Learn how to make a simple lemon battery and use it as an emergency phone charger in this hands-on science experiment. Watch ...

We all carry supercomputers in our pockets and use dozens of electric gizmos every day but rarely stop to marvel at the magical act of flicking a switch. Use your ordinary conducting and extraordinary ...

Forbes contributors publish independent expert analyses and insights. I write about physics, science, academia, and pop culture. I got an advance copy of Anil Ananthaswamy's forthcoming Through Two ...