Tuesday, May 01, 2007

What We Don't Know

How did life begin? What's the universe made of? Why do we sleep? What causes gravity? Is time travel possible?

some of the Biggest Questions in science

. via Plep


Livia Salome Gnos said...

My daughter always asks me in the evening when she doesn't want to go to bed: "Why do we have to go to sleep? When don't we have to go to sleep anymore?"

Princess Haiku said...

It's amazing how children can ask questions that google can't answer.