Salt on a Flat Aluminum Plate - Modes of Vibration

SFA Professors Dr. Downing and Dr. Trikosko rosin up their bows for this impressive display of vibration modes.
That is a thin aluminum plate painted black. There is an aluminum rod bolted at the middle that is used as a handle.

Category:

Science & Technology

Tags:

• Salt
• on
• Flat
• Tin
• Plate

[phil10300]

I got a violin bow off of E-Bay but I can't find a good surface. Do you know what kind of board they use in the video?

[sfaelectronics]

Sorry, that is a thin aluminum plate painted black rather than a board.

[sfaelectronics]

There is an aluminum rod bolted at the middle that is used as a handle.

[ledzep126]

To me that explains the crop circles.

[NilzeN1]

this is a look into the future 2000 years ago:D

[psybera1987]

@phil10300 looks like a metal plate :p but the voice is squeeky!!!

[101101101777]

Well holy shit. 

[AngusT07171]

@phil10300 violin strings

[maztapez23]

do you Know some pc software to demonstrate the same Phenomenon of Computer monitor?

Thanks in advance!

[metiormami]

@ledzep126 i agree

[VooDooEf]

that last 1 looks like klovrat

[1nm1]

description says thin aluminum plate

[JerryGiesler09]

At the last one, LOL! It looked either like a steel drum or a grapefruit!