How does an astrophysicist bake cookies?

With a solar oven, of course! Astrophysicist Charles Greeley Abbot, second director of the Smithsonian Astrophysical Observatory and fifth secretary of the Smithsonian, invented a solar oven in 1940. Solar energy was transmitted by mirror to a square oven where cakes and cookies could be baked. Solar Sweets Questions come alive at  

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