Ingenious

Geothermal heating and cooling
This book can be read in one sitting. Author Jason Fagone introduces us to all the parties involved in the X prize race. The interesting participants, their background, how they heard of the prize, what they brought to the competition and how they ewnt about their design is all very well covered. The Shakedown was truly a nervous event to read about.
And did you know that Lindbergh too flew to Paris for a prize.