This is a great chart showing the different energy transfers that occur in the universe.  From the smallest wiggle of a photon to all the energy expended since ever in the whole Universe...

http://www.circlon-theory.com/HTML/joules.html

Some notable items on the chart:

• 2.6845 * 10⁶ - One horsepower per hour
• 10¹³ - Titanic fall to the bottom
• 10⁴⁸ - yearly output of the Milky Way

Comparison of the very small and the very large.  Let's take a look at the empty space inside a hydrogen atom.

Do NOT grab the horizontal scroll tab, but click to the right in the scroll bar and see how far to the right the hypothetical electron resides in comparison to the proton...11 real world miles of scrolling supposedly, good luck.

...ok, once you get the idea grab the horizontal scroll tab.

...or go to the web page if you prefer: http://www.phrenopolis.com/perspective/atom/index.html

Now compare that to the cool planet and stars scale video...

I don't have anything else...I just thought it was cool

Look! Kittens!