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Relativistic rocket means any spacecraft that travels close enough to light speed for relativistic effects to become significant. The meaning of "significant" is a matter of context, but often a threshold velocity of 30% to 50% of the speed of light (0.3 c to 0.5 c ) is used.
New York: Academic Press Inc. ISBN 978-0-12-654670-5. OCLC 803152309. Whittaker, E. T. (1999). A treatise on the analytical dynamics of particles and rigid bodies : with an introduction to the problem of three bodies (4th ed.). Cambridge University Press. ISBN 0-521-35883-3.
A free particle with mass in non-relativistic quantum mechanics is described by the free Schrödinger equation: (,) = (,) where ψ is the wavefunction of the particle at position r and time t . The solution for a particle with momentum p or wave vector k , at angular frequency ω or energy E , is given by a complex plane wave :
It did not include relativistic effects; It violated the conservation of energy, momentum and angular momentum; It was inconsistent in that it gives different galactic orbits for gas and for stars; It did not state how to calculate gravitational lensing from galaxy clusters. By 1984, problems 2 and 3 had been solved by introducing a Lagrangian ...
An antimatter rocket is a proposed class of rockets that use antimatter as their power source. There are several designs that attempt to accomplish this goal. The advantage to this class of rocket is that a large fraction of the rest mass of a matter/antimatter mixture may be converted to energy, allowing antimatter rockets to have a far higher energy density and specific impulse than any ...
This means, by definition, that with respect to S the distance between the two rockets does not change even when they speed up to relativistic velocities." [ 1 ] Then this setup is repeated again, but this time the back of the first rocket is connected with the front of the second rocket by a silk thread.
In the second edition, the corresponding sections were scrapped and replaced with more topics in the well-established quantum electrodynamics, and the two parts were unified into one, thus providing a one-volume exposition on relativistic quantum field theory with the electromagnetic interaction as the prototype of a quantum field theory.
The equation of state for ordinary non-relativistic 'matter' (e.g. cold dust) is =, which means that its energy density decreases as =, where is a volume.In an expanding universe, the total energy of non-relativistic matter remains constant, with its density decreasing as the volume increases.