Excellent points.Filip Larsen said:The relativistic mass of the star will grow, but not the rest mass. A star collapsing to a black hole is a very real, local, physical process and not an "observational" effect only, like relativistic mass. You can think of relativistic mass as a kind of a "transformation cheat" used in special relativity to make many other mechanical interactions appear Newtonian.
The theory of relativity is a scientific theory developed by Albert Einstein in the early 20th century. It explains how gravity works and how objects move in space and time.
The Newtonian theory of gravity is based on the idea that gravity is a force between two masses, while the theory of relativity describes gravity as the curvature of space and time caused by massive objects.
Special relativity deals with the laws of physics in non-accelerating reference frames, while general relativity includes the effects of gravity and acceleration.
The theory of relativity has been confirmed through numerous experiments and observations, including the bending of starlight by the sun's gravity, the precession of Mercury's orbit, and the time dilation of moving atomic clocks.
Yes, the theory of relativity has practical applications in various fields such as GPS technology, particle accelerators, and space travel. It also plays a crucial role in modern physics and our understanding of the universe.