LED

Research indicates that exposure to the blue light from your smartphone and other devices, such as computers and tablets, might be keeping you awake at night.

The old joke, "How many (blonds, lawyers, etc.) does it take to screw in a lightbulb?" just got more complicated! The old  flourescent tubes that used to illuminate millions of homes, and still light up many garages, workrooms and office buildings, bid their final adieu on Saturday. If you have one…