March 12, 2011
Some have answered that "none of the nuclear power plants have exploded in Japan"
This is technically true. The explosion at the power plant was actually of hydrogen gas in a containment building. It was not a "nuclear" explosion. It was not an explosion of the power generation material. The water used to cool the nuclear rods became so hot that the hydrogen was split off the water molecules. Eventually enough hydrogen collected that it exploded. That is what you see in the video linked above.
There were two such explosions. This is the second.
Because of the earthquake and the tsunami that followed, Japan got a pretty good "shake" causing the nuclear plants to explode with the possibility of nuclear radiation leaking.
a build up in hydrogen
the reactor over heated and the fail safe shut down failed
No, a nuclear weapon needs a specific geometry to detonate, and it has to be held in this position by very high explosives to keep it in this shape. In a nuclear reactor, if the reactor core goes critical then the force of the expanding coolant will blow the reactor apart, preventing a nuclear blast.
This can be used to blow up enemy ships (e.g E12)
Japan (Fukashima Plant I). Four Reactors blow and melt down. Radiation spread throughout all of Japan.
it caused a tsunami which then hit Japan and causes a big nuclear center to blow up and everyone got scared because of the high radiation levels
Because you can blow people with the nuclear powers
The Trinity Test was the first test of a nuclear device. The bomb detonated at the trinity test was an implosion-type plutonium bomb nicknamed 'the gadget' the bomb was the same type of bomb that was dropped on Nagasaki Japan.
No. Define "blow up". Power plants have malfunctions that can kill people, unrelated to nuclear fuel. Nuclear elements can be arranged to blow up but you have to get everything exactly right. More danger exists from exposure to the fuel, if it has been activated.
A steam explosion from flash evaporation of coolant water. This is what blew up Chernobyl.A chemical hydrogen/oxygen gas explosion caused by build up of hydrogen gas in the plant when water decomposes on contact with overheated zirconium fuel rod cladding.A nuclear explosion in a nuclear reactor is not possible, the fuel cannot be assembled into a supercritical mass configuration fast enough (~1ms) as this would require explosives. If the reactor core did suddenly go slightly supercritical, the energy release would simply cause a brief partial meltdown, restoring the material to a subcritical configuration. This could trigger a steam explosion that ejected parts of the reactor core (as happened at Chernobyl) but no nuclear yield would occur.
Japan had an earthquake and tsunami which caused and radioactive blow.
it will blow up
of course not