Physicists Create "Air Laser" In Laboratory

Originally published: Jan 6 2015 - 8:45am, Inside Science News ServiceBy: Charles Q. Choi, Contributor(Inside Science) -- A laser could be created with air in a practical way, a new advance that could one day be used to help spot explosives or pollutants from afar, researchers say.Laser light is generated by pumping energy into atoms or other objects. A chain reaction can occur in which energized atoms all stimulate each other to give off laser light. Image credit: FastLizard4 via flickr | ://bi...