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00:16:24
In conjunction with this summer's special exhibition Reflections, Exploratorium Senior Scientist Paul Doherty joins us for a hands-on Webcast. What effect does looking through two mirrors have on an image? Or three mirrors?

00:11:02
TI staff biologist Karen Kalumuck breaks down the news about the mysterious ailment afflicting our country’s bees. Why does it matter, and what can we do about it?

00:05:28
Sometimes kids don’t have much experience with nature. TI teacher coach Kim Marie Hansen recounts how she got her inner city students outside and observing the world by using nature journals.

00:03:53
Got a tough kid in your class? TI Staff Educator Modesto Tamez tells a story from his teaching career—explaining a powerful technique that has helped him win over the stubborn, negative students.

00:09:29
Newton’s laws were never so tasty. Exploratorium staff educator Don Rathjen demonstrates concepts about force using a file folder and a marshmallow.

00:13:23
The Exploratorium's Playful Invention and Exploration (PIE) department is inviting the public to create components of a multi-step chain reaction at Bay Area Maker Faire, 2009. Watch live as each maker's machine sets off the next, culminating in a grand finale!

00:16:50
For the second time, the Exploratorium's Playful Invention and Exploration (PIE) department is inviting the public to create components of a multi-step chain reaction at Bay Area Maker Faire, 2009. Watch live as each maker's machine sets off the next, culminating in a grand finale!

00:05:36
A lucky veteran teacher tells how she got started teaching in a supportive school and with help from her predecessor. This episode is one of several “first-year” stories from people in a difficult profession.

00:07:42
How big does a mirror have to be for you to see yourself in it? Exploratorium staff physicist Thomas Humphrey describes an activity you can use in your classroom to investigate simple optics.

00:07:33
Children’s book author David Schwartz tells how big numbers got him excited about math when he was a kid.