Recent content by mariost

The homopolar motor uses a disc from neodymium magnet. Here the disc is from simple iron.

CAN ANYBODY EXPLAIN HOW IT WORKS? I made it after following the instructions from a video in the net and actually it works. I cannot understand how it happens. In this motor there are no coils , magnetic fields, magnets, and brushes.There are only two bearings connected by a...

You can use a watering computer with 4 or 6 stations and put to the input of its station relays to give controlled electric power to the electromagnets. I made a similar circuit to control an automatic door for my chiken coop. Otherwise toy can use...

A Tesla coil is an electrical resonant transformer circuit designed by inventor Nikola Tesla in 1891. It is used to produce high-voltage, low-current high frequency alternating-current electricity. Tesla tried to transfer energy with a wireless way. It was really difficult...

I am a s urvayor engineer from polytecnical school of Athens -Greece. I have as a hobby all kind of constructios .I am 57 years old. I have a small chanell in you tube "O MASTROGATOS" where I post some of my constructoions.They are mechanical or...

A very useful homemade construction. We can safely connect all kinds of rechargeable batteries. We need a car battery between 35-44 Ah (Here the battery is 100 Ah but we don't need so much current) , a strong relay from a scooter or a motorbike or from a...