Portal talk:Physics/Did you know/Suggest
"...that if we even travel at the speed of light it would take us 15 billion years to cross the universe (or longer ← as the universe is expanding)?"
Thats only 50% true but 100% misleading. Because if we were traveling the speed of light it would take us no time at all, according to our watches; people watching us would say it takes us 15 billion years... Because time is relative.
How did you people not catch that?
Next Proposal[edit]
- "...that according to the Big Bang theory the universe has no boundaries, edge, or center?" Proposed by--Novus Orator 05:17, 14 November 2010 (UTC)