注目の話題: この場合の気遣いが分からない…; 友達いなくなった; どうしたら幸せになれますか？

science,math and English

No.84　11/11/12 18:16
名無し0 ( 50代 ♂ ) あ+あ-

【What's a magnetism?】

『Magnetism is generated from a spin of electrons』

Magnetism is a power which attracts three kinds of metal such as iron,cobalt,and nickel.We usually call a thing which has the magnetism a magnet and the magnet has magnetic pole such as positive one and negative one.😃

Direction of a magnetic field sets the negative pole and positive pole.By the way,how is the magnetism generated?☝

An atom which is the smallest unit of a thing is made up of an atomic nuclear and some electrons.The atomic nuclear is at a center of the atom and electrons circle around the atomic nuclear.

When circling around the atomic nuclear,the electrons themselves are also rotating.We call a rotations of the electrons spin.The spin of the electron generates the magnetic field and magnetism.💡

『There is one thing which becomes a magnet and another which doesn't.』