Leftover pizza is a unique food group. Second-day cold slices for breakfast or lunch can be a treat, but they’re just not the same as hot, crispy pizza fresh from the oven. In most cases, reheating ...

Microwaves are truly an incredible invention. With just the press of a button, anyone can whip up a delicious hot meal or breathe new life into their leftovers. As versatile as microwave ovens are, ...

Like so many of the most banal tools of modern life—duct tape, tampons, canned soup, the Internet—the microwave oven was born from the industry of war. Its key element: magnetron tubes, tiny, ...