The Russian Navy is abolishing an old tradition, known as semaphore, of waving flags as a means of communication.
Flag-waving has been used for passing coded messages for more than 115 years, but requires a high level of human expertise.
So now instead of waving flags, sailors will use special blinking searchlights.
Still, naval experts predict the old-fashioned method will make a return in several years, when the fleet will be fully manned by professionals, instead of the conscripts who currently serve.