W1A

[caption id="attachment_20038" align="aligncenter" width="499"]Brpmpton bicycle rental lockers. Brompton bicycle rental lockers.[/caption]
I’ll be visiting Broadcasting House during my time here in London this week, for reasons I’ll mention later. Needless to say (almost), as a Brompton rider, and fan of the wonderful show W1A, I feel a sense of regret that I don’t have my bike here so that I can ride up to the front of the building on it. you won’t know what I’m talking about if you don’t know the show. Well, last night I was a-wandering and saw the rental option shown in the photo. It is very tempting…

-cvj
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Super Nailed It…

quick_sketch_of_black_pantherOn the sofa, during a moment while we watched Captain America: Civil War over the weekend:

Amy: Wait, what…? Why’s Cat-Woman in this movie?
Me: Er… (hesitating, not wanting to spoil what is to come…)
Amy: Isn’t she a DC character?
Me: Well… (still hesitating, but secretly impressed by her awareness of the different universes… hadn’t realized she was paying attention all these years.)
Amy: So who’s going to show up next? Super-Dude? Bat-Fella? Wonder-Lady? (Now she’s really showing off and poking fun.)
Me: We’ll see… (Now choking with laughter on dinner…)

I often feel bad subjecting my wife to this stuff, but this alone was worth it.

For those who know the answers and are wondering, I held off on launching into a discussion about the fascinating history of Marvel, representation of people of African descent in superhero comics (and now movies and TV), the […] Click to continue reading this post

Gyration…

Extract from Wednesday’s General Relativity class:

Me, at the board writing equations: “…and so the ratio of the earth’s radius to its radius of gyration is about 0.577…”
Student raises hand and asks: “What’s radius of gyration?”
Me: “Er… It’s the average spacing everyone has to give you at the night club when you go Ker-ray-zay on the dance floor.”

As luck would have it, everyone laughed. That would have been a terrible time to have an awkward silence.

-cvj Click to continue reading this post

Compton Delight

compton_effectI forgot to mention that I saw some skywriting two days ago over Los Angeles that I took to be – of course – a celebration of the Compton effect. You know, when a photon scatters off a charged particle and loses energy? That. It’s so good to see physics being celebrated so exuberantly in the public sphere**.straight_outta_physics_2

-cvj

**My wife, who I was with at the time, suggested to me that it was to do with someone called Dr. Dre, but I’m pretty sure that it was Dr. Compton who discovered that phenomenon, so I gently explained the discovery to her. Click to continue reading this post

On-Screen Fun…

trevor_hal_cvj_screen_junkiesWell, yesterday afternoon was fun! I was at the studios of the people who bring you Screen Junkies, Honest Trailers, and other film-related entertainment. Why? We were recording another fun conversation concerning science at the movies! The new episode will be released on Thursday at 10:00am, and so check back here or go over to the Screen Junkies channel for updates. What’s the subject? Well, I’ll let you guess which huge movie (in theatres near you right now) we discussed – wait until Thursday to find out for sure! (There’s a major clue in the photo.)

The great thing about all of this is that I got to hang out with Hal Rudnick (the host – who was as funny as always – he’s in the centre of the photo), Trevor Valle* (I’ve not seen him in a while so it was good to catch up!) who was my […] Click to continue reading this post

Has Hubble found the Culprit?

Recall that some years ago the Hubble telescope found a rude message in the sky:

Carina Hubble Image

It is said that many were offended by this sign. Some even thought it may have been left by their God as a sort of crude final message for those seeking meaning in the skies. Other, perhaps less imaginative people just figured it’s a random combination of shapes people are projecting onto.

Well, after much more searching through the sky for the perpetrator of the crime, it seems that the Hubble instrument may have caught a suspect on camera:
A smiling lens

Of course, until the entity is brought in for questioning, it should be granted the presumption of innocence. (And even if it was its hand, it may have all been a big celestial misunderstanding…)

-cvj

P.S. The first NASA/ESA Hubble image is from a detail of gas clouds in the Carina nebula, and more can be found out about it here.

In the second NASA/ESA Hubble image the arcs of a circle that form the “head” shape are actually a gravitational lensing effect. 100 years ago this year Einstein published his General Relativity which shows, among other things, […] 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

Debate about Forever…

This is a good one from the Onion. (I’ve not looked in on them for a while, so this was a funny thing to return to see…*) The title says it all: “Top Theoretical Physicists, R&B Singers Meet To Debate Meaning Of Forever”. Extract:

[…] at the four-day symposium, where they grappled with extant questions regarding the concept of forever that remained unresolved, such as whether forever is better conceived as an infinite, four-dimensional expanse of space-time or, rather, what one second feels like when you’re away from your girl.

“For many years, the R&B community has posited the classic notion that forever is presumed to go on and on like our love,” said Edward Witten, a string theorist at the Institute for Advanced Study, who acknowledged that while time appears to extend unendingly, it is paradoxically composed of discrete moments such as a tender embrace or a single perfect kiss. “This assertion then raises a problem of even greater […]

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The Calculus of Gender and Sexuality?

So, I don’t know why, but in addition to the catalogues I get in my work mailbox from publishers of physics books or lab equipment, I’ve started getting a lot about books in the Humanities and related subjects. Is this because those publishers know of my tendency to dabble in other subject? I’ve no idea. In any case, all of those things tend to end up pretty swiftly in the recycling bin nearest the department mailboxes. A suite of lovely new books on teaching Art History is about as valuable to me as a shiny sets of vacuum pumps or electronic controllers. I’ll admit to sometimes looking through and longing for the time I’d need in order to explore such things (vacuum pumps or Art History texts)… but then into the bin they go.

Well, earlier this week a catalogue arrived and one might be forgiven for thinking that they are really trying to get my attention with this one. It is a catalogue of Gender and Sexuality texts from Ashgate, and if the image on the cover is representative (uh, as far as I know it is not!) they’ve really developed some fancy techniques in the field!

Some of the formulae are hilarious! (And I’m trying to understand the, obviously important, inequality right in the middle…) […] Click to continue reading this post

No, That’s the Other Guy…

sam_jackson_tvNo, I’m not Neil deGrasse Tyson. Yes, we both talk about science on TV. Yes, we both happen to be black… but no, we are not the same guy. Also: No, I am not Jim Gates. He also sometimes shows up on TV talking about physics, and he is also black.. but no, he isn’t either me (Clifford) or Neil… He’s Jim.

This attempt at humour is inspired (in part) by real conversations I’ve had (less so in recent years, thank goodness – people are maybe better about googling first?). But mostly it is inspired by this (familiar) sad, funny, and stunningly awkward conversation from Monday* (the first 2 minutes 10 seconds): […] Click to continue reading this post