PDA

View Full Version : blackholes


john88888
Aug26-10, 11:43 PM
Imagine there is a piece of paper negative mass simply pushes up while mass pushes down doesn't that mean that a blackhole would be created by mass and negative be same a rip in the paper or in other words space

ps I am not very advanced in physics so don't flame me and try to keep your answers simple

thank you

betel
Aug27-10, 05:36 AM
Using some punctuation marks and proper grammar would help us to understand what you want to say.

As a first guess. Using negative mass is a very bad thing to do in physics. If you do so, you open Pandora's box.

gk007
Aug27-10, 07:04 AM
A black hole is created by a huge amount of mass concentrated in a infitesimally small point pushing down on space-time because of gravity. It creates a rip because it is so small and dense.

This is analogous to pushing down on a piece of card with a pin, it creates a rip.

On the other hand negative mass particles could hypothetically be used to keep a wormhole open (and a wormhole is very similar to a black hole, except it is two-way).