Ok, I promised to explain the staircase I put up on Monday. I noticed something rather nice recently, and reported it (actually, two things) in a recent paper, here. It concerns those things I called “Holographic Heat Engines” which I introduced in a paper two years ago, and which I described in some detail in a previous post. You can go to that post in order to learn the details – there’s no point repeating it all again – but in short the context is an extension of gravitational thermodynamics where the cosmological constant is dynamical, therefore supplying a meaning to the pressure and the volume variables (p,V) that are normally missing in black hole thermodynamics… Once you have those, it seems obvious that you can start considering processes that do mechanical work (from the pdV term in the first law) and within a short while the idea of heat engines in which the black hole is the working substance comes along. Positive pressure corresponds to negative cosmological constant and so the term “holographic heat engines” is explained. (At least to those who know about holographic dualities.)
So you have a (p,V) plane, some heat flows, and an equation of state determined by the species of (asymptotically AdS) black hole you are working with. It’s like discovering a whole new family of fluids for which I know the equation of state (often exactly) and now I get to work out the properties of the heat engines I can define with them. That’s what this is.
Now, I suspect that this whole business is an answer waiting for a question. I can’t tell you what the question is. One place to look might be in the space of field theories that have such black holes as their holographic dual, but I’m the first to admit that […] Click to continue reading this post
These stairs probably do not conform to any building code, but I like them anyway, and so they will appear in a paper I’ll submit to the arxiv soon.
They’re part of a nifty algorithm I thought of on Friday that I like rather a lot.
-cvj Click to continue reading this post
Over at Marvel, I chatted with actor Reggie Austin (Dr. Jason Wilkes on Agent Carter) some more about the physics I helped embed in the show this season. It was fun. (See an earlier chat here.) This was about Zero Matter itself (which will also be a precursor to things seen in the movie Dr. Strange later this year)… It was one of the first things the writers asked me about when I first met them, and we brainstormed about things like what it should be called (the name “dark force” comes later in Marvel history), and how a scientist who encountered it would contain it. This got me thinking about things like perfect fluids, plasma physics, exotic phases of materials, magnetic fields, and the like (sadly the interview skips a lot of what I said about those)… and to the writers’ and show-runners’ enormous credit, lots of these concepts were allowed to appear in the show in various ways, including (versions of) two containment designs that I sketched out. Anyway, have a look in the embed below.
Oh! The name. We did not settle on a name after the first meeting, but one of […] Click to continue reading this post
This just in. Marvel has posted a video of a chat I did with Agent Carter’s Reggie Austin (Dr. Jason Wilkes) about some of the science I dreamed up to underpin some of the things in the show. In particular, we talk about his intangibility and how it connects to other properties of the Zero Matter that we’d already established in earlier episodes. You can see it embedded below […] Click to continue reading this post
Alert: Agent Carter season 2 is currently airing. I talk about last week’s episode three in this post. You’ve been warned.
While I’ve been very pleased with the volume of scientific tidbits the Agent Carter writers have allowed me to sprinkle into the show (perfect fluids, Compton wavelength, an accretion disc around a spacetime rift… and you can see two of my boards, including bits of the Thomas-Fermi model**) – and there are many more to come! – the really great science reveal came this last episode, #3, (spoilers!): […] Click to continue reading this post
Over on NPR’s 13.7 blog, Barbara J. King reported on what she took away from the panel at Sundance entitled “The Art of Getting Science Right”. The discussants were Ting Wu, Mike Cahill, myself, and Kerry Bishé moderated everything masterfully. (We also were the Sloan Jury, along with Shane Carruth, who was indisposed.) As you know from my writing here, I’ve long been advocating a lot for more focus on portraying the scientific process and the engagement and joy of science over worrying about getting every science detail right. This came up a lot in our conversation, and we […] Click to continue reading this post
Well, I’m back from the Sundance Film Festival, where (as you’ll recall from previous posts) I was serving on a jury for the Alfred P. Sloan Foundation prize for science in feature film. It involved a lot of sitting and watching movies in theaters all over Park City, discussion and deliberation with fellow jurors (and what a wonderful group to hang out with!), and then a public panel discussion about the importance of science in film (and how to do it “right”) and then announcements, questions, photos, more photos, even more photos, press, etc.
As you may know (it is all over the corner of the press that cares about this sort of thing) we awarded the prize to the film “Embrace of the Serpent” (director/writer: Ciro Guerra*), which happens to also be Colombia’s Oscar-nominated entry in the Foreign Language film category. Here was our citation, read out during a reception on Tuesday:
“for its original and provocative portrait of a scientist and a scientific journey into the unknown, and for its unconventional depiction of how different cultures seek to understand nature.”
I recommend seeing the film because there’s excellent […] Click to continue reading this post
Get thinking about your film ideas, the new competition is here!
You can read a bit of background on the competition in this news piece by Robert Perkins.
-cvj Click to continue reading this post
Here’s a piece by Michelle Boston of Dornsife News that might unpack my graphic book project for you, a least a little bit.
The link is here. She interviewed me about it a while ago, and this is the result…
-cvj Click to continue reading this post
Variety and other such entertainment news sites are abuzz with the news that Sundance has now announced its list of who’s on the various Juries for prizes at the festival this year. As you may know, the Sloan Foundation gives a prize there for science in feature film, and I’ll be on the Jury this year. It should be fun – watching all those films will be a bonus, but I’m most looking forward to talking with Kerry Bishé and Shane Carruth about science/engineering and film. Kerry plays a computer engineer character on AMC’s “Halt and Catch Fire”, and in my view really helps set a new high standard for the level of depth and nuance you can bring to such a character while staying well away from every tedious engineer/scientist character trope that actors usually are expected to bring to […] Click to continue reading this post
It’s nice to be on the front page of the Wall Street Journal this morning when my mum is visiting me. But where does one go to actually buy a newspaper?!
The nice piece, by Erich Schwartzel, is about the work the Science and Entertainment exchange, working with scientists like myself does in the entertainment industry. It opens by reporting on a conversation I was having at that Back to the Future […] Click to continue reading this post
Somewhere near you, some perfectly ordinary people are about to do something wonderful – start a conversation about science… turn their minds to how the world around them works. Isn’t that great? Here’s an iPad rough of an opening splash page of a story with one such conversation*. Listen! – It is about to begin. (Click for larger view.) Pick your city/street/people…
[…] Click to continue reading this post
Those pages of notes are from a couple of weeks back (I did not get time to post about it – been busy). I’ve had to blur pretty much everything on them since although they were real physics computations, they are for an episode of the TV show Agent Carter, and a few of you might be able to read the equations and with a bit of educated guesswork perhaps figure out elements of the show. I don’t reveal details of that sort without permission, as you know by now. Anyway, it was interesting to do (on this and some other occasions for this show), since from the scripts I get to interpret what I think the scientist involved is thinking about and working on at a very technical level, and then create some of their scribblings that you’ll see when looking over their shoulder. This case was particularly fun to do since a lot of the material is […] Click to continue reading this post
Today’s big conundrum: Call this curve a knee or an elbow?
On the one hand, it goes from horizontal to vertical, so obviously a knee.
On the other hand, the little bump before the plunge is sort of a bit like a cartoon elbow*. Think of Popeye, etc.
*Or perhaps a real one, but with a case of olecranon bursitis… Click to continue reading this post
My friends over at UCLA took the reins for the regional meeting known as the Southern California Strings Seminar this semester, and the shot above (a tad blurry) is from the event, which was today. We had four excellent talks (I […] Click to continue reading this post