Sort by:
- Most Watched |
- Most Recent |
- Title |
- Company
MythBusters: Rubens' Tube Uncut (1:57)
The MythBusters recreate Rubens' Tube, a popular physics experiment where fire represents sound waves.
Exploring Sound: Sound Waves (2:03)
The vibrations of an object compacts air molecules in some places (compression) and causes expansion of air in other places (rarefaction).
Exploring Sound: Frequency (1:28)
Frequency is the rate of vibration of sound and is measured in hertz. One vibration per second is one hertz.
Exploring Sound: Echo Location (2:21)
Bats hunt by echolocation. The best condition for an echo is a hard surface. Some materials absorb sound. Curved surfaces are used to reflect sound over a large area.
Exploring Sound: Loudness (0:28)
Loudness is measured in decibels (as shown in a table). Loud sound can cause hearing loss. People working around loud sounds usually wear protective ear gear.
