Discover how to build a DIY magnetic stirrer from basic materials in this easy-to-follow tutorial. Perfect for mixing tea, coffee, or even for science experiments, this homemade magnetic stirrer uses ...
Discover how to build a simple homopolar motor using everyday household items in this easy-to-follow tutorial. Learn the ...
China currently accounts for around 60% of global rare earth mining, according to the International Energy Agency, and about 90% of refining (including ore mined in and shipped from the U.S.). It also ...
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