NOVA Online
NOVA menu (see bottom of page for text links)

Faster Than Sound menu (see bottom of page for text links)


Hear

How do you hear the sound of a sonic boom? Your outer ear collects sound waves that are moving through a medium—in this case, through air. Sound waves enter the ear and strike the ear drum, making it vibrate. These vibrations cause microscopic hairs to move, creating electrical signals that are sent to the brain. Your brain interprets these signals as sounds.

(back)

Men of the X-1 | Secret History | Sonic Boom | Speed Machines
Resources | Teacher's Guide | Transcript | Faster Home

Editor's Picks | Previous Sites | Join Us/E-mail | TV/Web Schedule
About NOVA | Teachers | Site Map | Shop | Jobs | Search | To print
PBS Online | NOVA Online | WGBH

© | Updated October 2000

Support provided by

For new content
visit the redesigned
NOVA site