LAS VEGAS — You're tempted to tell a joke: "How many astronauts does it take to screw in a lightbulb?" But retired NASA astronaut Michael Lopez-Alegria is quite serious about the "biologically ...

We live in a world where smartphones last for about 2.5 years, and even the best light bulbs fizzle out unexpectedly when you need them the most. That said, here is one bulb defying the odds, a ...

Light bulb burn out? No need to worry, here’s how to turn a toilet paper tube and a few other ingredients, from around the house, into a light bulb. PLEASE follow these safety precautions when doing ...

It’s a cruel daily cycle. We get drowsy when it’s time for that big meeting, but are suddenly wide awake when it’s time to hit the hay. But did you ever think that swapping your light bulbs might be ...

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If you thought mousetraps were tough, try building a better lightbulb. Just in time for Earth Day, a team of American inventors have created a bizarre-looking new bulb that turns illumination on its ...

A light bulb is a device that produces light when powered by electricity. It's one of the most important inventions in history. Light bulbs help us see in the dark, work at night, and live more ...

Fluorescent lighting uses less energy than comparably bright incandescent bulbs do. So switching to fluorescents will shave your energy bill. The big surprise: Relying on fluorescent lights may also ...

Once, there was the ordinary incandescent light bulb. It shone brightly, but wasted much of the energy put into it as heat. Then came the compact fluorescent. And as costs have dropped, consumers have ...