Effects of a massive object on light and its relation to the 1919 Eclipse

[JM2107]

[SOLVED] Effects of a massive object on light and its relation to the 1919 Eclipse

What happens to light as it passes near a massive object and how it this principle or concept connected to the 1919 lunar eclipse where Einstein’s Photoelectric theory was proved (both the apparent and actual location of the stars were revealed around the area of the eclipse?

Thanks for any responses in advance.

 

[drag]

Greetings !

Light follows the shortest path through
space-time. The shortest path through
space-time is called the geodesic path.
According to General Relativity space-time
is bent by gravity, or to be more accurate -
curved space-time IS gravity.

Thus, the Sun bends space-time and the path
of light. The effect was predicted by Einstein
as a consequence of GR and the test in 1919
by the British Academy of Science (or something
like that I think) confirmed this. During
the eclipse the Sun was concealed by the moon
which allowed the scientists to see stars in
the background the light from which passed
very close to it on its way to Earth. The stars
were not exactly where they were supposed to be
(a bit farther from the Sun - they were
seen close "behind" the Sun on its path axis
instead of being concealed by it or closer to it)
which meant that their light WAS bent by gravity.
This was the first (I think) real and relativly
accurate confirmation of GR.

Live long and prosper.

 

[M98Ranger]

When light passes near a massive object, it is affected by the object's gravitational pull. This can cause the light to bend or curve, a phenomenon known as gravitational lensing. This effect was predicted by Albert Einstein in his theory of general relativity.

In the 1919 lunar eclipse, this effect was observed and confirmed by Sir Arthur Eddington. He observed that the positions of stars near the sun during the eclipse appeared to be shifted, as predicted by Einstein's theory. This was a significant moment in the history of science, as it provided evidence for the validity of Einstein's theory and helped to establish him as a leading figure in physics.

The principle of gravitational lensing is connected to the 1919 eclipse because it was during this event that the effect was first observed and confirmed. This showed that massive objects, such as the sun, can bend light and affect its path. This discovery has since been used to study and understand the properties of distant objects in space, such as galaxies and black holes.

In addition, the 1919 eclipse also helped to support Einstein's photoelectric theory, which describes the behavior of light as both a particle and a wave. The precise measurements and observations made during the eclipse provided evidence for the theory, further solidifying its acceptance in the scientific community.

Overall, the 1919 eclipse had a significant impact on our understanding of the effects of massive objects on light and helped to confirm some of the most important scientific theories of the time. It remains an important event in the history of physics and continues to be studied and referenced in modern research.