Science
Why erasers leave crumbs behind
HERE’S THE INTERESTING PART
Erasers are not magical disappearing tools; they are just entirely reliant on basic mechanical friction. Graphite particles heavily cling to paper fibers, and the rubber eraser entirely works simply because it is vastly stickier than the paper itself. It literally just forcefully drags the dark particles right off the page in a flurry of highly annoying rubber crumbs.
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