Camera
8 of 15 from Photo quiz: Gear for green buildings
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The answer to the previous question is A. Wind and solar power sources need to have an inverter device to convert the high-voltage signal they generate to household-compatible alternating current.
Next question: This camera is:
A. a thermal imaging camera for finding holes in a building's insulation and air sealing.
B. a prototype of secret Apple product for filming movies about green buildings.
Answer and new question on next page. (Next one's tougher.)
March 16, 2009 4:00 AM PDT
Photo by: Martin LaMonica/CNET
