Energy Types, Nukes, and Impacts

Chicxulub Crater
I’ve posted an online PowerPoint presentation of Energy: Types, Nuclear Weapons, & Impacts. (If you use Firefox, use the IE Tab or IE View extensions.)

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Solar System Science

Ptolemy's System
At long last I’ve put together an online PowerPoint presentation of my popular unit on the science history behind our understanding of Gravity & the Solar System. (If you use Firefox, use the IE Tab or IE View extensions.)

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General Relativity Animated


Here’s the wonderful clip from Brian Green’s The Elegant Universe I show in class about General Relativity.

Get the DVD at Amazon

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Fluffy Catnapping 2004

Posted by popular demand. Some students in 2004 catnapped Fluffy and decided to re-enact some examples from class – with the help of some stunt doubles, thank heavens! There is another video from 1998 I’ll have to convert and post as well…

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A World Without Friction

Mu (the coefficient of friction) is our friend. Witness what happens at a Portland, Oregon intersection when our friend leaves on winter vacation.

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