注目の話題: 高熱だと知り長時間放置; 母親の誕生日プレゼント何が良い？; 彼氏と分かり合えない。納得できない

Let's enjoy English!Ⅱ

No.38　13/08/12 10:58
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【Is the criticality a terrible phenomenon?】

《A Chain reaction》

There is little probability in which the neutrons like grains of sands come into the atom of the uranium like the huge domed baseball stadium,and collide with the atomic nucleus like the pachinko ball.😚

A lot of grains of sands come out of the domed baseball stadium before they collide with the pachinko balls,and they'll get out of the lump of the uranium itself finally.💨

《The amount of the criticality》

However,if the lump is comparatively bigger than we expect,what will happen?The neutrons will discover the atomic nucleus before they come out,and they cause the atomic fission.⚠

In this way,when there is little amount of the voluntary matter of atomic fission,it's no problem,but if the uranium exceed some amount of lump,it'll ignite the chain reaction.We call the quantity the amount of the criticality.🔥