Quoting PAllan "However, in general relativity, there are examples for material bodies. Consider an orbiting body. Consider the event of passing a certain point on the orbit, and the event of passing the same point one orbit later. The orbit is an an inertial path between these events. However...
Yes, I realize QM would entail that the interference pattern would be destroyed. But I am not trying to observe an electron as it goes through one of the slits. My detector is at the screen itself. It detects the electron as it arrives at the screen (or after if the detector is behind the...
I know this is not possible but I want to know why. Why cannot a directional photon (or electron) detector placed on the screen of a 2 slit experiment detect which slit an individual photon comes from without destroying the fringes? Fire the photons one at a time. They can be detected...
One can use the Principle of Extremal Aging to calculate the path of a freely moving body (in an inertial frame not subject to any forces) in spacetime, curved or flat. Why extremal? Why not just maximal? All the examples I know of involve maximum proper time for a freely moving body. For...
I would like to know whether it is possible to determine which path information for a photon reflecting from a mirror as shown in the book QED by Feynman page 40 and 43 (or available by googling mirror reflection Feynman or similar) if photons are fired one at a time from the source (unaimed)...
In that case why is a gravity wave billed as a wave in space-time, not just a wave in space?
Curved space-time slows clocks ie clocks slow in a gravitational field (as compared with clocks out of the gravity field)
That is what makes me think that a gravity wave should slow a clock. Colin
Hello Captain, I am interested in the curved time component of gravity waves. Since time moves more slowly in curved space-time (relative to time in flatter space-time) does this mean that there is a (tiny) time-slowing effect when a gravity wave passes? If so, could this be measured in a...