Event Time: Thursday, September 19, 2019 | 4:00 pm - 5:00 pm
Event Location:
Hennings 201
Add to Calendar 2019-09-19T16:00:00 2019-09-19T17:00:00 Ensnared Between Hitler and Stalin: Refugee Physicists in the Soviet Union Event Location: Hennings 201
Event Time: Thursday, September 26, 2019 | 4:00 pm - 5:00 pm
Event Location:
Hennings 201
Add to Calendar 2019-09-26T16:00:00 2019-09-26T17:00:00 Trinity – Klaus Fuchs and the Security Services, from A bomb to Z pinch Event Information: Trinity was the codename for the test explosion of the atomic bomb in New Mexico on 16 July 1945. Frank Close tells the story of: the bomb's metaphorical father, Rudolf Peierls (Prof. Close's one time mentor in Oxford); his intellectual son, the atomic spy Klaus Fuchs; and the ghosts of the security services in Britain, the USA and USSR. Frank will reveal new insights from MI5 files in the British National Archives, and documents of the FBI and KGB. He has also overthrown a misconception lasting 60 years that J Edgar Hoover was central to Fuchs' exposure: the real hero was probably Britain's GCHQ. Documents that Fuchs sent to the USSR about the atomic and hydrogen bombs 70 years ago are still classified secret in the UK but access to these has become possible (in one case from Russia itself!), revealing new insights into Fermi's ideas about the hydrogen bomb and supporting a claim that Fuchs was the "grandfather" of the H bomb in the USA, UK and USSR. Event Location: Hennings 201
Event Time: Thursday, October 3, 2019 | 4:00 pm - 5:00 pm
Event Location:
Hennings 201
Add to Calendar 2019-10-03T16:00:00 2019-10-03T17:00:00 The Restoration of Early Sound Recordings using Optical Metrology and Image Analysis Event Information: Sound was first recorded and reproduced by Thomas Edison in 1877.  Until about 1950, when magnetic tape use became common, most recordings were made on mechanical media such as wax, foil, shellac, lacquer, and plastic.  Some of these older recordings contain material of great historical interest, but may be in obsolete formats, and are damaged, decaying, or are now considered too delicate to play.  Unlike print and latent image scanning, the playback of mechanical sound carriers has been inherently invasive.  Recently, techniques, based upon non-contact optical metrology and data analysis, have been applied to create and analyze high resolution digital images, and to restore the audio content, of these materials. This lecture will discuss the characteristics of early sound recordings and the use of this new technology as applied to a number of notable collections: field recordings of Native Americans and Canadians from the early 20th Century, the experimental sound recordings of Alexander Graham Bell, from the 1880s, and ethnographic recordings collected by Milman Parry in Yugoslavia in 1930, which led to the oral-formulaic theory of epic poetry. The technology and restoration of historic audio recordings will be illustrated with sounds and images.  Additional information can be found at http://irene.lbl.gov/ Event Location: Hennings 201
Event Time: Thursday, November 21, 2019 | 4:00 pm - 5:00 pm
Event Location:
Hennings 201
Add to Calendar 2019-11-21T16:00:00 2019-11-21T17:00:00 Quantum annealing with the D-Wave processor Event Location: Hennings 201