How do erasers actually work? It’s surprisingly complicated.
Erasers have a complex history and function that involves the interaction of graphite and paper. They work by using friction and adhesion to remove pencil marks, with the material of the eraser attracting graphite more than the paper does. Various types of erasers exist, each designed for different levels of precision and gentleness on paper.
- ▪The first erasers were made from stale bread and wax, evolving to natural rubber and eventually plastic.
- ▪Erasers work by creating a stronger attraction to graphite particles than the paper does, allowing them to be removed.
- ▪Different eraser types vary in softness and firmness, affecting their precision and gentleness on paper.
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Science Ask Us Anything How do erasers actually work? It’s surprisingly complicated. To err(ase) is human. By Harriet Weber Published May 20, 2026 8:56 AM EDT Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. The first erasers were made of stale bread and wax. Image: Richard Drury / Getty Images Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Email address Sign up Thank you! Terms of Service and Privacy Policy. Long before humans smacked “delete” to obliterate typos, we fixed mistakes and revised written language the old-fashioned way: by rubbing errors clean off the page.
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