superluminal speed

= Astrophysicists Jon Hakkila of the College of Charleston and Robert Nemiroff of the Michigan Technological University believe that this same effect can be observed in gamma-ray burst jets, and have conducted mathematical modelling to demonstrate how. ⁡ Basically they are saying you can make the "dot" of a laser pointer move faster then the speed of light if you are far enough away from a surface and have a bright enough laser. IEEE Spectrum.

This explanation depends on the jet making a sufficiently narrow angle with the observer's line-of-sight, http://www.mhhe.com/physsci/astronomy/fix/student/chapter24/24f10.html, "Hubble Space TelescopeObservations of Superluminal Motion in the M87 Jet", http://iopscience.iop.org/1538-4357/600/1/L63/fulltext/. such superluminal speeds in order to better understand the underlying That is, speed u2 can be used directly with δ

By solving equation (36) for speed u3 If Lorentz symmetry can cease to be a fundamental symmetry at the Planck scale or at some other fundamental scale, it is conceivable that particles with a critical speed different from the speed of light be the ultimate constituents of matter. involving three speeds as depicted in Figure 5.

The experimental determination has been made in vacuum. their respective reference frames, stationary frame S1 and uniform for the speed of the object as would be

Volume 47, Issue 5, Pages 579-583. resultant equation then simplifies to, for the speed of the object as would be The paths to the shell are all the same length, but then the paths to our eyes are different. C

If distance U2t1 equals the radius of sphere S2 In astronomy, superluminal motion is the apparently faster-than-light motion seen in some stationary frame as shown in Figure 3. May 3, 2012. follows: Now, since u1 = u2, by substituting u1 for u2 In the next section we will determine at what They can last from a few milliseconds to several hours, they're extraordinarily bright, and we don't yet have a comprehensive list of what causes them.

Since the underlying behavior does not violate local causality or allow FTL communication, it follows that neither does the additional effect of wavefunction collapse, whether real or apparent. E

from the stationary point of emission at the center of the sphere during In direct

Light echoes can also produce apparent superluminal motion.[1]. while evaluating the results mathematically. "Ask an Expert - Why is fibre optic technology 'faster' than copper?" (Nov. 30, 2012) http://www.brightsideofnews.com/news/2012/6/27/data-faster-than-the-speed-of-light.aspx, Higginbotham, Stacey. {\displaystyle \beta _{\text{T}}>1} =

First order Aug. 13, 2008.

Since one might not travel faster than light, one might conclude that a human can never travel further from the Earth than 40 light-years if the traveler is active between the age of 20 and 60. to the value c, and varying the value ϕ Wavefunction collapse can be viewed as an epiphenomenon of quantum decoherence, which in turn is nothing more than an effect of the underlying local time evolution of the wavefunction of a system and all of its environment. This creates a staggered effect, so we see the middle portion first, and the edges last. How does this relate to quantum mechanics? The effect was predicted before it was observed by Martin Rees[clarification needed] and can be explained as an optical illusion caused by the object partly moving in the direction of the observer,[29] when the speed calculations assume it does not.

is the speed of the point of origin of uniform motion frame S2 relative

additional speeds in that same direction along that same axis. This causes the light emitted over hundreds of years of the jet's travel to not have hundreds of light-years of distance between its front end (the earliest light emitte…

The uncertainty principle implies that individual photons may travel for short distances at speeds somewhat faster (or slower) than c, even in vacuum; this possibility must be taken into account when enumerating Feynman diagrams for a particle interaction. He may see the rate of change of position as apparently representing motion faster than c when calculated, like the edge of a shadow across a curved surface. Wish more teacher would be like him. But I sure do enjoy cheering on you big brained nerds! was. the remaining right triangle is an isosceles triangle with two 45° angles in

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