Fluorescent lamps are a type of gas discharge lamp that operate on the principle of mercury vapor and a fluorescent coating. These lamps are among the most energy-efficient light sources and are still ...

34,796 people played the daily Crossword recently. Can you solve it faster than others?34,796 people played the daily Crossword recently. Can you solve it faster than others?

London's gas lamps, which have cast their glow on the city for more than 200 years, have been nearly extinguished by the prevalence of cleaner, more efficient and brighter light sources ...

Meet London's last lamplighters, five men whose job it is to maintain London's last remaining Victorian gas lamps, a tradition which dates back to 1812 and one steeped in history. Their unique ...

It seems that a significant percentage of the world’s neon gas is produced in Ukrainian factories, and there is concern among pundits and electronics manufacturers that a disruption of this ...