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Periodic Graphics: How do friction-erasable pens work?

September 15, 2026
Periodic Graphics: How do friction-erasable pens work? Periodic Graphics: How do friction-erasable pens work?



Chemical educator and <i>Compound Interest</i> blogger Andy Brunning explores the chemistry that makes friction-erasable pen ink appear and disappear



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September 15, 2026
byStaff Writer
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