[TheForge] boing boing pond.

[Peter Fels & Phoebe Palmer]

If someone was still puddling iron on a large scale, it'd be fun to try it on that pond!

On Oct 21, 2014, at 5:40 AM, Bruce . wrote:

I saw that.  The sound is indeed cool.  To my ear, it sounds like a
"chirp", which is a scientific term, believe it or not, for a waveform that
(you guessed it!) sounds like a chirp!
http://en.wikipedia.org/wiki/Chirp
I learned about this waveform from a discussion (?) of Fourier-transform
NMR, in which the radio signal exciting the nuclei may be delivered as a
chirp in order to scan the wavelength spectrum.
Now, this makes me wonder WHY a chirp is produced by skipping rocks, and
whether anything can be learned from it.  I( get on these rants every now
and then since somebody discovered you could produce X-rays using scotch
tape!  http://en.wikipedia.org/wiki/Scotch_Tape#X-rays)

Bruce
NJ

On Tue, Oct 21, 2014 at 2:15 AM, jerry Frost <akfrosty at mtaonline.net> wrote:

> What to do with your fish pond when it freezes over.
> 
> Jer
> 
> http://www.ktuu.com/news/news/rock-skipper-discovers-unique-noise/29158406
> 
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