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Blue LED lights at Japanese train stations linked to 84% suicide drop

A simple, low-cost change to station lighting in Japan produced one of the most striking suicide prevention statistics in recent memory: an 84% drop in deaths at platforms fitted with blue LED lights.
EDN

Powerful blue LED lights emergency vehicles

The Oslon Signal LED emits a powerful bright blue light that enhances emergency vehicle visibility. The LED produces a blue color with a luminous flux of 52 lumens at 350 mA. Its wavelength of 472 nm ...
Wicked Local

Free blue lights offered to honor fallen Weymouth officer

Residents can honor fallen Police Sgt. Michael C. Chesna, 42, by obtaining a free blue LED lightbulb to shine outside their homes. Mayor Robert Hedlund stated Weymouth received “a generous donation of ...
NOLA.com

Algiers assessor Tom Arnold used blue emergency lights to speed on Causeway

Algiers Assessor Tom Arnold equipped his black SUV with blue emergency lights, which he turned on as he allegedly wove in and out of traffic while driving on the Causeway bridge in late January, ...
WHYY

Philadelphia Zoo lights up blue to thank health care workers, first responders

The Philadelphia Zoo put on the ultimate holiday light show LumiNature last season, featuring lit-up sculptures and a laser show among many other dazzling items. Although LumiNature is a no-go this ...
Physics World

My favourite Nobel prize: the blue LED that lights up the modern world

With the 2019 Nobel Prize for Physics due to be announced on Tuesday 8 October, Physics World journalists pick their favourite Nobel awards from the past. Here Margaret Harris argues the case for the ...