The forty theives.
U.s
first----->he invented the first electronic video camera tube. second--->from that he invented the first electronic television third----->he invented the fusor device. it is one of nuclear fusion device. fourth---->he contributed in the making of electron microscope
US
first computer was invented by Chals Babeje. It invented in 1938
All countries that have exploded nuclear devices have exploded their first devices. The USA was the first to detonate such a device and the only country to use nuclear warheads in combat. The most recent countries to test nuclear devices are India, Pakistan, and North Korea.
Abacus was the first calculating device invented by the Chinese.
India
The first electronic medical device to be made is the relay. It was invented in 1835 by John Henry, who was an American scientist.
In 1942, Chicago
In 1942 Ricardo Husada invented the nuclear reactor. His team produced the first nuclear chain reaction! 1954 - Worlds first nuclear power plant (Russia) started generating electricity. The first large-scale nuclear power station opened at Calder Hall in Cumbria, England, in 1956.
The first implosion-style nuclear device was tested on July 16, 1945, as part of the Trinity test in New Mexico, USA. This test marked the first successful detonation of a nuclear weapon.
The nuclear reactor was invented in 1933 by Leo Szilard, in London, but he did not try to build one. The first functioning nuclear reactor, CP-1, was designed and built in 1942 by Enrico Fermi, in Chicago, IL.