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first x-ray machine
On January 18, 1896 an X-ray machine was formally displayed by H.L. Smith. One of the first X-ray photographs was made of the hand of Röntgen's wife. The image displayed both her wedding ring and bones. -
radiation detector invented
Johannes Wilhelm Geiger, a German physicist,in 1908, while working with Ernest Rutherford, invented the device that detects ionizing radiation. We know it today as the Geiger counter. Alpha, beta, and gamma radiation can be detected using this common portable instrument. -
first atomic bomb
"Little Boy" atomic bomb that was dropped on hiroshima. -
second atomic bomb
"Fat Man" the second atomic bomb dropped on Nagasaki -
USS Nautilus
the USS Nautilus was the first nuclear sub. -
cumbria, england nuclear power plant
In 1956 Calder Hall, Sellafield (formerly known as Windscale) on the coast of the Irish Sea, Cumbria, England first full scale nuclear power plant built. -
three mile island nuclear power plant
The three mile island nuclear accident began at 4 a.m. on Wednesday, March 28, 1979, with failures in the non-nuclear secondary system, followed by a stuck-open pilot-operated relief valve (PORV) in the primary system, which allowed large amounts of reactor coolant to escape. -
chernobyl
Chernobyl considered the worst nuclear power plant disaster ever happened on 26 April 1986, in the Ukraine (then in the Ukrainian Soviet Socialist Republic, part of the Soviet Union).
