3 ms·
As I interpreted it, the critical part of his explanation is the fact that the higher density part shifted from the back to the front. If that change in density
by Confusion 15y ago
As I interpreted it, the critical part of his explanation is the fact that the higher density part shifted from the back to the front. If that change in density would be due to actual photons shifting that way, then those photons would have traveled faster than light (whereas the entire 'blob', on average, traveled exactly at the speed of light).
- msutherl 15y agoCould be explained if the photos leaving the source look like this: :::::..... and arrive like this: :::::.::, where the 'tip' folds back on itself to become visible, still before the original bulk of the photon cluster.