Quantum Mechanics vs. Relativity: It Depends on What “Understand” Means

Sean Carroll and Brad DeLong have each recently asserted that relativity is easier to understand than quantum mechanics. Both quote Feynman saying that nobody understands quantum mechanics, but Sean gives more detail: “Hardness” is not a property that inheres in a theory itself; it’s a statement about the relationship between the theory and the human… Continue reading Quantum Mechanics vs. Relativity: It Depends on What “Understand” Means

Links for 2011-02-16

Did you ever want to meet one of the Calaquendi? : EphBlog “I don’t remember exactly when I first read the Hobbit, The Lord of the Rings, and the Silmarillion, but it was at least 30 years ago. I’ve re-read them all (plus “Unfinished Tales” and the recently published “The Children of Hurin”) dozens of… Continue reading Links for 2011-02-16

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Links for 2011-02-15

The Prodigal Academic: Quick tips for TT interviews “It is interview season in my fields, and we have a few searches going on here at ProdigalU (and keeping me out of trouble). I know I’ve blathered on about interviews here, here, and here before, but more tips can’t hurt, right? Here are a few things… Continue reading Links for 2011-02-15

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Links for 2011-02-14

Zero Gravity: The Lighter Side of Science “In the July issue of APS News we pointed out that Einstein’s field equations for general relativity appear unexpectedly under the opening credits of the animated feature film “The Triplets of Belleville,” directed by Sylvain Chomet of France. We asked our readers for their interpretation, and offered copies… Continue reading Links for 2011-02-14

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Links for 2011-02-13

The Literature of Ideas; or, please stop laughing at me – pornokitsch “I can understand the temptation – and seeing how widely used the phrase has become, clearly I’m not the only one. Being “the literature of ideas” gives science fiction the authority of science. Or broadening it out – it gives speculative fiction permission… Continue reading Links for 2011-02-13

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Links for 2011-02-12

Yemen: Protests Continue Away from International Media Eyes · Global Voices “With the entire world watching Egypt as it celebrates the uprooting of its dictator, Yemenis are calling for help and the world’s media attention. On Twitter, the calls came loud and clear. A rally started in Sanaa, the Yemeni capital, in celebration of the… Continue reading Links for 2011-02-12

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Academic Poll: Correlation and Evaluation

The always fraught question of student course evaluations has come up again on campus. In discussions, the correlation between “expected grade” and “overall evaluation” has once again been noted– that is, students who report expecting a higher grade are more likely to give a good overall score to their professors than students who expect a… Continue reading Academic Poll: Correlation and Evaluation