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00:05:11
A veteran teacher describes her first year of teaching-in Guatamala. She faced many, many challenges, but she stuck it out and has been teaching for 20 years.

00:07:04
What is indigo anyway? Staff physicist Paul Doherty tells the story behind ROYGBIV, and how he'd like to change that standard palette.

00:07:27
What coin would just barely cover the full moon? You may be surprised. TI director (and recovering astrophysicist) Linda Shore explains how our brains distort the actual size of the moon.

01:34:04
Composer and performer Pauline Oliveros has been a pioneering figure in American music for over four decades. In this intimate talk recorded at the Exploratorium on February 21, 1985, Oliveros discusses her decision to quit teaching and flee to Italy with her accordion, her appreciation of the Grateful Dead's concert sound system, and the perils of the squeezebox. She also takes audience questions and performs "Rattlesnake Mountain" live.

00:05:51
Take a little sound quiz with our host, Stephanie Chasteen, and learn something about how our brains locate sounds.

00:09:29
Have you ever really listened to a ball bounce? Exploratorium staff physicist Thomas Humphrey describes the elegant mathematics of a bouncing ball.

00:01:22
In June, 2010, the Exploratorium will launch it's newest exhibition, Geometry Playground. Check out this teaser clip and come back for more on June 25th, 2010.

00:03:20
This April Fools’ Day After Dark event exposed people’s threshold for taking chances. For example, visitors could test their belief in the laws of physics as a bowling ball swung toward them. They could also tackle a climbing wall, try their luck at casino games, and see if they had the nerve to carry out the instructions on a card they were given.

00:03:41
A compilation of video clips collected in deepwater by the Little Hercules Remotely Operated Vehicle and camera platform during an ROV shakedown cruise aboard NOAA Ship Okeanos Explorer offshore Kona, Hawaii (March 2010).

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.