What is that sound?!

[Feuergeist]

That ringing happens when you regularly expose yourself to loud noise.

[Moogy]

Tinnitus.

[Jello]

cenright , what do you think sound is? "vibrations" in the air.. but really they are pressure changes because sound waves are not longitudinal waves.. they are transverse waves... which means that high pressure is the crest and low pressure is the trauph... when they hit your ear drum its vibrates.. like a high pressure will push it inward , and a low pressure makes it push out... due to pressure behind the eardrum which is at normal air pressure.. (which is why your ear pops. if you are only getting high pressure fronts then your ear will change air pressure to match.) anyways the reason why we hear a ringing noise is because of the sound of your blood going through your vessels, bouncing off your skull and making a reverbed echo. just at a very high frequency.

[Jello]

i know im double posting but just as a cool fact , sound travels at mach 9 through aluminum (sounds longitudinal)

[alainbryden]

yaya. I only took physics for one year.