The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...

On Nov. 9, Heart Heavy Press will have its biggest event yet: a holiday card-making party that exemplifies the print shop’s ...

Catching up with the latest viral TikToks on your smartphone or getting lost in mobile gaming can be a strain on the eyes. E Ink alternatives are few and far between, and they can be pricey for what ...

This experiment features drawing with UV-reactive glowing ink under blacklight. The process explores line clarity, control, ...

Many ereaders are also waterproof, making them ideal to read by the pool or beach or while slipping into a bubble bath. Don’t try this with an iPad. They’re also more affordable than tablets, ...

The Messages app on iPhone has a lot of fun and cool features, like the invisible ink effect that will hide your messages.

The Notes app on iOS 26 gets an update that lets you create 3D graphs from functions you enter without needing another app or doing too much work.