Weinberg uses Rindler's definition. In fact, he credits Rindler with having coined the term "event horizon" [and "particle horizon"] in a 1956 paper.
So far, as I understand it, it was in his Thesis.atyy said:Yes, I'd love to know the details if you find out!
No, Rindler is not the first person to use the term "Event Horizon". The term was actually first used by the physicist Wolfgang Rindler in 1956 to describe the boundary surrounding a black hole, but it was later popularized by the astronomer John Wheeler in the 1960s.
The "Event Horizon" is the theoretical boundary surrounding a black hole, within which the gravitational pull is so strong that nothing, not even light, can escape. It marks the point of no return for anything that enters a black hole.
No, Rindler was not the first person to theorize about black holes. The concept of black holes has been around since the late 18th century, and the first mathematical solutions for black holes were developed by Karl Schwarzschild in 1916. However, Rindler's use of the term "Event Horizon" helped to popularize the concept.
Rindler came up with the term "Event Horizon" while studying the effects of accelerating particles in a vacuum. He noticed that the particles would eventually reach a point where their escape velocity would exceed the speed of light, creating a boundary he called the "Event Horizon". He later applied this concept to black holes.
Yes, Rindler's definition of "Event Horizon" is still accurate and widely accepted in the scientific community. However, there have been some refinements and additions to the concept over the years, such as the discovery of supermassive black holes and the understanding of how black holes can emit radiation. But the basic idea of a boundary beyond which nothing can escape remains the same.