Speed Of Light
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Answering those questions takes us on an amazing journey through space time physics and measurement and the tale hasnt quite been told yet.
Thats the reason why no object can move at the speed or faster than the speed of light.
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Speed of light. It is often stated that the speed of light is constant and that nothing can travel faster than the speed of light. The value of 299792458 meters per second 186282 miles per second is the speed of light in a vacuum. Speed of light speed at which light waves propagate through different materials. Therefore infinite energy will be required to move the object which is impractical.
In miles per hour light speed is well a lot. The speed of light in vacuum commonly denoted c is a universal physical constant important in many areas of physicsits exact value is defined as 299 792 458 metres per second approximately 300 000 kms or 186 000 misit is exact because by international agreement a metre is defined as the length of the path travelled by light in vacuum during a time interval of 1 299 792 458 second. The special theory of relativity implies that only particles with zero rest mass may travel at the speed of light. Tachyons particles whose speed exceeds that of light have been hypothesized but their existence would violate.
And why does it matter. Faster than light also superluminal or ftl communications and travel are the conjectural propagation of information or matter faster than the speed of light. The speed of light in a vacuum is 299792458 metres per second a figure scientists finally agreed on in 1975 but why settle on that figure. The confirmed exception.
The speed of light within a given material is called the phase velocity of light in that medium in this case the charged particle emits a form of electromagnetic radiation thats become called cherenkov radiation. In a vacuum the speed of light is 299792458 meters per second. Look it up now. Consider this the speed of light is 300000 kilometers per second 186000 miles per second and when an object moves at this speed its mass will become infinite.