2008 41¢ American Scientists: John Bardeen
US #4227 – from the American Scientists issue

Physicist John Bardeen was born on May 23, 1908, in Madison, Wisconsin.  Bardeen helped develop the transistor, which made possible the invention of almost every modern electronic device.

The son of the first dean of the University of Wisconsin Medical School, Bardeen graduated from high school when he was 15 years old.  He went on to attend the University of Wisconsin, earning a degree in electrical engineering in 1928 and a Master of Science degree in 1929.

2008 41¢ John Bardeen Fleetwood First Day Cover
US #4227 – Fleetwood First Day Cover

Bardeen then spent a few years working as a geophysicist for Gulf Research Laboratories, but left to go to Princeton where he earned a PhD in mathematical physics in 1936.  Bardeen then accepted a teaching position at the University of Minnesota, Minneapolis.  He remained there until 1941, when he left to work as principal physicist at the US Naval Ordnance Lab in Washington, DC.  During World War II, he led a group that designed magnetic mines and torpedoes.  While in DC, Bardeen turned down an invitation to join the distinguished scientists of the Manhattan Project, who were developing the atom bomb.

When World War II ended, Bardeen accepted a research position at Bell Laboratories.  There, along with Walter Brattain and William Shockley, he invented the transistor in 1947.  Fifty times smaller than the vacuum tubes it replaced in televisions and radios, the transistor made possible the development of almost every modern electronic device, from telephones to missiles.  The transistor made miniaturization possible and opened the door for the production of pocket-sized radios and later, computer parts.  The three scientists were awarded the Nobel Prize for their work in 1956.

1973 8¢ Progress in Electronics: Transistors and Printed Circuit
US #1501 – from the Progress in Electronics issue

Bardeen left Bell to teach at the University of Illinois, Urbana-Champaign in 1951.  While there, he set up two research programs.  In the Electrical Engineering Department he focused on semiconductors and in the Physics Department he explored superconductivity.  There, along with Leon Cooper and John Schrieffer, Bardeen developed a theory of superconductivity, which in 1972, earned him a second Nobel Prize in Physics.

1973 8¢ Transistors and Printed Circuit Plate Block First Day Cover
US #1501 – Plate Block First Day Cover

In addition to his two Nobels, Bardeen earned several other awards during his life including the National Medal of Science, the Franklin Medal, and the Presidential Medal of Freedom.  Bardeen died of heart disease on January 30, 1991.

1973 8¢ Transistors and Printed Circuit Colorano Silk Cachet First Day Cover
US #1501 – Colorano Silk Cachet First Day Cover

Click here for a neat video about Bardeen.

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