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00:04:43
Teaching isn't just work, it's a lot of fun. Staff physicist Thomas Humphrey quickly figured out that he didn't have the answer to every question in the classroom-and that's the fun of it.

00:07:04
TI staff biologist Karen Kalumuck describes how she tries not to answer every question that's asked during a class. Instead, she guides her students to discover ideas for themselves.

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.

00:06:50
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.

01:54:49
In this extensive talk from 1985, prolific American composer, musician, and self-proclaimed 'student' Anthony Braxton discusses many elements of his musical work. Because Braxton sees his musical output as part of larger constellations of culture, politics, and spirituality, his talk is huge in scope, and his language sometimes dizzies while it dazzles. He discusses his personal rejection of music for entertainment, and considers instead what music might do to further universal values. He also takes audience questions and plays excerpts of some of his recordings. This talk will amuse, awe, challenge, and inspire interested parties old and new.