13 ideas about #spacetime have been added on IdeaMill.
If one of the spatial dimensions only went one way (like time does) would it make you go left, right, up north or down south?
More of a question than an idea, but thought-provoking nonetheless. Read more
Stands to reason. First heard about this idea years ago, but this... Read more
Your feet have been slightly closer to a denser region spacetime for... Read more
This is John Wheeler’s succinct summary of general relativity – which was... Read more