of our time? Do we need a new account of the universe, or is it too soon for such radical solutions?

The Panel
The BBC’s Sue Nelson asks Templeton Prize winning cosmologist George Ellis, Cambridge physicist David Tong and mathematician Peter Cameron to seek the invisible.

Ok, the “troublingly CERN has yet to find any evidence” part puzzles me a bit, since nobody’s really expecting CERN to find any evidence of it, in any large scale experiments that I’m aware of (please correct me if I am wrong)… Is the writer of the abstract confusing Dark Energy and Dark Matter? Even then I think it is an odd phrase to lead with, especially if you don’t mention the huge amount of evidence from astronomy in the same footing… but I imagine the abstract was maybe not written by a physicist?

Nevertheless, I strongly recommend it as a thought-provoking discussion, and you can find it embedded below. Do also check out their many other interesting […] Click to continue reading this post

Fireworks!

It is the 4th of July, and I hope you who are celebrating it have a good time today!
fail_lab_ep_6_still_2

I can’t really let the day pass without sharing with you the episode of Fail Lab in which we examine fireworks and pyrotechnics with an appropriate cautionary note, and a dash of humour. Enjoy it again if you’ve seen it before, and don’t forget to check out all twelve episodes. You can read my discussion of the whole series (excellently made by Patrick Scott) starting here, and there’s more here. Click below for the episode: […] Click to continue reading this post

Morning Sex

gardening_3rd_july_2014_2Yep. This is an exciting new discovery for me. No, it is not what you think! I’m talking about gardening matters. It seems that a lot of my cucumber and squash plants are not producing a great deal this year, (with several small squashes not developing much before falling off) and I could not figure out why. On the other hand, I’ve done a better job of building sun shields for them, to stop them being fried by the intense heat over the course of a hot day. I now think that maybe these things are connected. First of all, I’m not seeing a lot of bees of any sort in the garden, and so I wonder if it is simply that there’s not a lot of pollination going on. Couple this with the fact that the sunscreens (some quite low) are probably hiding them from some bees that might be passing by, I’ve begun to wonder if it is time to help things along a bit. […] Click to continue reading this post