Etiqueta 'Rocket science'
George Dyson on Project Orion
Author George Dyson spins the story of Project Orion, a massive, nuclear-powered spacecraft that could have taken us to Saturn in five years. His insider’s perspective and a secret cache of documents bring an Atomic Age dream to life.
Burt Rutan sees the future of space
In this passionate talk, legendary spacecraft designer Burt Rutan lambasts the US government-funded space program for stagnating and asks entrepreneurs to pick up where NASA has left off.
Steve Jurvetson on model rocketry
Moneyman Steve Jurvetson takes TEDsters inside his awesome hobby -- launching model rockets –- by sharing some gorgeous photos, his infectious glee and just a whiff of danger.
Why Earth may someday look like Mars
Every minute, 400 pounds of hydrogen and almost 7 pounds of helium escape from Earth's atmosphere into outer space. Astrophysicist Anjali Tripathi studies the phenomenon of atmospheric escape, and in this fascinating and accessible talk, she considers how this process might one day (a few billion years from now) turn our blue planet red.