Posted - 15 Jan 2009 : 08:07:59
| Hi Alan,
You are right. So called "black hole" is an object like a neutron star.
But to say exactly, there no black holes in the nature.
The notion of "black hole" was introduced by Pierre Simon Laplace in 1795.
He thought that light obeys to gravity force. That is to say the photon has a mass.
In that case it must fly in cone-shaped trace, and at some gravity potential it must return back, i.e. flying in elliptic trajectory and never leaving a vicinity of its source.
Indeed, the photon has no gravitational mass. And it does not obey to gravitational interaction.
Lets remember that gravitational force is
F = gamma*m(1)*m(2)/R^2
and if m(1) = 0, F = 0
More detailed on http://bourabai.kz/catechesis.html
Really, Dr Halton Arp, the alive classic of astrophysics, has proved that all observed objects called as "black holes" are quasars. See his site http://www.haltonarp.com
The quasars (QSO) are particular state of the matter. See http://bourabai.kz/quasars-e.htm
Two things fill the mind with ever new and increasing wonder and awe, the more often and the more seriously reflection concentrates upon them, the starry heaven above me, and the moral law within me. - Immanuel Kant