A long time ago, in a galaxy far far away… we wondered, could you ever build a real lightsaber like the ones in Star Wars? A lightsaber is a glowing sword that can cut through metal – and pretty much anything else you can think of. It’s the favorite tool of heroes like Luke Skywalker and Ahsoka Tano, as well as villains like Darth Vader. That’s just in the movies, but could we make them real? We asked mechanical engineering professor Sayan Biswas to help us find the answer.

Got more questions than Luke when he was training with Yoda? Send them to us at BrainsOn.org/contact, and we’ll help use the force to find an answer!

People have all different kinds of animals as pets: dogs, cats, hamsters, gerbils, pigs, you name it. The famous artist Salvador Dalí even had a pet lobster that he took for walks on a leash! But when did humans first start craving animal companionship? We asked anthropologist David Ian Howe to help us find the answer.

Got a question that you want to ask right meow? Send it to us at BrainsOn.org/contact, and we’ll unleash the answer.

Drums are the backbone of rock’n’roll…and most other kinds of music, too! Where would we be without a big bass drum leading a parade, or a jazzy ba-dum-CH after a well-told joke? But how do drums actually make their sounds? We asked drum maker Liz Aponte to help us find the answer.

Are you ensnared by a question? Send it to us at BrainsOn.org/contact, and we won’t miss a beat in finding the answer!