Browse 1025 videos in category Documentary
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.
- 464 views
- 9 comments
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Robertson, Phillips, and the History of the Screwdriver
Published 4 years ago in Documentary. Submitted by sux2bu
Most everyone owns at least one screwdriver. But Canadians likely own a screwdriver that few outside Canada would recognize. The differing fates of the Robertson and the Phillips head screwdrivers demonstrates that innovation is intimately tied to historical events. The History …
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- 838 views
- 6 comments
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Skt. Clemens Bro, Aarhus (Denmark, 1902) (Restored Footage)
Published 3 years ago in Documentary. Submitted by thundersnow
I restored some old footage of Aarhus, Denmark. I used some software to colorize the footage and make the frame rate more smooth. I also enhanced the overall picture quality.
- 778 views
- 5 comments
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Modern History: A Funny Thing About Medieval Hoods
Published 5 years ago in Documentary. Submitted by sux2bu
A look at medieval hoods, how they're used, how they're worn and something you probably didn't know about them.
- 532 views
- 3 comments
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Let Them Eat Flies
Published 5 years ago in Documentary. Submitted by sux2bu
Go behind the scenes at an innovative "bug farm" in Ohio, where engineer and entrepreneur Glen Courtright harnesses the power of flies to turn food waste into sustainable fish feed.
- 436 views
- 1 comment
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