ROUGHLY, a black hole is the result of an exploding star many times more massive than our sun. It’s gravity caves in on itself, compressing the remaining matter to such a degree that a teaspoon of it could weigh many billions of tonnes.
A black hole’s escape velocity (the speed needed to escape the star’s gravity) is more than the speed of light, which is approx. 300,000 km/s or 186,000 miles/s, so even light cannot escape, hence the name, black hole. In theory they are everywhere in the universe, but can’t be seen of course.
The Earths escape velocity on the other hand is a mere 11.186 km/s. (about 25,000 m.p.h.) This is the speed a spacecraft like the shuttle has to reach before it can escape earth’s gravity and go into orbit.
In trying to understand the larger objects in the universe, we rely mostly on Einstein’s theory of relativity – three dimensional science. For the smaller objects – atoms and the more miniscule particles, we rely mostly on quantum mechanics – three dimensional physics.
Scientific theory surmises that a black hole is cone shaped and as far as can be determine, has the top of the cone ( called the event horizon) in our three dimensional space, then narrows down to a vortex at the bottom point something like a whirlpool.
The hypothesis is this bottom point would be infinitesimally small where gravity is absolute and space and time come to what has been termed as a singularity (time and space become the same). This is only speculation really for scientific formulas, devised in our three dimensional universe, come up short when trying to explain exactly what a black hole is.
Why? Because a black hole might not be just three dimensional, it could be multi-dimensional. If so, it cannot be explained by using the narrow, limited thinking of three dimensional science. The universe as a whole and everything in it is most likely far, far more involved and much more magnificent than what we can understand with our limited knowledge.
So if we try to understand black holes without using three dimensional thought, what then might they be and what good does it do us to know anyway?…
Dan’s Quote: “To believe that we are unique in the scheme of things
______________is the height of ignorance and pomposity.”