HOW do you test a new kind of rocket engine? Step 1: Bolt it to a trailer in the middle of the Mojave Desert. Step 2: Vroom!
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We Have Ignition! NASA Tests New Rocket Engine in Mojave Desert
Posted on August 30, 2007 by Charles Mazerolle
Make a Solar Water Heater for Less Than $5
Posted on August 15, 2007 by Charles Mazerolle
THIS PROJECT will create a DIY solar hot water heater for less than five dollars. It will also allow you to see the principles of solar water heating in action, and is highly customizable.
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