Description: On October 5, 2021, the Smithsonian announced that Tamar Evangelestia-Dougherty will be the new director of the Smithsonian Libraries and Archives, effective Nov. 6.
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
Description: [edan-image:id=siris_arc_391596,size=250,left]Ferdinand Vandeveer Hayden, a geologist and original Megatheria, was an eccentric club member, according to Robert Kennicott. Hayden’s early life began in Westfield, Massachusetts on September 7, 1828. Hayden’s parents, Asa Hayden and Melinda Hawley, were a somewhat troubled pair. His father, an alcoholic, passed away when Hayden