I recently watched "The Elegant Universe" - a NOVA production - which is a show about String Theory. The supposition is that Atoms are made up of strings. REALLY REALLY tiny strings of energy. These things are so small that if you enlarge an Atom to the size of our Solar System, a string would be the size of a Tree. Holly CRAP!!!

NOVA | The Elegant Universe | PBS
Starting at an everyday scale, travel by powers of 100 down into the infinitesimally itsy-bitsy world of strings.

I love stuff like this... Did you know... If you scale the sun to the size of a Basketball, the earth would be the size of a Peppercorn. W-W-W-WOW!!

Light travels at 299 Million Meters per second yet it takes light 8 minutes to get here from the Sun.

It's just so mind numbingly large out there...

UPDATE:

Thank you Gluemanchu, I was off by a few hundred Million Meters per Second... I have corrected the numbers.