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00:06:30
What are salt ponds and why are they are being restored to their natural habitat? The South Bay Salt Pond Restoration Project is the largest tidal wetland restoration project on the West Coast. When complete, the project will restore 15,100 acres of industrial salt ponds to a rich mosaic of tidal wetlands and other habitats. For more information go to http://www.southbayrestoration.org .

00:03:14
We Make the Treasure by Paul Ramirez Jonas June 19, 2014–January 2015 Location: Exploratorium Pier 15 Admission: Free The second installment in the Over the Water series of large-scale, commissioned artworks. Explore the value of objects lost and recovered, above and below the water line, at We Make the Treasure, the second installment in our Over the Water series of large-scale commissioned artworks. By traversing layers of present-day experience and forgotten history, we invite you to investigate the visible and invisible forces that make something a treasure. Ephemeral, pulsing lines of air bubbles break the surface of the water between Piers 15 and 17, suggesting the ghostly outline of the Beeswing, a schooner that sank on February 17, 1863, as it returned to San Francisco from Monterey. Near the bubbling wreck is a rowboat loaded with mysterious cargo. Visitors are invited to interact with the imagined treasure of the Beeswing by using a crane to find and exchange a haul comprised of coin-sized objects of indeterminate value. We Make the Treasure is curated by the Exploratorium’s Center for Art & Inquiry in collaboration with the Studio for Public Space. Nato Thompson, chief curator of Creative Time in New York, served as advising curator.

00:05:16
Ever notice a brick-lined circle embedded into a street intersection? Keep an eye out and you'll see them throughout San Francisco. As part of the San Francisco Fire Department's Auxiliary Water Supply System, these brick circles indicate a cistern full of water. Join SFFD's Chief Ken Lombardi and Firefighter Hashim Anderson as they discuss the history and function of these cisterns, and demonstrate the drafting procedures used to access the water.

00:49:00
Join us as Rosetta moves ever closer to Comet 67P/Churyumov-Gerasimenko’s nucleus to map potential sites for a November landing.

00:15:00
Join Exploratorium Senior Scientist Paul Doherty as he scours the globe for the world'sgreatest science demonstrations. In the 'Try This' series, Paul introduces us to science teachers who are famed for teaching some of the best science lessons. Watch the webcast, see the activities, and then try it yourself!

00:30:00
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."

00:50:00
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."

00:50:00
Cheer on the competitors in this zany science cook-off, where teachers compete before a live audience at the Exploratorium for the sought-after title, "Iron Science Teacher." This week's ingredients can be found in your breakfast!

00:50:00
Where do fireworks come from? Who invented them? What causes their beautiful colors, and how do the bursting shells create such different patterns? Join us for some real illumination, and learn the difference between a jerb and a lance.

00:12:46
What is Community Radio? The DJs and station managers at KPOO, KUSF in Exile, Mutiny Radio and Radio Valencia give us some insight into community radio in the Bay Area, how it works and the challenges they face. http://www.kpoo.com/ http://savekusf.org/ http://pcrcollective.org/ http://radiovalencia.fm/