[TheForge] boing boing pond.

[Bruce .]

Frosty,
You're dangerous even to listen to (or read).
Level-headedly.  You launch a hot crucible full of white-hot iron.  What
happens.  Well, air-resistance aside, the whole thing travels as a lump and
hits the ice.  But add air resistance and suddenly the molten steel flows
out of the crucible, becoming molten steel bullets!
Now add  to this the aiming uncertainty of your homemade trebuchet and you
might suddenly find yourself in the bulls eye of a hazard greater than a
tree.  I can visualize Wylie Coyote in this situation ...

Bruce
NJ

On Wed, Oct 22, 2014 at 5:41 PM, jerry Frost <akfrosty at mtaonline.net> 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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