Resonance on small uniform objects

[DaShen]

Turn down your sound.

 

[dullard]

That was fascinating. :thumbsup:

 

[PowerMacG5]

That's awesome. What causes the rice to form those patterns at the given frequency?

 

[dullard]

Originally posted by: PowerMacG5
That's awesome. What causes the rice to form those patterns at the given frequency?

I'd imagine it isn't the rice, but the base plate that is causing the patterns.

 

[mrSHEiK124]

Wow that was cool, but the sounds got really irritating

 

[DaShen]

Originally posted by: dullard

Originally posted by: PowerMacG5
That's awesome. What causes the rice to form those patterns at the given frequency?

I'd imagine it isn't the rice, but the base plate that is causing the patterns.

No it is the resonance that comes out of the base plate in waves. The waves seem to come out of different areas of the base plate and interference patterns evolved based on the wavelength and frequency of the sound. Not that fascinating, but cool to actually see with uniform objects.

On a grand scale, the Sahara Desert is known for "moaning" resonance sounds due to wet underground sand and structural movement of sand going down dunes. It is a fascinating pattern that evolves.

 

[dullard]

Originally posted by: DaShen
No it is the resonance that comes out of the base plate in waves. The waves seem to come out of different areas of the base plate.

Exactly what I was saying (but didn't take the time to type out). So why the "no"?

 

[DaShen]

Originally posted by: dullard

Originally posted by: DaShen
No it is the resonance that comes out of the base plate in waves. The waves seem to come out of different areas of the base plate.

Exactly what I was saying (but didn't take the time to type out). So why the "no"?

I see. I thought you meant it was the direct movement from the base plate rather than the resonance formed from the base plate. I guess you can see them as one and the same though. So I guess, yes? Happy now?

 

[dullard]

Originally posted by: DaShen
Happy now?

Yep. The fascinating part for me was thinking about the mathematics describing the patterns. The theory behind it is simple, but the possible variations intrigue me. But I guess I'm just odd that way.

 

[DaShen]

Originally posted by: dullard

Originally posted by: DaShen
Happy now?

Yep. The fascinating part for me was thinking about the mathematics describing the patterns. The theory behind it is simple, but the possible variations intrigue me. But I guess I'm just odd that way.

Interference patterns are described in very easy mathematical equations, but I guess it gets a little more complicated depending on the axis.

 

[dullard]

Originally posted by: DaShen

Originally posted by: Dullard
The theory behind it is simple.

Interference patterns are described in very easy mathematical equations.

You just like to parrot me today don't you?

 

[Kev]

marked