sound intensity

These waves can also travel through solids and liquids, meaning they can also move through the body.

The creative and youthful experiment of the physics teacher at high school specialized in Nguyen Binh Khiem (Quang Nam) makes the generations of students over and intoxicated.

A crowd in the street produced a sound of up to 90dB and even a falling leaf could produce noises of up to 10dB! As we get older, our ability to receive sound decreases.