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00:10:15
Looming over San Francisco since 1973, Sutro Tower's antennae transmit and receive radio and television signals to the nine-county SF Bay Area. Perched above Twin Peaks, the tower has become a local icon, now revered as much as it was abhorred when first built. Visit the tower with us to find out what’s on it, what’s underneath it, and its history, including its transformation from eyesore to icon.

00:15:00
Laura Welcher, Director of the Rosetta Project, introduces us to the Rosetta Disk, a three-inch puck of microscopically etched nickel and titanium documenting 1,500 human languages.

00:31:00
Join host Sarah Cahill as she interviews innovator, musician, and composer Roscoe Mitchell. Program 2 of the Resonance series at the Exploratorium.

00:24:00
Cheryl E. Leonard is a composer, performer, and instrument builder who creates instruments from unusual raw materials—everything from glass shards and pinecones to glaciers and box springs. This interview took place at the Exploratorium on October 10, 2013, just prior to her performance of Selections from Antarctica: Music from the Ice with Phillip Greelief.

00:26:22
Exploratorium film by Lynn Rosen and Steve Giordano for KVOS-TV, Bellingham, Washington, 1974

00:05:05
British artist and tinkerer Tim Hunkin takes a break from installing his latest creation for the Exploratorium — a massive, whimsical, kinetically sculptural clock featuring legions of tiny tinkerers at work — to discuss the clock’s inspiration and evolution over a proper English cup of tea.

00:06:46
With a roll of thin plastic diffraction grating and some "stolen" sunlight, artist and exhibit developer Pete Stephens transformed the interior of the Palace of Fine Arts into a dazzling riot of spectral color. As he works to recreate the effect at the new Exploratorium at Pier 15, Stephens recounts the challenges—and the inspiration—of this expansive experiment in light.

00:28:00
In this historical video from 1996, which was originally made for a museum floor installation, we learn about both the Palace of Fine Arts and the roots of the Exploratorium. This piece mixes footage from films in the Exploratorium's collection and interviews with historians, architects, and museum staff.

00:45:00
In today's webcast, Exploratorium hosts Ron Hipschman and Robyn Higdon will look at the tools and technology on the robotic arm of the Mars rover, Curiosity. What are some of the scientific instruments and capabilities of NASA's newest rover on Mars?

00:03:53
Fernando Abilleira, Ingeniero Español especializado en navegación y trayectorias quien trabaja para la NASA, describe como el astromóvil "Curiosidad" aterrizará sobre la superficie del planeta Marte en el cráter llamado "Gale", un lugar de alto inte