What It Takes

In the ongoing string theory comment thread (which, by the way, I’m really happy to see), “Who” steps off first to ask an interesting question: One way to give operational meaning to a theory being predictive in the sense of being empirically testable is to ask What future experimental result would cause you to reject… Continue reading What It Takes

Pop Culture Interlude

I’m giving an exam this morning, and I’ve got some oral lab report presentations to listen to this afternoon, plus I need to put together some Mathematica activities for Friday. This doesn’t leave great deal of time for detailed science blogging, so here are some pop song lyrics, courtesy of the four-and-five-star playlist on iTunes.… Continue reading Pop Culture Interlude

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Call For Blog Posts

Newton’s Principia has won the prestigious Cosmic Variance Greatest Paper contest, with Dirac’s theory of the electron coming in second. I’m still accepting nominations for the greatest physics experiment ever (probably until the weekend, when I’ll have time to do something with the list…). Thinking about this, it occurs to me that this might be… Continue reading Call For Blog Posts

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Get Out the Vote

Today is the last day to vote in Cosmic Variance’s Greatest Physics Paper contest. If you haven’t voted yet, go over there and pick a paper. Locally, I’m still collecting nominees for the Greatest Physics Experiment. A quick scan through the comments gives the current list as: The Michelson-Morley experiment disproving the aether. Rutherford’s discovery… Continue reading Get Out the Vote

Physicist in Landscape

There’s a slightly snarky Review of Leonard Susskind’s book on string theory (The Cosmic Landscape: String Theory and the Illusion of Intelligent Design) in the New York Times this week. Predictably, Peter Woit is all over it. The central issue of the book, and the review, and Woit’s whole blog is what’s referred to as… Continue reading Physicist in Landscape

Needles in Haystacks Are Nothing

A while back, I talked about a colloquium where Steven Boughn of Haverford argued that it’s practically impossible to detect a single graviton. It was a very nice talk, relying mostly on simple dimensional analysis arguments, and very basic physics. Today, via Wolfgang Beirl (via Mixed States), I see that Boughn and Tony Rothman have… Continue reading Needles in Haystacks Are Nothing

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Categorized as Physics