4 ms·
Sure. Take any circle made with a piece of string and declare it to be your reference unit circle. Blammo! Its diameter is 1 and its length is now pi ;).
by phillmv 15y ago
Sure. Take any circle made with a piece of string and declare it to be your reference unit circle.
Blammo! Its diameter is 1 and its length is now pi ;).
- granite_scones 15y agoThat just pushes the problem back to whether perfect circles can exist in reality.
- jerf 15y agoIn which case, problem solved: They can't.
- eternalmatt 15y agoAnd neither can perfectly straight lines.
- ars 15y agoExcept that the length of a real objects can never be defined exactly. You can only give probabilities, eg. it has an 80% chance of being X or more units long, a 5% chance of being X or more etc, etc. At an extremely (an I mean very very extremely) low probability an atom is the size of the sun. When things interact they also do it by probabilities. The lower the probability, the longer it takes to interact. (i.e. bring two deuterium nuclei near each other - will they fuse? Well, it depends on how close they are, the closer they are the less time it takes, since there is a greater chance that they are in the same spot at the same time.) So in some sense, that's what time is.