Why is the radial tire considered better than other kinds of tires? Marketing hypes aside (if any), what is the scientific reason/rationale behind the generally accepted claim?
We observe light only radially due to its constant limiting speed for all frames of reference in vacuo, and undefined immediate relativity (indistinguishability) between photons. We infer matter otherwise - both with radial and orbital motion - by emitted light frequency shift, apparent motion...