Inside the kit: a 50 ml bottle of ferrofluid, a specially made ferrous nut and bolt, and heavy magnets. The result: ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. For scientists and dreamers alike, one of the greatest hopes for a ...

The rules about what makes a good magnet may not be as rigid as scientists thought. Using a mixture containing magnetic nanoparticles, researchers have now created liquid droplets that behave like ...

These new iron-nitride magnets are stronger, cleaner to make, and made from domestic iron-salt waste and nitrogen.