Date in year · 1947 · The 1940s
December 23, 1947
On December 23, 1947, the transistor is first demonstrated at Bell Laboratories. Moses Blah, Jerzy Stuhr, James Woods would arrive in the same year.
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1947
1940s
Featured · December 23, 1947
The transistor is first demonstrated at Bell Laboratories.
A transistor is a semiconductor device used to amplify or switch electrical signals and power. It is one of the basic building blocks of modern electronics. It is composed of semiconductor material, usually with at least three terminals for connection to an electronic circuit.
Around 1947
The year in brief
1947 (MCMXLVII) was a common year starting on Wednesday of the Gregorian calendar, the 1947th year of the Common Era (CE) and Anno Domini (AD) designations, the 947th year of the 2nd millennium, the 47th year of the 20th century, and the 8th year of the 1940s decade.
What happened
On December 23, 1947
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1947 The transistor is first demonstrated at Bell Laboratories. Solid-state electrically operated switch also used as an amplifier
A transistor is a semiconductor device used to amplify or switch electrical signals and power. It is one of the basic building blocks of modern electronics. It is composed of semiconductor material, usually with at least three terminals for connection to an electronic circuit.
Elsewhere that year
Other moments from 1947
- April 1 The only mutiny in the history of the Royal New Zealand Navy begins.
- April 15 Jackie Robinson debuts for the Brooklyn Dodgers, breaking baseball's color line.
- April 16 An explosion on board a freighter in port causes Texas City in the state of Texas, United States, to catch fire, killing almost 600 people.
- April 16 Bernard Baruch first applies the term "Cold War" to describe the relationship between the United States and the Soviet Union.
- April 18 The Operation Big Bang, the largest non-nuclear man-made explosion to that time, destroys bunkers and military installations on the North Sea island of Heligoland, Germany.
- April 28 Thor Heyerdahl and five crew mates set out from Peru on the Kon-Tiki to demonstrate that Peruvian natives could have settled Polynesia.
The class of 1947
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