| Re: Is the Universe Open, Closed, or Flat?
It means this. Imagine:
1) a piece of paper
2) a balloon
If you draw an equilateral triangle on the the piece of paper, each angle will equal 60 degrees (x3 - 180 total). If you draw the same equilateral triangle on the surface of a baloon, the angles will not equal 180 degrees.
However, if you live in the surface of the balloon, the measuring device you use to measure the angle with will also be bent ('cause you live in the surface) and you will measure the angles as 60x3=180. Weird, huh?
The next question is, does it matter whether you draw the triangle on the balloon before or after you blow it up??? |