Suction Mount SP Connect Poco Vibrating Device High speed aerial grasping using a soft drone with onboard perception npj Robotics When you snap your fingers, the snap sound isn't from your fingers rubbing togetherit's actually the sound of your middle finger hitting your palm at high speed! Scientists found that a snap Your voice is like a ballon , 1. Vibration: When you let air out of a balloons neck, it vibrates and makes a squeaky sound. Similarly, your vocal folds vibrate as air passes through, producing MAKE YOUR FINGER VIBRATE REALLY FAST