ATM Cooking a paraboloid

["Arjan te Marvelde (ELN)" <Arjan.te.Marvelde@eln.ericsson.se>]

Hi,

Some time ago i saw a documentary about an artist making vases out of glass. The way he 
did this was by heating a piece of thick glass, supported by a circular aperture, in a 
kiln. At some point the glass starts sagging down through the aperture, eventually 
forming a vase shape.

So i wondered: what happens if you stop the sagging when the glass reaches the right 
sagitta. Would the shape be close enough to a paraboloid to require only some additional 
figuring?
Maybe this is an alternative to slumping?


/Arjan te Marvelde