01 January 1970 01:00
Antique Spectacles & Other Vision Aids
Vision Aids are amazing! Their history is truly fascinating! As works of art, they have a beauty all their own!
Exploratorium: the museum of science, art and human perception
by 7 othersOnline since 1993, the Exploratorium was one of the first science museums to build a site on the World Wide Web. Our site now contains over 18 thousand award-winning Web pages exploring hundreds of different topics. We currently serve 20 million visitors a year. That makes us one of the most visited museum Web sites in the world.
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