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- Special relativity is an explanation of how speed affects mass, time and space. The theory includes a way for the speed of light to define the relationship between energy and matter — small amounts of mass (m) can be interchangeable with enormous amounts of energy (E), as defined by the classic equation E = mc^2.
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- Profound implications. Relativity is one of the most famous scientific theories of the 20th century, but how well does it explain the things we see in our daily lives?
- Electromagnets. Magnetism is a relativistic effect, and if you use electricity you can thank relativity for the fact that generators work at all. If you take a loop of wire and move it through a magnetic field, you generate an electric current.
- Global Positioning System. In order for your car's GPS navigation to function as accurately as it does, satellites have to take relativistic effects into account.
- Gold's yellow color. Most metals are shiny because the electrons in the atoms jump from different energy levels, or "orbitals." Some photons that hit the metal get absorbed and re-emitted, though at a longer wavelength.
Sep 18, 2024 · special relativity, part of the wide-ranging physical theory of relativity formed by the German-born physicist Albert Einstein. It was conceived by Einstein in 1905. Along with quantum mechanics, relativity is central to modern physics.
- The Editors of Encyclopaedia Britannica
Understand the effects of relativistic motion. Calculate the dilated time or contracted length due to movement close to light speed, for Higher Physics.
Feb 1, 2022 · Albert Einstein's 1905 theory of special relativity is one of the most important papers ever published in the field of physics. Special relativity is an explanation of how speed...
- 1 min
- Vicky Stein
As an introduction, special relativity is the study of high velocities, those close to the speed of light. Special relativity is based on two fundamental principles; the constancy of the speed of light and the universality of the laws of physics, which lead to the ideas of spacetime and 4-vectors.
Modern relativity is divided into two parts. Special relativity deals with observers who are moving at constant velocity. General relativity deals with observers who are undergoing acceleration. Einstein is famous because his theories of relativity made revolutionary predictions.
Special relativity corrects the hitherto laws of mechanics to handle situations involving all motions and especially those at a speed close to that of light (known as relativistic velocities). Today, special relativity is proven to be the most accurate model of motion at any speed when gravitational and quantum effects are negligible.
