What Those Chimes You Hear on Airplanes Really Mean
If you do n’t pop in your disturbance - canceling headphones the moment you take your rump on a flight of stairs , you ’ll finally hear a conversant sound : a “ ping , ” used by the crew to communicate with passengers . That non - sullen sound signals when you should remain seated and when you ’re devoid to get up , for example . But sometimes those sounds are n’t meant for the customer ....