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Stephen Hawking's The Grand Design
Many silly things have been written and said about this book, mostly by people who haven’t read it. Too bad, it’s a very short and easy read... -
Faster than the wind
There is a vigorous debate going on about whether it’s possible to build a vehicle that uses only wind power to accelerate to a speed that is higher than the speed of the wind and in the same direction as the wind itself (a phenomenon referred to as Downwind Faster Than the Wind or DWFTTW). You can see a summary of the debate here and a video of an actual cart going at 2.8 times the speed of the wind here.