4 ms·

ELI5 time - where would a truly uniform gravitational field exist?

• saagarjha 6y ago
  Nowhere. Gravity is just inherently radial. (But if you have a very large spread it can look fairly uniform, of course. Especially if your measure of “flat” is actually curved to the same radius.)
• aardvark179 6y ago
  Nowhere in the real world, but that’s okay since we are dealing with thought experiments. An infinite plane of mass is roughly what you’d need so that the contributions of each element add up to a uniform field.
• mhh__ 6y ago
  Nowhere, i.e. if you are in the falling elevator the tennis balls will fall downwards if it's uniform but any real gravitational field (apart from something of infinite radius) will make them converge gradually towards eachother as they fall towards the CoG
• User23 6y ago
  In the pasture where I keep my spherical cows.