Relativistic speed refers to speed at which relativistic effects become significant to the desired accuracy of measurement of the phenomenon being observed. Relativistic effects are those discrepancies between values calculated by models considering and not considering relativity.[1] Related words are velocity, rapidity, and celerity which is proper velocity. Speed is a scalar, being the magnitude of the velocity vector which in relativity is the four-velocity and in three-dimension Euclidean space a three-velocity. Speed is empirically measured as average speed, although current devices in common use can estimate speed over very small intervals and closely approximate instantaneous speed. Non-relativistic discrepancies include cosine error which occurs in speed detection devices when only one scalar component of the three-velocity is measured and the Doppler effect which may affect observations of wavelength and frequency.
![](https://upload.wikimedia.org/wikipedia/commons/thumb/0/00/Lorentz_factor.svg/354px-Lorentz_factor.svg.png)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Lorentz_factor_inverse.svg/346px-Lorentz_factor_inverse.svg.png)
Relativistic effects are highly non-linear and for everyday purposes are insignificant because the Newtonian model closely approximates the relativity model. In special relativity the Lorentz factor is a measure of time dilation, length contraction and the relativistic mass increase of a moving object.
See also
[edit]- Lorentz factor
- Relative velocity
- Relativistic beaming
- Relativistic jet
- Relativistic mass
- Relativistic particle
- Relativistic plasma
- Relativistic wave equations
- Special relativity
- Ultrarelativistic limit
References
[edit]- ^ Kaldor, U.; Wilson, Stephen (2003). Theoretical Chemistry and Physics of Heavy and Superheavy Elements. Dordrecht, Netherlands: Kluwer Academic Publishers. p. 4. ISBN 1-4020-1371-X.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction