3 ms·
What is observed is the delay between the two signals. Fractional speed difference is calculated from it. As I understand, there is little chance that the 2 s
by alok-g 9y ago
What is observed is the delay between the two signals. Fractional speed difference is calculated from it. As I understand, there is little chance that the 2 second delta isn't real.
- SideburnsOfDoom 9y agoOK, but there are other possible explanations besides fundamental physics: either the order of events at the source, or the effects of the interstellar medium along the way.