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How can a wind-powered sailboat move faster than the wind? Why do the America's Cup sails look like airplane wings? With the beginner in mind, Exploratorium senior scientist Paul Doherty introduces the basic physics of sailing and sail design. 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 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. 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/ 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. We all have an inner voice that pipes up now and then: "Don't eat that cake," it says, or "Where are my keys?" Does this type of self-talk serve any purpose? Recent research suggests that it does, helping us to build motivation and control impulses. Here, one man confronts the powerand the limitationsof his inner voice. This After Dark, the Exploratorium hit repeat on favorite memories. Guests explored the fascinating worlds of reminiscence and repetitionand then backwards skated through their own nostalgia on our temporary roller rink.
San Francisco's Exploratorium staff members let LGBTQ youth know that It Gets [way] Better in this video contribution to the "It Gets Better" Project.
If you are considering suicide, feel alone or need help, call the 24-hour confidential Trevor Lifeline: 866-488-7386 or visit thetrevorproject.org Throughout history, tattoos have represented conquests, coming of age, religion, spirituality, art, and even punishment. Today, tattoos are alive and thriving as a form of personal expression. How have modern techniques changed this art form? What are best practices in tattoo creation and care? Why are tattoos permanentand when are they not? Join us as we "talk tat" with artitsts Suzanne "Fishy" Shifflett and Tanya Wischerath of Modern Electric Tattoo in San Francisco.