Aluminium Oxide (Al 2 O 3) or alumina is one of the most versatile of refractory ceramic oxides and finds use in a wide range of applications. It is found in nature as corundum in emery, topaz, ...
We’ve seen hundreds of ways to create your own PCBs at home. If you have a laser printer, you can put traces on a piece of copper clad board. If you have some hydrogen peroxide and acid, you can etch ...
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