D'you know of any gadget/method/technique of breaking an inverted wine glass without touching or dropping it?

Question

Should not touch or drop or hit the wine glass.
Should not jerk the glass.
There must be no noisy gadget to use.
Glass will rest on a plate, or book, or any holder.

Answer 1

1) place the plate with the wine glass in a freezer. when it's good and cold heat one side with a blow torch

2) learn to sing like ella fitzgerald

Answer 2

Sounds like you're trying to replicate a magic trick.

The only thing I can think of is applying vacuum to the inverted glass. You would have to have a seal around the lip so that air wouldn't leak past it. There would be a hole in the surface so you could suck the air out. If the glass can't stand the atmospheric pressure on the outside, it will implode.

But you may have to try a bunch of different kinds of glasses before you find one that will break under atmospheric pressure.

Answer 3

a sound wave that matches the harmonic resonance of the object will cause it to shatter . u s army experimented with compressed air and a giant tube (like blowing across a soda bottle ) to produce a 2-5 htz note that started cracking the concrete walls of the lab .it worked up to 2 miles away .

Answer 4

shoot it with a gun.... no but seriously extreme low to high tempetures will break the glass for sure... if the glass is cold heat it up with boiling water or a torch if possible... unless you are telekenic this is the best I have sorry

Answer 5

It is called a piece of cardboard.

Answer 6

other than sonic devices, theres always explosives. maybe getting it to vibrate somehow...

Answer 7

use laser