 |
You
Got It! |
 |
 Mark Helmlinger |
It's no
movie prop!
Mark Helmlinger, a physicist at Jet Propulsion
Laboratory in Pasadena, California, uses the CIMEL Electronique 318A,
which is a solar-powered spectral radiometer that measures sunlight. Robotically
controlled, it can be pointed directly at the center of the sun, and it
can also measure sky radiance.
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