Question: I feel like I’m going to have a seizure. I’ve tried three different LED bulbs in my home, and all of them flicker. I’m convinced I’m getting bad bulbs, and the people at the store are being ...

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 ...

File photo of non-LED type streetlights. Harrisburg could see the entire city converted to more efficient, longer-lasting, lower-cost LED streetlights - without having to spend an extra penny.

LED bulbs have become quite common these days (here's what LED stands for), and you'll find them in street lights, factories, offices, and even in your home. One peculiar thing you may have noticed ...