Word: audare
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...Yachting Audar. A compact communications and navigation aid for small ships has been developed by Manhattan's Radio Industries Corp. Working on the same principles as echo-ranging radar, but sending out high-pitched "beeps" of sound instead of pulses of electrical energy...
...Audar" can sound off in dark or fog and measure the distance to nearby objects. Its noise generator can be used as a foghorn; its amplifier and speaker can be used as a powerful bullhorn for talking with neighboring craft; its speaker can also serve as a sensitive microphone, picking up the sound of surf or bell buoys for the helmsman. Price: about...
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