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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-4795
DTSTART:20180403T170500Z
DTEND:20180403T180000Z
DTSTAMP:20260419T002754Z
LAST-MODIFIED:20180402T131825Z
LOCATION:4274 Chamberlin (Refreshments will be served)
SUMMARY:The invention of public radio at the UW--Madison Physics Depar
 tment\, 1917-1919 \, Chaos & Complex Systems Seminar\, Jim Reardon\, U
 W Department of Physics
DESCRIPTION:From April 1917-March 1919 Prof. Earle Terry of the UW-Phy
 sics Department was able to continue research in wireless voice teleph
 ony--what we would now call AM radio--while all through the rest of th
 e world\, non-military radio research was halted by World War I. By th
 e end of this time\, he and graduate student Cyril Jansky were able to
  make triode vacuum tubes capable of dissipating more than 50 W\, allo
 wing his station 9XM to transmit voice intelligible at a range of 130 
 miles. Terry and Jansky freely shared their work with researchers at o
 ther Universities\, which contributed to the proliferation of College 
 and University radio stations in the 1920's\, the ancestors of what we
  now know as public radio. The talk will feature a replica of the orig
 inal 9XM transmitter\, constructed as part of the celebration of the c
 entennial of the Ingersoll Physics Museum. 
URL:https://www.physics.wisc.edu/events/?id=4795
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