The Physicist Trap

Mark Trodden has a post endorsing the BEC videogames at the University of Colordao’s Physics 2000 project. These are a bunch of Java applets demonstrating different aspects of the laser cooling and trapping process. I used to link them from my blog on Steelypips, but in the move to ScienceBlogs, I dropped the “Geek Stuff”… Continue reading The Physicist Trap

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Loose Lips Sink Research Grants

A scientific conference like DAMOP almost always includes a conference banquet (to which people may or may not bring dates), usually the last night of the meeting, where everybody gets together to eat massive quantities of catered food and drink massive amounts of wine supplied by the conference. The quality of these ranges from your… Continue reading Loose Lips Sink Research Grants

New Physics Blogs

Well, OK, they’re mostly not new, just new to me. I’m vaguely ashamed at having to rely on Sean Carroll to point out new blogs to me, especially since one of the authors comments here moderately regularly, but my defense is that unlike faculty at semester schools, who are winding things down, I’m right in… Continue reading New Physics Blogs

Lecture Notes Dump

Another set of Quantum Optics notes, dealing with entanglement, superposition, EPR paradoxes, and quantum cryptography. A whole bunch of really weird stuff… Lecture 11: Superposition and entanglement. Lecture 12: EPR “paradox,” introduction to Local Hidden Variables. Lecture 13: Local Hidden Variable theories, Bell’s Theorem/ Bell’s Inequalities. Lecture 14: Bell’s Inequality experiments. Lecture 15: Cryptography, quantum… Continue reading Lecture Notes Dump

Uncertain Pop Quiz

Imagine that you are doing a physics lab to measure the velocity of a small projectile. After making a bunch of measurements to four significant figures, and doing a bunch of arithmetic, you get a value of 4.371928645 m/s. After yet more gruelling math, you find the uncertainty associated with this number to be 0.0316479825… Continue reading Uncertain Pop Quiz