Robert J. Bradbury wrote: > ...The stomach is also very acidic. It may bevel the edges > of the glass sufficiently that they are not sharp... Ja, though stomach acid would not actually touch glass, there could be some standard magic involved, such as having some premade pieces of glass whose edges have been dulled with a torch, replacing the real glass shards thru prestidigitation. Or some "glass" made of salt or other soluble crystal, again switcherooed when the audience is distracted. Arthur Clarke has aptly stated, any sufficiently advanced technology is indistinguishable from magic. {8-] spike
> ...The stomach is also very acidic. It may bevel the edges > of the glass sufficiently that they are not sharp...
Ja, though stomach acid would not actually touch glass,