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Re: [Shop-talk] Mythbusters sucks! [rant]

To: Randall <>
Subject: Re: [Shop-talk] Mythbusters sucks! [rant]
From: "Peter J. Thomas" <>
Date: Wed, 27 Jan 2010 16:31:35 -0500
On 1/27/2010 4:07 PM, Randall wrote:
>> Wonder if that's purposely
>> designed in ?  Might be to direct a potential explosion,
> Makes sense to me.  And why else would the bottom be concave on an electric
> heater?  Normally pressure vessels are convex, to distribute the forces
> better.
> -- Randall

Concaved also distributes forces, outward toward the rim.  If the bottom 
were flat, pressures would deform it to convexed and the bottom would 
pull away from the rim.  With a concaved bottom, pressures would deform 
it towards flat and push the rim outwards into the side walls.  And it 
will stand.

Peter T.
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