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Why Do Military Submarines Use Red Lights?
With red light illuminating the submarine's interior rather than a ... Moreover, the military uses red lights on submarines to help the crew's sleep patterns, making them more alert when they ...
Business Insider22d
I toured the Becuna, a WWII warship and the only submarine of its kind left in the world. Take a look inside.
The submarine carried out various peacetime missions ... and saw the Olympia warship docked next door. The Becuna used red lights for night operations and combat because it's easier for one's ...