To the extent that you’re familiar with magnetostriction, you probably know that it’s what makes big transformers hum, or that it’s what tips you off if you happen to walk out of a store without ...

Now that’s uncanny. Two days before [Ben Krasnow] of the Applied Science YouTube blog posted this video on anti-theft tags that use magnetostriction, we wrote a blog post about a firm that’s using ...

A cross-sectional diagram of a typical Terfenol-D actuator reveals the Terfenol-D rod, permanent magnets, and coil driver. Magnets bias the Terfenol-D magnetic domains for ac use. Versions biased for ...