________________
Black Holes : Imaginary Ideas Of Their Structure
69
7,50,000 kms/second. With the change of velocity, there can be more or fewer red shifts in the spectrum received from the object.
Here I have theoretically represented only my views in a descriptive form only in accordance with the doctrines of Jain philosophy. I conclude this article with the hope that Jain scholars of physics will help me in future to do more research work mathematically, precisely in this subject.
Date : 16.11.96, Bhavnagar.
References:
1. Each new advance poses still more questions, sometimes making the universe more puzzling, not less.
[Black Holes, Quasars And The Universe' by Harry L. Shipman, Houghton Mifflin Company, Bostan, U.S.A., p.14).
2. If we cannot see a black-hole, how do we tell what it looks like? The pencil and paper calculations of the theoretical physicists help us here. [Ibidem, p.14).
3. The radius is numerically equal to 2.95 kilometres times of the mass of the hole in solar masses. Our ten-solar-mass hole is thus 30 kilometres in radius or 60 kilometres across. [Ibidem, p.71).
4. On Phobos the force of gravity is so small that men's arm would be strong enough to put a small stone into orbit around it, or even send it into orbit about Mars itself, some 9000 kilometres away.
The escape velosity is only 5 m/s for Phobos....... [Black Holes, by Jean-Pierre Luminet, Cambridge University Press, U.K., p. 6, 7).
5. To put a satellite into orbit, the rocket launcher has to reach a certain altitude, incline itself to be parallel to the Earth's surface and then increase its velocity to at least 8 km/s. At this velocity the centrifugal force (directed into space) balances the gravitational force (directed towards the centre of the Earth). [Ibidem,p. 6].
6. This critical velocity - identical for a pebble or a rocket - is called the escape velocity. On the Earth's surface it is 11.2 km/s, and it can easily be calculated for any planet, star or other celestial body. [Ibidem, p.7).
7. The escape velocity is only 5 m/s for Phobos and 2.4 km/s for the moon, but 620 km/s for the Sun. From a more dense star, such as a white dwarf, it reaches several thousands kilometres per second. [Ibidem, p.7].
8. The greater the mass, the greater the escape velocity, and for a given mass
Jain Education International
For Private & Personal Use Only
www.jainelibrary.org