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00:15:41
Dr. Christine Carter is a sociologist who studies the childhood roots of happiness. She is the executive director of the Greater Good Science Center at UC Berkeley, an interdisciplinary research center that promotes the study of happiness, compassion, and altruism. In this program, Dr. Carter speaks about happiness, altruism, and the inspiring intersection of her personal and professional worlds.

00:37:58
Halloween Special Edition! In this zany competition teachers have ten minutes to create a science activity from a special Halloween secret ingredient... bats!

00:54:24
In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: eye care products!

00:48:06
In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: dental hygiene products!

00:48:10
In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: hair care products!

00:30:36
Join us as we celebrate the beginning of summer in the Arctic and the long, cold winter in Antarctica. We'll connect live to two polar field sites: Summit Camp atop Greenland's vast ice sheet, where the sun will be shining 24 hours a day, and the South Pole Research Station, now in the middle of 6 months of darkness.

00:00:31
An introduction to the bee hummer, a simple musical instrument that sounds like a swarm of buzzing bees when you spin it around.

00:06:08
A detailed demonstration of how to make the bee hummer, including a discussion of materials needed, troubleshooting tips if your hummer isn't humming well, and a demonstration of how the instrument should be played.

00:01:27
The science behind this simple musical instrument, including the concepts of sound, vibration, and amplification.

00:00:39
An introduction to the cuica (pronounced KWEE-kah), a small friction drum used in Brazil's Carnival parade.