A flickering light bulb could be caused by any number of things. So, when you're troubleshooting, start with the easy stuff ...

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 ...

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 ...