Answer

Kjetil has had a discussion going about physics, and I've participated.

This is my answer.

If the file doesn't open, it means my computer is turned off. Try again later.

This is an EXTREMELY simplified answer to a very complex question, but it shows that there is a size limit to the pick-up-water-with-a-straw-trick. The broad lines of it has the backing of some physics students and a chap with a PhD i fluid mechanics.

Please correct me if I'm mistaken.