Twelve clever pen tricks showcase how motion science and subtle misdirection can fool the human eye. Many illusions rely on ...

Stressed out by hot-button issues? Politicized science? Chemistry Lessons From Hell? Relax. Here are some quirky chemistry tricks that require little brain power. I've even explained how they work.

Discover three exciting DIY hacks in this video! Learn how to make a smartphone-powered vibration gadget, perform a clever ...