Description: When curators at the Smithsonian National Museum of American History looked at seven radiometers in storage, they learned the instruments had been at the Smithsonian for nearly one hundred fifty years.
Description: In celebration of Archives Month, join us Monday, October 27th, 10am to 4pm ET, where four of our archivists specializing in audio/visual material, photos, and digital records (or electronic records) will be on the Smithsonian's Facebook page to answer questions about your own archival collections. Questions from our readers in the past have ranged from storing letter and
Description: Open source tools, CERP, JHOVE, DROID, Heritrix, for electronic records archivists to use in preserving digital files like WAV, PST, websites, and email.
Description: After successfully completing his 1925 European business trip, 29-year-old Watson Davis headed home on the S.S. Republic, boarding at Cherbourg, France, on October 2. The science journalist had covered the annual meeting of the British Association for the Advancement of Science and discussed with Sir Richard Gregory (Editor of the journal Nature) the plausibility of
Description: [edan-image:id=siris_arc_287602,size=250,left]As a child in England in the 1930s, Oliver Sacks enjoyed playing with his Uncle Abe’s spinthariscope. It was, he would later recall, “a beautifully simple instrument, consisting of a fluorescent screen and a magnifying eyepiece, and inside, an infinitesimal speck of radium.We take a look at the spinthariscope at the Smithsonian.
Description: The term “personal equation” came into use in the 19th century as scientists found that observers have inherent biases: some anticipate events, and some report events after they have occurred. Recognition of the problem led to a spate of personal equation instruments: some measured biases of this sort, and some reduced the effect of personal errors. Most of these