News for hackers. Stuff that matters.

A comment on After rising for 100 years, electricity demand is flat. Parent comment

Re:After rising for 100 years, electricity demand is flat by lozenge on Tuesday February 27, 2018 @10:57AM (#16474543)
Streets, offices and shops are now better lit.
[ Parent | on HN ]
Re:After rising for 100 years, electricity demand is flat by user5994461 on Tuesday February 27, 2018 @05:52PM (#16478819)
Offices and shops used neon lights. It lits as well as LED or better, but consumes a lot of power.
[ Parent | on HN ]
Re:After rising for 100 years, electricity demand is flat by pfdietz on Wednesday February 28, 2018 @08:56AM (#16482961)
Do you mean fluorescent bulbs? They do not use neon, but rather use mercury vapor. The UV light from the mercury excites a fluorescent layer on the inside of the tube, causing broadband emission of visible light.
[ Parent | on HN ]