PITTSBURGH (KDKA) -- Some things are very sensitive when it comes to temperatures, and we are going to do an experiment that uses a temperature sensitive ink. "Temperature sensitivity" means that the ...

Q: Remember the erasable pen? It's easy to see how it's different from a regular pen, but why not just use a pencil instead? A: The erasable pen, incredibly popular when introduced back in the early ...

All products featured on WIRED are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. Back in 1979, the ...

How do erasable pens work? #urday #macro #closeup #howitworks ...

TOKYO -- Japanese stationery maker Pilot's Frixion Ball erasable ink pen has come a long way since it debuted about a decade ago, becoming a huge hit with people who, well, make mistakes. But what few ...