Recent content by rjohnson103

  1. R

    What is the Speed of Universe Expansion and How Does it Affect Space Travel?

    The Lineweaver article was very enlightening, thank you. I was trying to use the caterpillar on the expanding rubber band analogy. If you placed the caterpillar 1/3 of the way across a rubber band it would not matter how fast the rubber band expanded, the caterpillar would always be 1/3 of the...
  2. R

    What is the Speed of Universe Expansion and How Does it Affect Space Travel?

    Here is a old "Scientific American" question retooled. If two galaxies are moving apart faster then the speed of light because of the expanding universe and you were in a spaceship traveling the speed of light from one galaxy, traveling to the other, would you ever make it to the other galaxy?
  3. R

    Do particles have spatial extent or are they point-like?

    So I could say EVERY particle has a spherical probability wave that permeates the whole universe, and EVERY particle has an above zero chance to become physical anywhere in the universe. To say we are all made up of the stuff of stars is quite an understatement.
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