It may seem like a holdout against the solid-state world, but the vacuum-tube magnetron is still at the heart of every consumer microwave oven and many commercial ones used for cooking or drying.

You know how it is, you get in late from work, you’ve been stuck in traffic for what seems like an eternity, and you’re hungry. You reach for the microwave meal, and think, if only I didn’t have to ...

Researchers at the University of Michigan College of Engineering have developed an elegantly simple technique that dramatically reduces the interference microwave ovens create in telephones and ...