Here for enjoying from the comfort of your chair is a classic science demonstration: CrazyRussianHacker host Taras Kulakov, dipping two pounds of dry ice into a sink full of water to demonstrate the dynamics of warm and cold air.

Do not try this from your home or office — large volumes of carbon dioxide in an unventilated space is a decidedly awful idea.

Cool, right? Chase this with a little brain teaser: If heat rises, why does temperature drop at higher elevations?