18APR 2025
Gravitational field Physics

Gravitational field Physics

Variation of g with distance from the centre of a uniform spherical mass of radius, R Variation of g on a line joining the centres of two point masses If m1 > m2 then The potential at a point in a gravitational field is equal to the work done bringing a 1kg mass from infinity to that point. The…

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09APR 2025
Space time distortion

Space time distortion

We are used to thinking of time as absolute and universal, so it is disturbing to find that it can flow at a different rate for observers in different frames of reference. But consider the behavior of the γ factor shown in figure h. The graph is extremely flat at low speeds, and even at 20% of the speed…

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31MAR 2025
Gravitational force equation Calculator

Gravitational force equation Calculator

Newton s Law of Gravity states that Every particle attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the distance between them. where, G = Universal Gravitational Constant = 6.6726 x 10-11N-m2/kg2 m1 = Mass of Object 1 m2 = Mass…
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22MAR 2025
What is dark matter?

What is dark matter?

Years ago I read an article by Martin Rees, in which he surveyed the options for what the dark matter of the universe might be. I forget the exact wording, but near the end he said something like “There are so many candidates, it would be quite surprising to find ourselves living in a universe without…
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13MAR 2025
Quantum Physics, Theories

Quantum Physics, Theories

Quantum theory is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the atomic and subatomic level. The nature and behavior of matter and energy at that level is sometimes referred to as quantum physics and quantum mechanics. In 1900, physicist Max…
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04MAR 2025
Gravitational pull on an object

Gravitational pull on an object

The framework the Universe is built from (space-time) is flexible and is affected (to a degree) by the *contents* of the Universe. Particles with mass *deform* spacetime. The effect is very, very weak - but it s there, and it s cumulative. You and I have hardly any effect, but a big ball of stuff like…
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23FEB 2025
What is black matter?

What is black matter?

Share This article Physics is unique in the scientific world, in that its reliance on math means it can come to a broad consensus on matters with very little evidence available. In Earth science, a veritable mountain of evidence can’t fully bury the issue of global warming, and even with the vast majority…
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14FEB 2025
What is the laws of relativity?

What is the laws of relativity?

Law of relativity is another and it states that nothing is good or bad, big or small until you RELATE it to something The law of relativity tells us that everything in our physical world is only made real by its relationship or comparison to something. Light only exist because we compare it to dark…
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