Bandaids Glow when Opening?! | EVERYDAY MYSTERIES

Congrats!  The next thing I think is quite interesting and would make for a good video is something more about the double slit experiment.  If we had three slits and we only put a detector at one of those two slits would that detector collapse the wave function?  Also what if we had one double slit followed by two more double slits.  If we put a detector on the first double slit but not the second does this collapse the wave function?

If you measure each door then the wave function collapses which means that you see the particle at a specific location. Also the interference pattern disappears.  Here is why this makes no sense:
You could place only one measuring device at door 1
Particle goes through door 2
The measuring device didn't interfere with the particle in any way. No electromagnetic communication took place between the measuring device and the particle.
YET the wave function still collapsed.

Doesn't this prove that it is the knowledge about the information associated with the particle and not the physical interaction of the sensor with the particle that is causing the collapse of the wave function?  What collapses the wave function if the sensor at door 1 never measures the particle at door 2?

If so then is quantum mechanics a scientific theory which is not describing the physical interaction of physical objects which have physical properties but instead is describing information in a quantum system?