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Full Program: A team tests a theory on how the ancient stone statues were moved, using a 15-ton replica. 53:07
Bracing One World Trade Center's steel frame led to some unexpected perks at the worksite. 02:46
Full Program: The Panama Canal connects the world's two largest oceans. 01:22:11
Shaundra Daily designs computer software that teaches children how to learn and how to learn about themselves. She's also an absolutely stellar jazz and hip-hop dancer. 01:43
Dr. Sri Sritharan is the Associate Chair for Graduate Study & Research and Wilson Engineering Professor at Iowa State University. He explained to what extent Japan’s buildings, or nuclear... 14:00