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What is light? How is it made? In this video, staff physicist Ron Hipschman will talk about and demonstrate light, it's features and various ways it can be made as well as how colors mix. Exploratorium neuroscientist Richard Brown discusses how we see color, how color vision evolved, why color vision varies from person to person, and how the scientific understanding of color vision has led to technologies such as color photography Join the Exploratorium for our final webcast with researchers on board the Nautilus. We discuss the highlights of their three month expedition to the Mediterranean and Black Seas, as well as to the eastern Atlantic Ocean. Learn about hydrothermal vents, organisms living in extreme environments and ancient shipwrecks. Have you ever wondered where your plastic bottle goes after you toss it in the recycling bin? Take a little trip with us to the San Leandro Waste Management facility, where Rebecca Jewell tours us through the complex world of residential recycling. Best known for his discovery of the wreck of the RMS Titanic, Nautilus expedition leader Dr. Robert Ballard is one of the world's most famous ocean explorers. In this webcast, we talk live with Dr. Ballard as he explores the Mediterranean's Straits of Sicily. Learn about the Nautilus' latest discoveries and the history of ocean exploration. In an unlikely corner of industrial southeastern San Francisco, a herd of 60 goats gambol on a 10-acre site ringed by a rail yard and a cement recycling plant. Meet the movers and munchers behind City Grazing, a local “rent-a-goat” service that provides an ecological alternative to lawn mowers and herbicides.
To learn more visit: http://citygrazing.com/ The Nautilus has discovered several well-preserved shipwrecks on their mission, from ancient Greek trading vessels to modern sailboats. Join us as we talk with chief scientist Katy Croff Bell live aboard the Nautilus and see the latest video of their discoveries. Take a look at the construction at Piers 15 and 17 from a different vantage point. This past August we recorded video of the Exploratorium's new home from a boat about 100 yards off the back of the piers. Award-winning Bay Area artist Veronica De Jesus teaches painting and drawing at The National Institute of Arts and Disabilities (NIAD) in Richmond, California. In this episode, De Jesus introduces us to NIAD and its resident artists, and shares how her own art practice is nourished by her work there. Located in the Atlantic Ocean off the coast of Portugal, the seamounts of Gorringe Bank rise nearly 5000 meters from the sea floor -- as tall as Europe's Alps. Join us as we talk live with scientists aboard the Nautilus as they explore these geologically active and biologically rich submarine mountains.