- #1
asca
- 22
- 2
- TL;DR Summary
- How can an interferometer detect Gravitation waves, if the change in space time due to gravity affects all the rulers (and clocks) in that spot?
Sorry if the question has been already answered, but I didn't manage to find it. Let's go back to ligo detection of gravitational waves, my question is the following: if space time changes its texture due to a gravitational effect, all the rulers (and clocks) in that spot will be affected, so also the electromagnetic wave will have its own ruler and clock changing the same way they change for the LIGO arm, and so there should not be any change in the number of wawelenghts and no interference pattern changes, so no detection. What am I missing?