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You are here: Experts > Science > Space/Astronomy > Space Exploration > Few more gravity and 4th Dimension related questions...
Space Exploration - Few more gravity and 4th Dimension related questions...
Expert: Kenneth Renshaw - 10/27/2009
Question
QUESTION: Hi Sir,
I gone through your past Qustions and answers, on 7/17/2009 some questions asked.
(1. What is a Black Hole and in what circumstances a Black Hole is created?
1. A black hole is when a very large star collapses at the end of its life (after a supernova), and is so dense that the gravity won't even let light escape)
With in that you mentioned that, Gravity can control light.
If you dont mind can you please explain with Best example which is happening in earth regarding control of Light by Gravity.
Thanks N Regards,
Dinesh
ANSWER: Hi, thanks for writing. Gravity can bend the path of light (even though it has no mass), as well as the path of an object with mass. Light cannot escape a black hole, and a massive object like the Sun has been shown to change the apparent position of a star during a total solar eclipse. This is since empty space itself is changed in the presence of mass. Write anytime.
---------- FOLLOW-UP ----------
QUESTION: Hi sir,
Thanks for answering.... and today i need some of the clarification of below questions
1) Need to know about 4th Dimension? or E=Mc^2 detailed and basic manner? Can we do any basic experiment on that (E= Mc^2)? If yes, guide me to do so……(Time Machine).
2) Need to know about how gravity forms and what is the basic physics thing beyond on the formation of Gravity? How can we create High gravity and no Gravity on earth artificially?Is gravity varies according to size of planets?
3) Even through moon and earth located in same place(Near by)in solar system, why moon doesn’t have any living creature as earth has?
Please explain...........
Thanks N Regards,
Dinesh kumar.
Answer
1) time has been shown to slow with velocity (atomic clocks on jets), and gravity, like space can change in the presence of these. 2) gravity occurs in the presence of mass. The more mass, the more the gravity. It can be produced artificially by centrifugal force. The more mass of a planet, the more the gravity. 3) the Moon has no liquid water (although recent probes have found ice), alternating far too high and low temperatures for life to exist, and too little air and too much radiation for life. Write anytime!
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