They create some illusive picture before the public. General relativity concepts have become very popular. Then how, dark matter and dark energy can repel the stars and galaxies and clusters to run away from the center of the Universe, that too at accelerated speed? The concepts are discussed with a bold hypothetical consideration very thoughtfully by the Author. Therefore, why, gravitational acceleration of objects having different masses is the same in similar vicinity of a massive body? That should be directly proportional to the masses of the objects then, verifying it is not so? Why and how gravity behave differently from other forces? Property of gravity is only attraction and no repulsion. While, discussing on time dilation, it is natural to analyze in deep, the working of atomic clock and the futuristic clock also, which is being installed by NASA in space within a few months. While, exercising on some one topic, innovative facts get revealed. In this article, the miss-concept in respect of length contraction and time dilation is discussed in detail. Hence mistakes in measurement of distances and related factors are bound to persist in those performed measurements. Thousands of stellar bodies are mapped, assuming speed of light c as constant irrespective of relative motion between observer and the source-star. But, measurements in space are being done of speed of light irrespective of relative motion between observer and the source of light signal. All the experiment performed in that respect measure speed of light w.r.t. But they considered it constant c irrespective to motion of light source, motion of observers. To start to derive relativity formulae, called Lorentzian transformations, they assumed speed of light equal to c on the basis of experiments performed till then to measure speed of light. Because, its observations are interpreted on the basis of initial assumed facts considered as basic facts, In case of Relativity, it has happened so. If the basic assumed fact is not fully correct, It's experimentation leads the concerned topic towards other way. To find the facts further, we perform experiments, draw results on the basis of basic facts assumed. We generate basic mathematics to express scientific concepts, those are crept in our mind. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any errors. " There must be no barriers to freedom of inquiry. Therefore the speed of light is neither an universal constant (c), nor it is " invariant under Lorentz' transformations ", thereby destroying the 2 main pillars of Einstein's SR (Special Relativity). waves-do possess a rest mas and they can be damped in " classical " and quantum ways as damped harmonic oscillators (classical) and superposing waves (QM). In recent years (2001-2005), the experiments through which Lene Westengarten Hau succeeded in slowing down, stopping, and making restart a laser light pulse by making it pass through optical molasses and ultra-cold sodium vapors of BEC (Bose-Einstein Condensates) can be interpreted as final and persuading evidence that photons –being both particles and e.m. Īlthough the postulate of " photon-having-zero-rest-mass " became over the years a sort of " dogma ", routinely repeated in thousands of physics textbooks and scientific articles, great physicists like two " fathers " of Quantum Mechanics: Erwin Schrödinger and Louis De Broglie, never believed that photons were really " massless " at rest, and many other remarkable physicists challenged this conviction as well. So no theory is perfect, even if expressed with mathematical formulas. Scientific theories do not show the laws of nature, but are our understanding of physical phenomena to explain the nature and closeness of the common phenomena to the dominating rules of nature. Phenomena are the appearances, which constitute our experience noumena are the (presumed) things themselves, which constitute reality. According to Kant, it is vital always to distinguish between the distinct realms of phenomena and noumena. Still we are using philosophical concepts in the physics. For this reason, Newton had named his book "Mathematical Principles of Natural Philosophy". Before Newton, physics was descriptive and analytic, and physicists had not used mathematics yet, so physics was closer to philosophy than science. In the early days physics was a part of the philosophy. The question is what relationship is between being and time and whether in physics, being and time are separable? In this essay, I have answered these questions. In this essay, I have reviewed physical being and time, because everything in nature is a physical entity. Generally, there are three approaches of religion, philosophy and science to being and time. Understanding of being and time has always been interesting and difficult for mankind.
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