Newsflash: Time May Not Exist | Physics & Math | DISCOVER Magazine - [Stumbles via StumbleUpon]

Mind-blowing quote from the article:

We see only clocks. If you say this object moves, what you really mean is that this object is here when the hand of your clock is here, and so on. We say we measure time with clocks, but we see only the hands of the clocks, not time itself. And the hands of a clock are a physical variable like any other. So in a sense we cheat because what we really observe are physical variables as a function of other physical variables, but we represent that as if everything is evolving in time.

It's hard to imagine a world without time. It's something that we take for granted everyday, but one of physics biggest problem is the the problem of time.

How Much is a Million? Billion? - [Stumbles via StumbleUpon]

"One trillion seconds ago – 31,688 years – Neanderthals stalked the plains of Europe."

Wow.