3 ms·
Summary: For small angles, approximation makes it look like gradients (y/x) add simply (a+b). Similarly low velocity in relativity world makes it look like velo
by lordnacho 5y ago
Summary: For small angles, approximation makes it look like gradients (y/x) add simply (a+b). Similarly low velocity in relativity world makes it look like velocities just add as well. With some insight we discover how it really works, including how the approximation makes it look correct for small values.
- ramraj07 5y agoBut who was actually genuine surprised or flabbergasted that there was an extra factor that in macro real life becomes zero but is there in extreme speeds? The un-intuitiveness is typically more to do with understanding what that factor means and where it came from.
- snet0 5y agoThe insight is, in my opinion, more related to the attaching of the idea of "rotation" to space-time, and using that to explain why we can't just add velocities at high "rotations".