Homopolar motors tend to be typecast as simplistic in nature, and that's true for probably the most part. The bare minimum requirements are a battery, conductor and magnetic field. But when it comes to Valentine's Day, they're nothing short of complex.

At least... relating to the heart you place into it.

So, for all of you science and tech nerds out there with significant others, you need to do that for Valentine's Day, which is coming up on February 14th. With all the thought and effort discharged from that deep down place you normally preserve hidden, that emotional facet that solely gets in the way in which of your subsequent nice scientific feat, how may your beloved not enjoy this heart-formed reward of homopolar rotation?

The flat heart-shaped wire is probably the most basic conductor for homopolar motors. The center-shaped wire with legs is barely more complex. But put them together into one spinning physique and you've got the right Valentine's gift.

What's that outdated saying? Two hearts are higher than one?

Only on Valentines Day.