Browse 994 videos in category Documentary
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.
- 433 views
- 9 comments
A look at medieval hoods, how they're used, how they're worn and something you probably didn't know about them.
- 487 views
- 2 comments
Democratic socialists in the United States point to Sweden as a socialist success. But Swedish historian Johan Norberg says, "Sweden is not socialist."
Many people think Sweden is socialist, but its success comes from free markets.
- 510 views
- 8 comments