OK, “quiz” isn’t really the right word, because I don’t know the right answer. But here’s something weird that I noticed a while ago, and since I needed an excuse to fool around with video a bit, I thought I’d shoot some pictures of it: Here’s the deal: My cell phone is gently curved on… Continue reading Physics Video Quiz
Category: Physics
Tunguska Explained… Again
The Tuguska event of 1908 is one of the most frequently “explained” events in recent history, trailing only the Kennedy assassination. The arXiv blog reports on the latest explanation of what knocked down all those trees without making a giant crater: Now a new analysis by Edward Drobyshevski of the Russian Academy of Sciences in… Continue reading Tunguska Explained… Again
Obligatory Freeman Dyson Link
As a scientist with a blog, I am apparently contractually obligated to link to the New York Times Magazine profile of Freeman Dyson. If I don’t, they’ll take away my privileges as a scientist. (Of course, since those consist mostly of the right to review grant applications for the NSF, maybe it’d be worth the… Continue reading Obligatory Freeman Dyson Link
Opinions on WebAssign?
I’m teaching the intro mechanics course next term, starting on Monday, and my colleagues who just finished teaching it in the Winter term used WebAssign to handle most of the homework. They speak very highly of it, so I’m probably going to use it next term. I’m curious to know what other people think, though.… Continue reading Opinions on WebAssign?
Academic Poll: Breadth or Depth?
I fell behind on course reports from my modern physics class a few weeks back, but I do mean to get back to them, when I have more time. The material remaining is the end-of-term sprint through a bunch of topics in modern physics– three classes on atoms and molecules, three classes on solid state… Continue reading Academic Poll: Breadth or Depth?
Cold Fusion Still Generating Heat
Steve calls me out for not commenting on new stories about “cold fusion”: Becky and I have been having much more regular access to the internet since the power was fixed. We check e-mail just about everyday and can even skim yahoo news. Or Professor Orzel’s blog. I heard on BBC radio yesterday that there… Continue reading Cold Fusion Still Generating Heat
Physics Can Fix This
One of the NCAA pools I’m in has a copy of Obama’s bracket entered, and the last I checked, I’m a couple of games up on him. This means I’m as qualified as anyone else to offer a plan to fix the financial crisis, and I have just the plan we need. On the question… Continue reading Physics Can Fix This
March (Meeting) Madness
I’m giving an exam this morning, then taking the afternoon off for my annual hoops overdose, so there won’t be much physics commentary here for the next few days. If you want hot physics news, though, there are a bunch of bloggers at the March Meeting, providing summaries on the Internet: Doug Natelson has two… Continue reading March (Meeting) Madness
Why Does Excel Suck So Much?
Yesterday’s bad graphic post spurred me to finally get around to doing the “Why Does Excel Suck So Much?” post I’ve been meaning to do for a while. I gripe about Excel a lot, as we’re more or less forced to use it for data analysis in the intro labs (students who have taken the… Continue reading Why Does Excel Suck So Much?
The Higgs Boson: Still Not Here
I was busy with other stuff when this hit the blogs, but I did want to at least comment in passing on Fermilab’s announcement that it still hasn’t found the Higgs Boson. Detailed commentary is available from Tommaso Dorigo and John Conway. If you’re not a physicist, or even just not a particle physicist, it… Continue reading The Higgs Boson: Still Not Here