Interference from low energy light bulbs, which now comes under the broad heading of Electromagnetic Compatibility or EMC, has been a problem since the first compact fluorescent bulbs (CFLs) went on ...

There's a handy trick for reading station signs that otherwise fly past in a blur as you travel in a high-speed train. Look at one side of the window and then immediately at the other side of the ...

The numbers you see on the box don't always work out in real life. LED bulbs do last longer, but those claims about five to 10 years are estimates based on internal testing -- and companies are always ...

LED lightbulbs are supposed to last thousands of hours, so how come some of them stop working so fast? The answer might be in where you place those lights.