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00:40:00
Cheer on the competitors in this zany science cook-off, where teachers compete before a live webcast audience for the sought-after title, "Iron Science Teacher."

00:07:05
Framing of the Exploratorium's Observatory Building, the only completely new construction at at the piers, began in April 2011. Iron workers placed various sizes of steel beams in piles around the concrete base of the Observatory. Then, while a crane raised and held each beam aloft, the workers used metal spikes to line up the holes of the beams and inserted bolts, tightening them down to tie the structure together. Because the Observatory Building is less than two stories tall, the iron workers were allowed to shimmy across the beams without harnesses. Once this process was finished, the beams were plumbed and welded together.

00:46:01
Cheer on the competitors in this zany science cook-off, where teachers compete before a live webcast audience for the sought-after title, "Iron Science Teacher."

00:48:20
Cheer on the competitors in this zany science cook-off, where teachers compete before a live webcast audience for the sought-after title, "Iron Science Teacher."

00:47:47
Cheer on the competitors in this zany science cook-off, where teachers compete before a live webcast audience for the sought-after title, "Iron Science Teacher." This week's secret ingredient? Colors!

00:04:15
In this program we meet Elizabeth Young, pigeon rescue expert and head of the pigeon rescue organization MickCoo (http://www.mickacoo.org), for a personal introduction to pigeons-their history, their accomplishments, their contributions to research in animal behavior/memory/learning/and how they navigate long distances-as well as their plight in the city. For more information visit: www.RescueReport.org

00:43:00
Intuit Founder Scott Cook, NOAA Administrator Jane Lubchenco, Former Los Angeles Unified School District Superintendent Ramon Cortines, and Retired Congressman Vernon Ehlers join KQED's Dave Iverson for a lively conversation on the topic of Science for Decision Making. This discussion was recorded at the Exploratorium's 34th Annual Awards Dinner on May 4, 2011.

No one puts the laws of physics to the test quite like the urban skateboarder. Join us for a closer look at the science behind the tricks of the sidewalk-shredding trade, from the basic ollie to high-flying aerial maneuvers.

00:01:10
This After Dark event was devoted to the ever-mysterious and otherworldly dimensions of sleep, darkness, and night.

00:03:14
The original multimedia storytelling device, puppetry dates back many thousands of years and spans cultures worldwide. Join us for a back-stage look at an artistic collaboration that brings together a composer, musicians, puppeteers, and, of course, puppets to bring a story to life.