5 Mind-Blowing Facts About Sound

5 Mind-Blowing Facts About Sound 5. Sound can affect the human body!

A frequency around 19 hertz matches the resonance of the human eye, which can cause

visual disturbances, nausea, and even breathing problems. 4.

There are sound weapons that don’t kill! Long-range acoustic devices can reach

160 decibels, causing intense pain — like standing next to a rocket launch,

but without killing you. 3. Sound can make objects float!

Using powerful sound waves, scientists can levitate small objects and liquids in mid-air

— with no physical contact. 2. Humans hear only a tiny part of sound!