Astronomy - General Relativity (4 of 17) The Equivalence Principle: Proven in 1919

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We will learn The Equivalence Principle proven in 1919 over a period of 6 months using a total solar eclipse off the coast of South of American by observing the apparent position shift of a star due to gravity well created by the mass of our Sun.

Next video in this series can be seen at:

[akhileshkumar-mugb]

Your passion for teaching is really appreciable, thank you Sir

[synapticmemoryseepage]

This is an excellent demonstration of an instance of the equivalence principle.

[tushardubey]

Congratulations Sir for reaching 600k subscribers Congrats 😀😀

[spaghettic]

Kudos to Arthur Eddington for verifying the prediction of the shift in apparent position of stars during total eclipse

[tsoojbaterdene]

A person throws hexagonal pencil onto the table.What is the coefficient of friction when the pencil is slipping without rolling?

[JohnRoot]

Why is gravity being referred to in these videos as a warping of space rather than a warping of spacetime?

[tonytomov]

General Relativity <=> General Fantasy, BECAUSE: curved trajectory of moving object with mass does not mean unambiguously curved space. :)

[chadhakanwal]

After relativity can you please make a video on black hole's thermodynamics

[alext]

Hold on. The bending of light does not necessarily mean that space is warped. The first conclusion would be that gravity can affect light and perhaps all electromagnetic radiation. This business of curved space is an interpretation only. We know so little about gravity, I think it's a leap of logic to think that space is curved or distorted in any way. Maxwell would probably have found a connection between EM and G. Has EM been found to be affected by gravity in any other experiments? Have any other experiments been done? Probably, they would have to be done on a cosmic scale to produce meaningful results, but I'm sure there's someone out there that has thought about it.