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00:00:46
The Geyser Valley is a "candy shop" for microbiologists and geochemists.

00:41:18
In this zany competition teachers will have ten minutes to create a science activity from a special secret ingredient. This week: mirrors!

00:58:32
Watch ancient text revealed and read for the first time in a thousand years! Archimedes was one of the world's greatest scientific and mathematical minds. His thoughts were inscribed on goatskin parchment, but the letters and diagrams were scraped off and written over by Greek monks in the Middle Ages. Now, using an intense x-ray beam generated at Stanford University's linear accelerator, some of the original Greek text will be revealed for the first time in the modern world.

1:04:26
In this zany competition teachers will have ten minutes to create a science activity from a special secret ingredient. This week: rocks!

01:05:00
In this zany competition teachers will have ten minutes to create a science activity from a special secret ingredient. This week-fruit!

01:01:49
In this zany competition teachers will have ten minutes to create a science activity from a special secret ingredient. This week: crayons!

1:02:09
In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: iron!

00:04:43
On March 29, 2006, a total solar eclipse occurred as the moon moved directly between the earth and the sun. The moon's shadow fell on the earth, first darkening the eastern tip of Brazil, and then moved across the Atlantic Ocean to make landfall in Ghana, Africa. It continued moving northeast through Nigeria, Niger, Libya, Egypt, across the Mediterranean and into Turkey, where an Exploratorium team was waiting.

1:02:13
In this zany competition teachers will have ten minutes to create a science activity from a special St. Patrick's Day secret ingredient-things that are green!

00:00:11
An clip of the Aeolian Landscape exhibit by artist Ned Kahn. Blowing air sculpts sand into an ever-changing landscape.