[TheForge] Re:Mass vs. acceleration vs. soil (A Novel)

Sun Oct 19 21:32:59 2003

That was supposed to be 8 (4x4) plates.  sorry for the x-ed fingers.

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Kevin Donahoe
Sent: Sunday, 19 October, 2003 9:16 PM
To: [email protected]
Subject: RE: [TheForge] Re:Mass vs. acceleration vs. soil (A Novel)

Tom Trozack wrote:

-If you set a row of billiard balls about 1/4 inch apart (or even touching)
-and shoot the first ball... craaaack and the last ball shoots away nearly
as
-fast as the first was shot. Same goes for those little hanging ball
-bearings, or a row of dominoes, empty freight cars in a train or whatever.
skip....
-Ok, enough of analogies. Firmly bolt your power hammer to a single thick
-plate of steel, say a minimum of 20 times the mass of the ram.   If you
have
-a 100 lb hammer, then use a 2000 lb. plate minimum.  More is definitely
-better, up to about  35/1 ratio. The hill (as well as the wine glasses on
-your pantry shelves) will not even know your hammer is there. Save all that
-digging.

Sooooooooo, Tom, I was planning on sticking my 100# hammer on a stack of
1/2" plate.  Would a weld on each corner get it to simulate a solid plate,
or a couple of plug welds under the anvil block?  It's just more feasible to
handle 8 94x4)plates weighing 325#, than one of 2400#.  I hadn't really
considered the old clicking balls analogy, I can see how one might pulverize
their concrete slab in short order.

Thanks, Kevin

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