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Anonymous users2024-02-06Such advanced research, learn and learn.
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Anonymous users2024-02-05It reveals: special relativity reveals the connection between space, time, mass, and the motion of matter; General relativity establishes the theory that space and time change with the distribution of matter and the speed of motion.
Einstein's theory of relativity is a basic theory about space-time and gravity, mainly founded by Albert Einstein, and is divided into special relativity (special relativity) and general relativity (general relativity).
The car is moving, and the trees are stationary, so everyone can accept this, but if you say that the trees are moving and the car is stationary, there will be many people who say that you are a fool and a dream. In fact, both statements are true in physics, but the frame of reference is different. This is also the basic starting point for the creation of Einstein's great theory of relativity.
The basic assumption of relativity is the principle of relativity, that is, the laws of physics have nothing to do with the choice of frame of reference.
The special theory of relativity deals with the laws of physics between inertial frames of reference that move in a uniform linear motion, and the latter is generalized to frames of reference with acceleration (non-inertial frames) and is widely used in gravitational fields under the assumption of the equivalence principle.
The theory of relativity subverts the common sense concept of the universe and nature, and proposes new concepts such as "relativity of time and space", "four-dimensional space-time", and "curved space". The special theory of relativity was proposed in 1905, and the general theory of relativity was proposed in 1915.
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Anonymous users2024-02-04Explain in layman's terms what the theory of relativity is about.
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Anonymous users2024-02-03d.The unity of absolute and relative in time and space.
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Anonymous users2024-02-02This is the translation of the thirteenth episode of Thinking Like Einstein - Criticism of the Einstein Movement by Professor Li Hao, a famous Chinese mechanist and educator.
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Anonymous users2024-02-01How physics went from Newton's time to Einstein's time.
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Anonymous users2024-01-31Explain in layman's terms what the theory of relativity is about.
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Anonymous users2024-01-30How physics went from Newton's time to Einstein's time.
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Anonymous users2024-01-29Einstein's theory of relativity.
First of all, consider the classical view of space-time, that is, Galileo's view of space-time, where time is synchronized between different inertial frames, and there is a simple addition and subtraction relationship between vectors and velocity. In the field of mechanics, there is no difference for the time being, but for the electromagnetic phenomenon, which is a phenomenon about high-speed motion, there is a contradiction in the classical view of space-time, and the wave equation reflects that the propagation speed of electromagnetic waves in a vacuum is the speed of light, but which reference frame is this speed relative to? If we change to another frame of reference, the form of this wave equation will change and does not satisfy the requirements of the covariance of physical laws (i.e., in all inertial frames, physical laws should have the same form, as Newton's laws satisfy). >>>More
The main points of special relativity:
1) The principle of special relativity (principle of special covariance): all inertial frames of reference are equal, that is, the form of physical laws is the same in any inertial frame of reference. This means that the laws of physics are the same for an observer at rest in a laboratory as for an electron moving at high speed and uniform speed relative to the laboratory. >>>More
s t(t) mass: kg m(m) displacement: m r momentum:
kg*m s p(p) speed: m s v(u) energy: j e >>>More
I only know philosophy, but I don't know much about physics, so I looked it up. It says: >>>More
How physics went from Newton's time to Einstein's time.