A cigarette is standing vertically on its butt. You cannot touch it with any object(solids, liquids or gases). That goes for the foundation also. How can you make it drop? Asking another person to do it does not count.
(In reply to might it be?
by scott olson)
I'm not so sure that this solution is valid. The sonic energy is just a wave causing the air to knock it over. The air counts as a gas and an object.
Posted by Tristan
on 2003-10-16 18:22:05