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Alligators,Rulers Of The Swamps,Link Marine And Freshwater Ecosystems（图）
Alligators Rulers Of The Swamps Link Marine Freshwater Ecosystems
2017/11/23
The sophistication of radio transmitters has moved well beyond the days of walkie-talkies. Now transmitters similar to those that track space mission orbiters are being used here on Earth to follow al...
JILA’s Superradiant Laser May One Day Boost Atomic Clocks and ‘Rulers’ for Space
JILA Superradiant Laser Atomic Clocks Rulers Space
2016/11/4
JILA physicists have demonstrated a novel laser design based on synchronized emissions of light from the same type of atoms used in advanced atomic clocks. The laser could be stable enough to improve ...