In honor of the anniversary of the discovery of x-rays, a look inside the Foucault pendulum that used to live at the National Museum of American History.

Smithsonian Oceanographic Sorting Center (SOSC) staff member with chameleon specimens at Navy Yard laboratory, June 10, 1964, by Jack Scott.

See Here: a weekly photo feature showcasing images from the collections of the Smithsonian Institution Archives.

Museum visitor views dinosaur bone, the humerus (upper arm bone) of Brachiosaurus altithorax, on exhibit at Museum of Natural History, September 11, 1959, by Jack Scott.

See Here: a weekly photo feature showcasing images from the collections of the Smithsonian Institution Archives.

Amina Dickerson, Director of Education at the National Museum of African Art, 1974 to 1982, established African Heritage Month at the Smithsonian and led work to make the museum educational programs more accessible. #Groundbreaker

Dr. Richard L. Zusi, associate curator in the Division of Birds, Department of Vertebrate Zoology at the Museum of Natural History, examines bird skulls, August 31, 1964, by Jack Scott.

See Here: a weekly photo feature showcasing images from the collections of the Smithsonian Institution Archives.

Biologist and primate keeper, Melanie R. Bond, was the first woman gorilla keeper at the National Zoo and co-authored the "Orangutan (Pongo) Care Manual" for the Association of Zoos & Aquariums. #Groundbreaker

Taxidermist Sybil Costanzo works on zebra model at Museum of Natural History, September 2, 1959, by Jack Scott.