A changing magnetic field induces a current in a conducting wire. Yes, that's cool - but it's also important. This physics principle behind many of the electric generators (but not all).

Our rating: False. Based on our research, we rate FALSE the claim that a compass wouldn't work if Earth is spherical. Compasses orient themselves to the Earth's magnetic field lines.

Lasers are cool. Things that hover are cool. This is both. Developed by researchers at Aoyama Gakuin University, this little magnetic hover-disc is powered by magnets and driven with lasers. The ...

So keep that in mind as you’re debating the globe’s $145 price tag. It won’t take up a USB port, there’s no cables to hide, no batteries to replace, and it’s more fascinating to watch ...

Brendan Ravenhill reimagines the Dymaxion Map as a magnetic globe.Like Fuller’s original map, Ravenhill’s globe can exist in two or three dimensions. Laid flat, it’s a series of 20 triangles ...

Meanwhile, another goal is to scale up their magnetic robot prototypes. Schaler’s group created 10-square-cm robots during Phase I that were reportedly “10x over state-of-the-art at that time.” ...