A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits. 

The transistor is the fundamental building block of modern electronic devices, and is ubiquitous in modern electronic systems. First conceived by Julius Lilienfeld in 1926 and practically implemented in 1947 by American physicists John Bardeen, Walter Brattain, and William Shockley, the transistor revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things. The transistor is on the list of IEEE milestones in electronics, and Bardeen, Brattain, and Shockley shared the 1956 Nobel Prize in Physics for their achievement.
What is one use of a transistor?
What is a transistor in relation to modern electronics?
In what year was it conceived?
By whom?
How many years later was it implemented?
How many scientist were involved in implementation?
What field did the invention revolutionize?
And what two types of radios were developed after its implementation?
What one other item was smaller and cheaper afterwards?
And another?
What milestone List is this breakthrough in?
How many shared a Peace Prize?
integrated circuits
integrated circuits
the fundamental building block
the fundamental building block
1926
1926
Julius Lilienfeld
Julius Lilienfeld
1926 and practically implemented in 1947
1926 and practically implemented in 1947
John Bardeen, Walter Brattain, and William Shockley 3
John Bardeen, Walter Brattain, and William Shockley
electronics
electronics
cheaper
cheaper
calculators
 calculators
computers
computers
transistor
transistor
Bardeen, Brattain, and Shockley
Bardeen, Brattain, and Shockley