[TheForge] boing boing pond.

[Peter Fels & Phoebe Palmer]

I was thinking of the  wide cast iron puddle in then furnace being the equivalent of the 1/2 frozen pond,
with the pure iron and silicon slag being the equivalent of the of the scattered frozen berglettes for the graphite stones to skip across.

On Oct 22, 2014, at 2:41 PM, jerry Frost wrote:

That might be something to see/hear Pete, there isn't enough cool stuff in a
person's life. There is a gravel pit lake just down the hill from us and I
think Jake wouldn't mind me giving it a try if I invited him to watch. I
have an old graphite crucible or I could talk to a caster friend about one
and getting coal or charcoal to iron melting temp isn't a problem for a boy
with a forge and blower.

How's this sound. One disposable crucible, one flame resistant trebuchet a
hot coal fire and a frozen pond. Lift crucible onto the treb sling, step
back, WAY BACK and pull the release on a dark night of course. Hmmmm? Then
again a ballista would be good to give it a nice linear horizontal
trajectory and be a whole LOT safer. If catapulting molten iron can be
considered "safer" than just about anything of course.

Jer
-----Original Message-----
From: TheForge [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Peter
Fels & Phoebe Palmer
Sent: Tuesday, October 21, 2014 9:53 AM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] boing boing pond.

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/2915
> 8406
> 

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