Learn about the types of sound waves, how they travel and more. ... (Hz), which represents cycles-per-second, with faster frequencies creating higher-pitched sounds.

Using a fairly beefy speaker to blast a 70 Hz tone at a big alcohol flame was not enough to extinguish it, but using the bass reflex port on the back was more effective, yet still not nearly enough.

They sent a sound wave with a frequency of around 800 Hertz (roughly the high g of a soprano) through the first waveguide and ...

Using sound waves to create a smart T-shirt. ... which is between 20 hertz and 20 kilohertz," Wang emphasizes. Highly versatile. The researchers have shown that their concept works in the lab.

These Sound Waves Could Make You Feel High, Scientists Say. ... Binaural beats are usually below 1,000 Hertz, which is in the low range of average human hearing. For reference, ...

Audible sound can affect gene activity in mouse cells, boosting the attachment of muscle precursors to surrounding tissue and ...

Ultrasound waves have a frequency above 20 000 Hz, other than that they are like sound waves in every other way. Figure caption, The normal range of human hearing (20 Hz ...

What do a wind turbine, an ocean swell, and a volcanic eruption have in common? All three emit infrasound, or sound whose frequency is below 20 hertz. These sound waves, which are wrongly considered ...

In a new study, Japanese researchers found that acoustic sound waves can influence how our cells behave — including halting fat development. ... a 440 Hz tone (the “A” note on a piano) ...