"This black t-shirt, which says “Silence = Death” with a pink triangle, symbolizes the struggle against AIDS.
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“"It was now quick work," Maria Mitchell noted. "As the last rays of sunlight disappeared, the corona burst out all around the sun, so intensely bright near the sun that the eye could scarcely bear it." Maria Mitchell brought a team of Vassar graduates—"Vassar girls" as the press called
Between the years 1790 and 1880 the U.S. Patent Office required both documentation and a three-dimensional working model to demonstrate each new invention submitted for a patent. The models helped to explain proposed innovations and compare them against similar inventions. In this online exhibiti