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 ...

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 ...

This is an LED bulb that fits into a recessed light fixture. It can become an annoying strobe light in your home. (Tim Carter) Analysis by Tim Carter Q: I feel like I’m going to have a seizure. I’ve ...

Arnold J Wilkins received funding from the Medical Research Council and the Wellcome Trust. There’s a handy trick for reading station signs that otherwise fly past in a blur as you travel in a ...