Another random fact
This is how photocopies are made… It is a 3 step process:
1. light reflected from the white parts of the original is focused onto a charged printing “drum,” where it locally dissipates charge;
2. positively charged toner particles are attracted to the remaining charged areas that were dark in the original;
3. paper is run over the drum to pick up the toner to create an image of the original.
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