Deborah Warner

Deborah Warner is a curator in the Division of Medicine and Science at the Smithsonian Institution's National Museum of American History. She specializes in the history of science and technology, especially scientific instruments.

Dutch Color Standards: How the U.S. Taxed 18th-Century Sugar

Dutch Color Standards: How the U.S. Taxed 18th-Century Sugar

Designed to determine where a sugar sample stood on the continuum from raw to refined, the Dutch Standards protected domestic refiners. More »

The World's Largest Collection of Historic Water Meters

The World's Largest Collection of Historic Water Meters

The Smithsonian's National Museum of American History has 108 meters made in the U.S. between the 1890s and 1970s More »

The Biggest Story in Photos

Photos of Tornado Damage in Moore, Oklahoma

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