Earlier this month, Gizmodo reported on a new high-tech drive-thru Taco Bell that the Tex-Mex chain opened in Minnesota; at “Taco Bell Defy,” you order via a mobile app, scan a QR code when you drive up, and have your food delivered via a series of tubes, never interacting with another human...

Burritos seem like the perfect self-contained meal, but they’re actually ticking time bombs, as even a masterfully wrapped one can come apart at the seams, leaving your hands and clothes dripping with salsa and sauces. But there’s a potential solution enroute, as engineering students have...