This “Train” is made of neodymium magnets, copper wire and a dry cell battery. Please enjoy watching this simple structure electric train (electromagnetic train).
【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 (something 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
Thank you for reading.
Let's try to make it with children!
- Previous title - World's Simplest Electric Train (2) 【世界一簡単な構造の電車】