You can't buy incandescent light bulbs anymore. With a few exceptions, the bulbs – patented by Thomas Edison in 1880 and a common fixture in American homes for more than a century – have officially ...

Dec. 22 -- In a field full of potatoes, a farmer bends down and holds a black light to the leaf of a marked plant. The leaf takes on a distinctive hue: It glows fluorescent green. The farmer knows a ...

Compact fluorescent light bulbs (CFL) were born during the oil crisis that began in 1973. They became popular by the 2010s, when concerns about energy efficiency as a way to combat climate change rose ...

A simple plastic bottle filled with water and bleach can brighten homes during daylight hours. This ingenious idea sparked far-reaching waves of change when Illac Diaz brought it to life through his ...