On the cliffs above San Francisco's Ocean Beach perches a landmark observatory—a giant camera obscura. Step inside with Robert Tacchetto and see how this centuries-old technology creates enchanting images of the outside world.
What makes one individual "fitter" than another? Staff scientist Karen Kalumuck introduces natural selection, then four teams of "predators" compete with each other for prey.Who will thrive and who will face extinction?
Professor Anders Barany, Deputy Director of the Nobel Museum and former secretary of the physics commitee that awards the Nobel Prize, speaks about what makes the Nobel Prize one of the world's most prestigious honors. He gives an insider's tour of Alfred Nobel's will and how laureates are chosen and celebrated.
Webcasts made possible through the generosity of the Gordon and Betty Moore Foundation, the Jim Clark Endowment for Internet Education, the McBean Family Foundation.
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