image TOYS, TRICKS, & TEASERS

By Donald Simanek

The Penetrating Magnets Illusion

“Magnets are fascinating things, and they behave in unexpected ways. I will show you a little-known property of magnets, which actually allows them to pass through one another.”

image Back in 2004, I invented a physics toy using magnets, one I hadn’t seen described elsewhere. So I called it Simanek’s Penetrating Magnet Illusion. It obeys Newton’s laws, like the others, but why should Newton get all the credit?

This toy is inexpensive and absurdly easy to build. Find a dozen small, ...

Get Make: Technology on Your Time Volume 15 now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.