3 Ted Videos

http://www.ted.com/talks/ben_kacyra_ancient_wonders_captured_in_3d.html
Ben Kacyra invented a laser 3D scanning system that captures the monument/object in its original state. It captures history and preserves it in a 3D model.

http://www.ted.com/talks/david_hoffman_shares_his_sputnik_mania.html
A film maker named David Hoffman shows how the Soviet Union launched Sputnik, which led to the Race to Space and more education of nature/space.

http://www.ted.com/talks/the_cockroach_beatbox.html
A neurosurgeon shows how the brain works, receiving electronic pulses by dissecting a cockroach.