注目の話題: 女性の友達ってどうやって作れば良いですか？; どっちの妻がいい？; 独身、恋愛経験なし。これから何を目標に生きたらいいか？

Let's enjoy English!

No.334　13/02/15 23:03
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【Is it true the earth emits the radiation?】

We call the earth's core cold earth,but while the earth's diameter is about no less than 13.000kilometers,thickness of the earth's core is about no more than 30Kilometers.😃

However,temperature of its inside is no less than thousands degrees.We call it mantle.🌏

《The earth is a tremendous reactor》

Why is it so hot inside the earth?It's said when the earth was born it was melted and was such the high temperature because of the heat of friction and collisions,though it was 4.8 billion years ago.🌏

However the earth has emitted its heat so much that it becomes cooler than it used to be,but its inside has maintained its heat of thousands degrees,for the earth itself has given off heat.🌏

Its source of heat is thanks to atomic nucleus reaction 原子核反応 which has been done inside the earth.The earth is,so to speak,a huge reactor.🌏

《The radiation which has generated from the earth's inside》

There is the radiation which has leaked from the huge reactor,but…