Standing wave patterns

[midwayfair]

My dad forwarded me this.

Curious what a standing wave is? Didn't pay attention in physics class? Want to make an LED levitate?

[m-Kresol]

invalid you tube link...

[selfdestroyer]

My dad forwarded me this.

Curious what a standing wave is? Didn't pay attention in physics class? Want to make an LED levitate?

Fixed

[matmosphere]

sweet, thanks Jon. I think I'll show that to my students one day during some down time.

[madbean]

Yeah killer video. Much salt. So standing.

[pandadandan]

Standing waves are excellent.

If you find it interesting, you should read more about standing waves in conjunction with infrasound and their effect on the human body.  My memory is a bit hazy, but a certain frequency around 18hz (give or take 2hz) is the resonant frequency of the human eyeball.  In conjunction with standing waves, this can lead to distorted vision which manifests in different ways, which is one explanation for ghost sightings; people are passing through standing waves and "seeing" things that aren't there.

Fun fun fun!