A team of researchers at University College London has developed a way to keep objects levitated by sound waves airborne when other objects interfere with the levitation path. In their paper published ...

This TV only has an AUX audio output. When i connect TV to Audio system the sound is crystal clear for the most part. However, I get a strange sporadic interference sound (sort of how a speaker sounds ...

We saw earlier that when sound waves come from correlated sources then their pressure and associated velocity components simply add. This meant that the pressure amplitude could vary between zero and ...