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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Extreme Railbiking is about a bunch of fanatic railbikers that have been riding for over 40 years. Abandoned Railroads are scattered around the world. Rail Bikes must be properly designed to be safe. This video takes place on the Camas Prairie Railroad,
now named the Bountiful Grain & Craig Mountain Railroad. Much beautiful nature to see and enjoy while riding.
- 638 views
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