Culture and Religion

A world view where the guide for society is based on human nature,
 not on ancient scriptures.  Home  or Topic Groups


Black Hole Devours Star

the post:
NASA just recorded a black hole devour a Sun-sized star for the first time ever.

my comment:

The odd thing about this act of devouring a star is the size of the black hole never changes, no matter how much it consumes.

In relativity, a black hole is maximum spacetime curvature down to a geometric point in the 4-D coordinate system being distorted. A point in geometry has no physical size, neither do lines or planes. Nothing in a coordinate system is real; it is used for describing positions. To excuse the misuse of geometry concepts in physics this geometric point is called a singularity so this 'thing' can have mass in it with infinite density.
Because a point has no physical size the black hole, disregarding physics, suggests the mass causing this 4-D coordinate system disruption is also collapsed into this geometric point.
A non-physical geometric point has an infinite capacity and so an infinite amount of mass can be proposed as being in this non-physical geometric point.
The black hole size of zero never changes. If this seems unbelievable then neither is the black hole.

Hit back to go to previous page in history.

Here is the list of topics in this Cosmology Topic Group .

Ctrl + for zoom in;  Ctrl - for zoom out ;  Ctrl 0 for no zoom;
triple-tap for zoom to fit;  pinch for zoom change;  pinched for no zoom