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.

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A Response to Lars Andersen: a New Level of Archery

Published 9 years ago in Documentary

A response to this video

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A simple song

Published 7 years ago in Awesome. Submitted by Geekster

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A tourist joins street musicians

Published 8 years ago in Awesome. Submitted by Geekster

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• 12 comments
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A Very Smart Bird

Published 10 years ago in Animals. Submitted by dbomber69

Thirsty crow comes to humans for help

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