Vibrations

[Normal Dude]

This is also what causes a glass to shatter when an opera singer hits a certain note (or so goes the myth). The myth was that it was the high "C" but in fact you have to hit the same tone as the glass itself will emit. Moisten your fingers and run them around the top and you will hear a tone. Sing that tone, with lot of power, close to the glass and the glass will shatter. The Mythbusters demonstrated it with the help of a Rock singer. It nearly cost him his voice though.


PS sorry for one more side-rack

I remember Antonio Banderas managed to do it on Mythbusters, he had one heck of an opera voice.

 

[Ysidro]

You can glue your head together Ysidro,

Negative * Negative = Positive
Negative + Negative = Negative

So, unless they have trained the homoeoeoepathic remedials to go forth and multiply (aka have frulations) with the aromatheraputic quantums or whatever they are, you're probably safe

I never claimed to be good at Math!