# The Mysteries to Black Holes

The mysteries to Black Holes HD – Universe Documentary

A black hole is a mathematically defined region of spacetime exhibiting such a strong gravitational pull that no particle or electromagnetic radiation can escape from it.[1] The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.[2] The boundary of the region from which no escape is possible is called the event horizon. Although crossing the event horizon has enormous effect on the fate of the object crossing it, it appears to have no locally detectable features. In many ways a black hole acts like an ideal black body, as it reflects no light.[3][4] Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.

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1. cschene commented on Dec 22

Per relativity, the rate at which time moves is an inverse function of gravitational force: In other words, the greater the gravitational force the slower time moves. Time actually moves faster on Mount Everest than it does at sea level and that time difference is actually measurable and matches the predictions of our equations.

Given that, in theory, the gravitational force of a black hole is infinite that says my time at the black hole event horizon actually stops and as I fall into the black hole I see the entire history of the universe, from the point of my hitting the black hole event horizon, pass in an instant of my time.

So a question that arises: If time stops at the black hole event horizon is it actually possible for me to completely fall into the black hole or do I remain at the event horizon forever.

As an engineer I do realize that there is no such thing as a singularity in the physical world and the gravitational force of a black hole can be very very large but it cannot be infinite. A “singularity” is actually a point at which our mathematics breaks down: a singularity is not a real thing.

Chris Schene