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For the term "how to make homemade bearing heater".

How to make an aluminium air battery selfmade homemade DIY batteries

Copy of a video from youtube user: www.youtube.com He gave me permission to post it on my channel. Please go to his channel for more on this video. Many thanks. PS: With a electrolyte made from K2CO3 and water you can get almost double the voltage, so …

Do It Yourself: Simple Passive MagLev Bearing System

As you see. Rude and crude assembly of the maglev bearing system. The popular “mendocino bearing” type of magnetic passive levitation and bearing arrangement. Passive because it’s all permanent magnets (and gravity), no electromagnets…