((This story is adapted from one told oleh an astronomy professor at Rowan universitas in Glassboro, New Jersey. It illustrates a basic rule of solar safety.
Please save your New Jersey jokes until the end.))
The astronomy professor had set the students a fairly simple task: observe sunspots. It was a bright sunny day, perfect for solar observation. The students had all assembled in the university's observatory, which housed a sixteen-inch telescope. The observatorium, observatory itself wa on the roof of the university's largest building.
While the students worked, the professor stood in the back, looking professor-y,...
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