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#### Published on 26 Aug 2014 | over 3 years ago

This is birth video of world's simplest electric train. Thank you for watching from around the world.
(Run outside the coil) - youtu.be/Y1MDOerruDU
(Speed Battle) - youtu.be/yL0TRmprhEM

(How to make) - youtu.be/IXeXcbvBPJw

This “Train” is made of magnets copper wire and a dry cell battery.
Please enjoy watching this simple structure electric train (electromagnetic train).

- Previous title -
World's Simplest Electric Train 【世界一簡単な構造の電車】

【Structure and How to make】 ※日本語での説明は欄の下

It's possible to get such power using a dry battery, neodymium magnets (super strong magnets which plated with metal) and a bare copper wire.
A point is that a magnet's diameter is bigger than a dry cell battery's diameter.
And an electric current flows to a coil through a neodymium magnets, and a coil will be an electromagnet only in an area between the magnet and the magnet.
The electromagnet and a neodymium magnet poles repel each other at one side.
The other side poles pull against each other.
They work same direction, and it become a big force.
The phenomenon also continues at a movement destination.

※Another important point is magnets direction
(e.g.) NS battery SN

How about making this simplest electromagnetic train for science fair projects?

【My YouTube Channel】 In this video's URL

【Subscribe】
goo.gl/cckoxX

【動く仕組み・作り方】
youtu.be/IXeXcbvBPJw

ポイントは、磁石は乾電池の直径より大きいものを用いることです。
それによりコイルにはネオジム磁石を通して電流が流れ、磁石と磁石の間の区間だけはコイルが電磁石になります。
その電磁石と中のネオジム磁石が片側では反発し合い、片側では引き合い大きな推進力となります（同じ方向に力が働く）。
そして、それが移動先でも続きます
ただし、そのような動力を得るためには、磁極の向きが重要で、両端が同じ極、例えば、

NS 乾電池 SN

という具合にする必要があります。
お暇なときにお子さんたちと一緒に作って遊んでみてはいかがでしょうか。
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