Browse 1025 videos in category Documentary

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Thumbnail of What happened to the Trans Europe Express

What happened to the Trans Europe Express

Published 4 years ago in Documentary. Submitted by Geekster

Thumbnail of Carnivorous Worms Catch Bugs by Mimicking the Night Sky

Carnivorous Worms Catch Bugs by Mimicking the Night Sky

Published 8 years ago in Documentary. Submitted by loadrunner

The glow worm colonies of New Zealand's Waitomo Caves imitate stars to confuse flying insects, then trap them in sticky snares and eat them alive.

Thumbnail of Biggest Empires in History

Biggest Empires in History

Published 5 years ago in Documentary. Submitted by sux2bu

In this video,on a World Map,I will be graphically showcasing you the biggest empires in World history. Note that these empires are ranked by SIZE not by POWER or INFLUENCE.

Thumbnail of 1934 Assassination of King Alexander of Yugoslavia

1934 Assassination of King Alexander of Yugoslavia

Published 3 years ago in Documentary. Submitted by manro

Thumbnail of A reality check on renewables - David MacKay on TED

A reality check on renewables - David MacKay on TED

Published 5 years ago in Documentary. Submitted by sux2bu

How much land mass would renewables need to power a nation like the UK? An entire country's worth. In this pragmatic talk, David MacKay tours the basic mathematics that show worrying limitations on our sustainable energy options and explains why we should pursue them anyway.