July 27

You all know your Lab! One hundred percent of the entries this week were correct.

The winner of 499 Bucketlist points is:

Jennifer Doyle, a mechanical engineer in the Lab's Engineering Division, who correctly guessed the current location of the photo as well as who was in it.

In this archival photograph from early 1946, J. Robert Oppenheimer (left) and Glenn T. Seaborg watch as Ernest Orlando Lawrence controls the magnet of the 184-inch cyclotron, which was being converted from a wartime calutron, used to enrich uranium, back to its original purpose as a cyclotron. The massive 184-inch cyclotron was housed in the 1930s-era dome designed by Arthur Brown, Jr., the architect of Coit Tower in San Francisco. Today, the landmark dome is home to Berkeley Lab’s Advanced Light Source.

Photo Credit: Berkeley Lab