The year 1925 in science and technology included many events, some of which are listed here.

Contents

1 Biology 2 Technology 3 Awards 4 Births 5 Deaths

Biology

• July 21 - Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching evolution in class and fined $100.

Technology

• June 13 - Charles Francis Jenkins achieves the first synchronized transmission of pictures and sound, using 48 lines, and a mechanical system. A 10-minute film of a miniature windmill in motion is sent across 5 miles from Anacostia to Washington, DC. The images were viewed by representatives of the Bureau of Standards , the U.S. Navy, the Commerce Department , and others. Jenkins called this "the first public demonstration of radiovision"

Awards

• Nobel Prizes
  • Physics - James Franck, Gustav Ludwig Hertz
  • Chemistry - Richard Adolf Zsigmondy

Births

October 31 - John Pople (d. 2004), British Nobel prize winning Chemist.

Deaths

• February 3 - Oliver Heaviside (b. 1850), physicist.
• June 22 - Felix Klein (b. 1849), German mathematician.
• July 26 - Gottlob Frege (b. 1848), mathematician.