Sound waves and hair

[Sunsailing]

Being a Science teacher, I found this video interesting.
Never thought about sound waves being able to do this to hair :cool:

http://www.youtube.com/watch?v=NZ8sCvMRbPw&feature=related

[Helix]

Hee hee...that was kewl :-p

[supbanana]

That looks like a lot of fun! I'd love to experience something like that.

[julliams]

Do you think it's real?

[Amber_Maiden]

Imagine what that's doing to your ear drums.... If it can do that to your hair...

[ktani]

Yeah, lol the decibels at that level can cause deafness. Do not try that at home in a closed vehicle.

http://www.hearnet.com/at_risk/risk_advice_archive.shtml

ETA: http://www.nidcd.nih.gov/health/hearing/pages/noise.aspx
"Know which noises can cause damage (those at or above 85 decibels)."

ETA: 2 I do not really think it is funny to have done that, and I hope the little girl is ok. It may have been done in ignorance but it was still negligent. ETA: 3 in my opinion.

[Sunsailing]

I didn't think it was funny either, although I did find it interesting.

I agree about hearing loss. I warn students all the time about decibels (I have a decibel meter.) I also warn them against other forms of energy they have access too (ie: high intensity light from a laser).

The video is real. You can find many other videos showing the same thing.

We're going to have many more old people some day with great hearing loss :(