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00:24:58
Join the Exploratorium as we connect live for the first time with the E/V Nautilus as it sails the Mediterranean Sea south of Spain. We talk with scientists on the ship and learn about the ship's amazing capabilities and the 2011 exploration mission.

00:01:27
In this audio slideshow, meet the exploration vessel Nautilus and learn about its 2011 mission in the Mediterranean Sea and Atlantic Ocean. (Images copyright Institute for Exploration / Ocean Exploration Trust.)

On August 4, 2011 After Dark Blue delved into the color of cool with explorations of indigo, underwater vision, color photography, and blues performances by Lady Bianca, Bobbie Webb, and Fillmore Slim.

00:01:47
An impression of recent activity in the yacht harbor near the Exploratorium.

00:04:56
Weaving our present location with our future location.

00:03:53
Join Exploratorium educator Ken Finn as he unlocks the mystery behind the black sand (a.k.a. magnetite) at Ocean Beach. This piece explores the origin of magnetite in the Sierra Nevada mountains, its journey down the Sacramento and San Joaquin rivers to the Bay, and the interesting physical properties of this mineral, plus some fun things you can do with it.

00:05:30
Goerte once described architecture as "frozen music," observing their common foundation in mathematics, geometry, and aesthetics. But what is the sound of a skyscraper? A warehouse? A bridge? Here we explore the connections between architecture and music, juxtaposing San Francisco buildings with musical compositions influenced by architecture. This experimental segment of Science in the City asks more questions than it answers.

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."

Like the Golden Gate Bridge, San Francisco's cable cars are world-renowned as emblems of our city. Join us for a ride down Hyde Street as we investigate what makes these historic cars go—and more importantly, stop—on the steep hills of San Francisco. To learn more visit the Cable Car Museum website: http://www.cablecarmuseum.org/index.html

00:01:51
Construction of Pier 15 from March 11th through May 27th of 2011. Images courtesy of Nibbi Construction. Music by Wayne Grim.