Iowa Public Television

• Related Video

• Now Playing

  NOVA | Engineering Ground Zero |... (#3811)

  Developer Larry Silverstein explains what's different about the new 7 World Trade Center. 01:48

• Play Video

  NOVA | Engineering Ground Zero... (#3811)

  Full Program: Designing and building One World Trade Center and the National 9/11 Memorial and Museum 53:07

• Play Video

  NOVA | Engineering Ground Zero |... (#3811)

  Bracing One World Trade Center's steel frame led to some unexpected perks at the worksite. 02:46

• Play Video

  NOVA | Engineering Ground Zero |... (#3811)

  One World Trade Center's glass facade may look fragile, but it is extraordinarily tough. 02:26

• Play Video

  NOVA | Engineering Ground Zero... (#3811)

  Designing and building One World Trade Center and the National September 11 Memorial & Museum 00:30

• Play Video

  NOVA | Building the Great... (#3711)

  How did medieval builders reach such spectacular heights using only hand tools to create the great cathedrals? NOVA... 00:36

• Play Video

  NOVA | Engineering Ground Zero...

  Architect and designer Michael Arad takes us on a tour of his 9/11 Memorial mock-up. 01:52

• Play Video

  NOVA | Engineering Ground Zero...

  Visit the factory where the 9/11 Memorial plaques are made. 02:29

• Play Video

  NOVA | Ultimate Mars Challenge... (#3915)

  Full Program: NASA employs a "sky crane" maneuver to land the Curiosity rover on Mars. 53:06

• Play Video

  NOVA | Mystery of Easter Island... (#3914)

  Full Program: A team tests a theory on how the ancient stone statues were moved, using a 15-ton replica. 53:07

• Play Video

  NOVA | Building the Great... (#3711)

  Full Program: How did medieval engineers construct magnificent skyscrapers of glass and stone? 53:08

• Play Video

  NOVA | An Interview With...

  Watch a rare interview with the late Apple visionary, conducted in 1990. 50:19

• Play Video

  NOVA | How the 1918 Flu Infected...

  The 1918 flu virus infects deep in the lungs, which may have made it more deadly. 00:25

• Play Video

  NOVA | Australia's First 4... (#4009)

  Full Program: Australia’s landscape holds clues to Earth's early history and the beginning of life. 53:08

• Play Video

  NOVA | Ancient Computer | PBS (#4007)

  Full Program: Learn about the world’s first computer, which was found in a Greek shipwreck. 52:53

• Play Video

  NOVA | Meteor Strike | PBS (#4013)

  Full Program: A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time? 52:53

• Play Video

  NOVA | Mind of a Rampage Killer |... (#4008)

  Join Miles O'Brien and learn how much science can tell us about a brain at risk for violence. NOVA "Mind of a Rampage... 00:31

• Play Video

  NOVA | Building Pharaoh's... (#4005)

  Airing February 6, 2013 at 9PM/8c on PBS // Military historian Mike Loades explores the weapons that the ancient... 04:50

• Play Video

  NOVA | Rise of the Drones | PBS (#4003)

  Full Program: Meet a new breed of flying robots, from tiny swarming vehicles to giant unmanned planes. 52:52

• Play Video

  NOVA | Decoding Neanderthals | PBS (#4002)

  Full Program: Shared DNA reveals a deep connection with our long-vanished human cousins. 53:07

• Watch more video from this program

Post Date: September 1, 2011