Philadelphia College students experiment in physics laboratory c. 1933.

Philadelphia College students experiment in physics laboratory c. 1933.

Credit: Wellcome Collection Description: Founded in 1821, the Philadelphia College of Pharmacy and Science was the first college of pharmaceutical sciences in the United States Publication/Creation: publisher not identified. Physical description: photograph silver gelatin.   Source: Philadelphia College of Pharmacy and Science: students experimenting in a physics laboratory. Photograph, c. 1933. |

Saguaro Sunset, Arizona.

Saguaro Sunset, Arizona.

Today’s Photo Of The Day is “Saguaro Sunset” by Kim Hang Dessoliers. Location: Arizona, United States of America Photo of the Day is chosen from various OP galleries, including Assignments, Galleries and the OP Contests. Assignments have weekly winners that are featured on the OP website homepage, Facebook, Twitter and Instagram. Source: Photo Of The … Continue reading

The Floating Houses of Lake Bokodi.

The Floating Houses of Lake Bokodi.

Lake Bokodi, in the village of Bokod, about 80 kilometers west of Budapest, Hungary, is an artificial lake created in 1961 by the Oroszlány Thermal Power Company by flooding a low-lying meadow next to the plant. The power plant draws cold water from the lake to operate its boilers, and warm water is returned back … Continue reading