The principle of making sound when clapping is the vibration of air between palms.

When the two palms touch, the air between the hands is compressed. When the strength increases, the air pressure enclosed by the two hands will increase. When it reaches a certain level, it will break through the resistance between the skin and spray out. When the high-pressure air pressure is released instantly, it will cause the surrounding. This vibration spreads in the air in the form of sound waves. Sound waves are longitudinal waves, and its propagation depends on the medium, that is, air.

the speed of sound waves in the air is about 34m/s, which is why you can hear clapping immediately. When the ear receives these sound waves, they will pass through the eardrum, auditory bones and other organs, and finally reach the auditory nerve. After the brain processes these signals, it hears the sound.

Applause in life:

1. Music performance: Applause is a common way to express appreciation and encouragement to performers in concerts, concerts and other occasions. The sound made by clapping can convey the enthusiasm and joy of the audience and enhance the atmosphere of the scene.

2. Sports events: In sports events, the audience cheers for the athletes by applauding to stimulate their fighting spirit and confidence. At the same time, applause is also the affirmation and support for referee matter of justice.

3. Speech at the conference: In academic reports, symposiums and other occasions, participants applauded to show their respect and recognition for the speakers, as well as their support and approval for the contents of the speeches.

4. Classroom teaching: In class, students express their gratitude and respect to the teacher by applauding, as well as their recognition and understanding of the teacher's questions or explanations.

above content reference: Baidu Encyclopedia-Sound