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Even in the face of precision guided missiles, tanks have continued to dominate the battlefield. Todays battle tanks are high-technology war machin...

Even in the face of precision guided missiles, tanks have continued to dominate the battlefield. Todays battle tanks are high-technology war machin...

Even in the face of precision guided missiles, tanks have continued to dominate the battlefield. Todays battle tanks are high-technology war machin...

The destroyer has long been the workhorse of modern navies. Come aboard its latest incarnation, the US Navy's DDG-51 Arleigh Burke. Wearing many ha...

The destroyer has long been the workhorse of modern navies. Come aboard its latest incarnation, the US Navy's DDG-51 Arleigh Burke. Wearing many ha...

The destroyer has long been the workhorse of modern navies. Come aboard its latest incarnation, the US Navy's DDG-51 Arleigh Burke. Wearing many ha...

Planes That Never Flew - The American SST - Boeing 2707 Part 4 of 4

Planes That Never Flew - The American SST - Boeing 2707 Part 3 of 4

Planes That Never Flew - The American SST - Boeing 2707 Part 2 of 4

Planes That Never Flew - The American SST - Boeing 2707 Part 1 of 4

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Discovery Channel's 2010 documentary: Secrets of the Secret Service

Discovery Channel's 2010 documentary: Secrets of the Secret Service

Discovery Channel's 2010 documentary: Secrets of the Secret Service

Discovery Channel's 2010 documentary: Secrets of the Secret Service

Discovery Channel's 2010 documentary: Secrets of the Secret Service

The Aircraft Nuclear Propulsion program researched and developed two main systems of nuclear powered jet engines. The Direct Air Cycle program was ...

The Aircraft Nuclear Propulsion program researched and developed two main systems of nuclear powered jet engines. The Direct Air Cycle program was ...

The Aircraft Nuclear Propulsion program researched and developed two main systems of nuclear powered jet engines. The Direct Air Cycle program was ...

The Aircraft Nuclear Propulsion program researched and developed two main systems of nuclear powered jet engines. The Direct Air Cycle program was ...

The Aircraft Nuclear Propulsion program researched and developed two main systems of nuclear powered jet engines. The Direct Air Cycle program was ...

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SERIES 6 EPISODE 3 (Part 1 of 1) - One or two...

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Bruce Bueno de Mesquita, author of The Predictioneer's Game, shares his foolproof method for getting your next car...

http://bigthink.com/ideas/4...

We'll have to recalibrate everything -- the age of the universe, the age of stars, the distance to the stars, the ...