The X-rays emitted by matter falling into black holes were a prediction of gravitational redshift via GR. They have been observationally verified.billy_boy_999 said:
russ_watters said:
Good question! One of the early 'gravitational redshift' experiments was (IIRC) a 57Fe gamma Mossbauer effect, over a vertical distance of several (tens of?) metres. I don't know if the experimenters went on to put the source on a higher storey of the lab building, and the detector at a lower one ...billy_boy_999 said:
Light wavelength compression refers to the phenomenon in which the wavelength of a light wave is shortened or compressed as it travels through a medium, such as air or water.
Light wavelength compression is a result of refraction, which is the bending of light as it passes through different mediums with varying densities. When light enters a medium with a higher density, its speed decreases, causing its wavelength to compress.
Yes, light wavelength compression has been well documented and proven through numerous experiments and observations. It is a fundamental concept in physics and is a key factor in understanding the behavior of light.
One common example of light wavelength compression is the bending of light as it passes through a glass prism, which causes the colors of the spectrum to separate. Another example is the phenomenon of mirages, where light is bent as it passes through different layers of air with varying temperatures.
Light wavelength compression plays a crucial role in our perception of the world, as it allows us to see objects, colors, and images. Without this phenomenon, light would not be able to travel through different mediums and our vision would be severely limited.