Recent content by scakpinar

No, I did not assume that the speed of light is variable in local coordinates. I only thought that the observer’s velocity relative to the black hole event horizon, or the effects of gravitational sources outside this black hole acting on the observer, together with the expansion of space, could...

Is it acceptable to use AI tools only for translation and language phrasing? English is not my native language, and I am going to use AI purely as a writing aid here.

Hello everyone, I have no formal training in theoretical physics or advanced mathematics. I have been trying to build intuition about general relativity, especially black holes and event horizons, by reading popular and semi-technical sources. While reading that time and space effectively...

Hi, I am a neurosurgeon from Turkey with an interest in physics. I don't have formal training in theoretical physics or advanced mathematics, but i enjoy trying to build intuition about spacetime. I joined Physics Forums to ask conceptual questions, learn where my intuitions break down, and get...