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💥it's Okay To Not Be Okay 💥We must be careful not to believe things simply because we want them to be true. No one can fool you as easily as you can fool yourself.! 🤓👽🧟💥

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June 13, 2021

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How all particles and fundamental forces except gravity interact

May 13, 2021

The Standard Model is a physics theory that explains how all particles and fundamental forces except gravity interact. In the 1970s, scientists realized that the accepted theories of the time predicted that elementary particles could not have mass. Except that they knew that wasn’t true; experimeThe sun helped prove Einstein right...nts had already shown that these particles did have mass. Something was missing. Three physicists (Robert Brout, François Englert, and Peter Higgs) developed a mechanism that explained this apparent conflict. This mechanism was later an essential ingredient of what is now the Standard Model of particle physics. They proposed that the Standard Model was missing a field that would interact with elementary particles and that the interaction gives these particles mass. Weinberg, Salam, and Glashow later constructed a complete theory explaining the known interactions of particles, along with their masses. This theory contained an essential ingredient – the...

Gravity in general relativity

May 19, 2021

Gravity is a distortion in space-time, which is felt as a pull on things proportional to a combination of their energy and momentum. The source of the curvature is the stress-energy tensor and this makes no distinction between mass and energy. They are treated as related by the famous E=mc^2. When you first learn about gravity in school, you learn Newton’s law: that the force of gravity between two objects, one of mass M1 and one of mass M2, has a strength proportional to the product M1M2. { F = (GM1M2)/r^2} But that was true before Einstein. It turns out that Newton’s law needs to be revised: the Einsteinian statement of the law is (roughly) that for two objects that are slow-moving (i.e. their speed relative to one another is much less than c, the speed of light) and have energy E1 and E2, the gravitational force between them has a strength proportional to the product E1E2. How are these two statements, the Newtonian and the Einsteinian, consistent? They are consistent becaus...

✨Theory of relativity

January 28, 2021

Language Theory of relativity The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity. Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravitation and its relation to other forces of nature. It applies to the cosmological and astrophysical realm, including astronomy. Two-dimensional projection of a three-dimensional analogy of spacetime curvature described in general relativity The theory transformed theoretical physics and astronomy during the 20th century, superseding a 200-year-old theory of mechanics created primarily by Isaac Newton. It introduced concepts including spacetime as a unified entity of space and time, relativity of simultaneity, kinematic and gravitational time dilation, and length contraction. In the field of physics, relativity improved the science of elementary particles and their fun...