Neutrinos are massless particles, however most of everything we experience has mass… Is it possible there’s benn an overall shift in time for particles with mass while the massless particles rema in unaffected ? Schrodinger https://la-maison-florent.com/nos-boutiques/a-dives ‘s equation contains a derivitive w/ respect to time… Einstein said the speed of light is constant for a given frame but could that be true only for particles containing mass, since mass is a function of speed ? By having no mass, neutrinos avoid having a relationship with their velocity.
Therefore, the “Next Tachyon” in any Interaction with the slow Universe may come from almost any other Location in the Universe. You state, “Tachyons, in a sense, re-introduce the concept of rigid bodies into relativistic quantum mechanics.” “The imaginary result for the rest-mass of Tachyons offends only the traditional way of thinking and not observable physics.” Rather than a Time dimension existing, the time variable seems to represent information about other information, and the information might be (e.g.) “position number has changed”. Position can go from 1 to 2, and then back to 1 again.
Light from the edges of the 42 million light-years sphere began its journey to where the earth developed about 13.7 billion years ago. But during the trip, the intervening space multiplied itself 1090 times. The spherical shell from which the light began is about 46 billion light-years away. You might also be wondering how a galaxy is ever able to surpass the speed of light barrier in the first place; for that, see our answer to a previous question. When you have to drive with a trailer, you must respect the speed limit set by the trailer legislation.
Only the peculiar velocity lets parts of space communicate, so only that velocity has the speed of light limit. The recession velocity is an illusion created by the expansion of space. On cosmological scales, the universe is extremely uniform and simple. It’s called the scale factor, which represents the scale of space.
These UHaul trailer speed limit rules apply if the total weight does not exceed 12 tonnes. Beyond that, do not go faster than 40 mph on expressways. “This is where the erroneous conclusion comes from that grandfather paradoxes may happen. It is ignoring the existence of an arrow of time; not faster-than-light signalling.” The only assumption is special relativity , and then we examine the consequences of the possibility of signaling along spacelike intervals, and find that it implies the ability to construct causal loops, as Einstein explained. This is where the erroneous conclusion comes from that grandfather paradoxes may happen.
If workers are present , drivers must slow to 45 mph (72 km/h) for the workers’ safety. Speed limits in Connecticut are normally 65 mph (105 km/h) on rural freeways; up to 55 mph (89 km/h) on rural divided and up to 50 mph (80 km/h) on rural undivided highways. In urban areas speed limits vary from 25 mph (40 km/h) on residential streets and central business districts, 30 to 40 mph (48–64 km/h) on arterial roadways, and from 45 to 55 mph (72–89 km/h) on urban freeways.
Scharnhorst has done the calculations and finds that it is. For photons travelling perpendicularly between plates separated by 1 micrometre, the speed of light is increased by about one part in 1036 over its value in the vacuum. However, this effect is too small to be measured by any experiment.
In Nevada, for example, the limit on rural interstates is 80 mph, both for cars and trucks. A step to the west, in California, things are a little different. Cars have permission to go at 70 mph, while trucks can travel no faster than 55 mph. Other states may have completely different rules for specific road segments and 2-lane or 4-lane roads. This situation puts more pressure on the driver, who has to be observant and cautious about way too many rules on the road. The 70 mph speed limit was authorized by House Bill 1060, which was signed by Governor Tom Corbett on November 25, 2013.
When the dough is placed in an oven, it begins to expand, or, more accurately, to stretch, keeping the same proportions as it had before but with all the distances between galaxies getting bigger as time goes on. Another way of thinking of it is to ask “what is the maximum possible speed of communication for two observers moving apart with speed v”? This is not logically impossible, but does seem unlikely. But a spaceship is not a particle, and has its own arrow of time determined by which way its entropy is increasing for it. So a faster than light spaceship has a thermodynamic arrow of time that points the “wrong way” relative to the coordinate arrow of time of objects at rest in some intertial reference frames. Sergei, it is an elementary fact that FTL even in special relativity implies time travel.