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00:09:30
There’s no mistaking the distinct voice—whether throbbing, singing, or screaming—of an electric guitar. How does one instrument produce so many different sounds? We visit with Bay Area electric guitarists Ava Mendoza and Henry Kaiser, plus Subway Guitars’ very own Fat Dog, to explore the components of this versatile instrument, getting down to pick-ups, “pots,” and pedals that make it sing.

00:06:50
Despite my better judgment, I invite TI staff educator Eric Muller to do one more set of activities—several things you can do with soda straws.

00:08:12
Staff educator Modesto Tamez tells how he gets students exploring electromagnets, a great preparation for making an electric motor.

00:02:54
In November 2009, Exploratorium After Dark welcomed particle physicist Dr. Austin Richards—aka Dr. MegaVolt. Under the Palace of Fine Arts rotunda, he jousted with a high-voltage Tesla coil, which generated 200,000 volts of electricity and shot 14-foot-long arcs of lightning through the air.

00:04:22
Meet Dr. Ethan Brodsky from the U. of Wisconsin, who advised a group of undergraduate students in the design and build of an electric snowmobile. Video produced by Ice Stories correspondent Zoe Courville.

00:01:32
An introduction to the jitterbug, a simple motorized toy made of a recycled CD and a DC motor.

00:10:57
A detailed demonstration of how to make this toy, including a discussion of materials needed.

00:01:41
The science behind this toy, including a discussion of how electric circuits work, and how an unbalanced load (an off-center weight on your jitterbug) results in rotational vibration.

00:42:10
Exploratorium Senior Scientist, Dr. Paul Doherty, takes us through the Photoelectric Effect and the "invention" of photons.

00:59:28
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers will have ten minutes to create a science activity. Tee off with this week’s “secret” ingredient-aluminum foil!