"Cyli" wrote in message
...

And I thought my grandmother's glass pastry knife was a tech marvel...

BTW, should you ever try knapping flint, it's awfully sharp. Gently
and carefully picking up a small knapped piece can be right up there
with carelessly putting your hand in the knife drawer. First people to
discover it were probably amazed and at a, temporary I'm sure, loss
for how to use the marvelous stuff.

Should you ever find yourself in the position of needing to cut someone's
heart out, you can still get obsidian scalpels from some surgical supply
houses.

Wolfgang
who assumes they have other legitimate uses as well.