Quote:“Einstein started working from information where the relative velocity is zero – what we knew about, such as rest mass, kinetic energy and so on – and then extrapolated what is known in the Newtonian world for velocities lower than c.“Our thinking was: how do we make use of the essential essence of Einstein’s theory for velocities above c?”Mathematically, what the mathematicians assumed is that for infinite relative velocity, there is a fixed relationship between the velocities of the two observers: where u is the first observer’s velocity, v is the second, the product of the two velocities is always c2.“What we have is an equivalent theory [to Special Relativity] that applies for velocities beyond the speed of light. That theory is different from Special Relativity, but it has many of the same characteristics.And readers with an interest in either physics or maths will be delighted with the vital assumptions: there has to be one, and only one, speed of light; and in all cases, a mathematical singularity occurs at the speed of light.“If you believe what we’ve done,” Professor Hill said, “there can only be one speed of light in a universe. If there was a second speed of light, our mathematics wouldn’t work.
Quote:To get from the theory to any practical test is another matter entirely, and Professor Hill freely admits he doesn’t know how that might be achieved.
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Quote:traveling faster than light one becomes "infinite mass", somewhat akin to a ghost(??). what would one "see"?
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Quote:Einstein showed in his paper on Special Relativity the relationship between relativistic (M)and rest mass (Mo).M is Mo divided by the square root of 1 minus (velocity squared divided by speed of light squared).When V=C then you have Mo divided by zero, which is infinite. i.e. M becomes infinite, as does the energy needed to accelerate it.Essentially as you accelerate a mass towards the speed of light an increasing amount of the energy used is converted into mass,according to Einstein's energy mass equivalence equation (E = M*C squared).So nothing with rest mass can reach the speed of light. Only massless particles such as photons (light) Try plotting the relationship between M and V on Excel- it is quite instructive
Quote: I'm probably not being original, But at what point would it be impossible to accelerate an object any more in reality( not on paper)
Reality is a figmentnewton of your imagination
Quote:2) Figure out what it is about particles possessing mass that determines their spatial coordinates in the fabric of space-time. Quantum theory tells us that an electron has a percentage chance to be found on either side of a barrier around a nucleus. What is seldom said is that there is also a certain probability that that same electron can be found on the other side of the universe. This 'probability' of finding it there is vanishingly small but still very real. Build a star ship that can manipulate this quantum probability and you can 'pop-up' anywhere in the Universe you want. I leave the details to you guys,
Quote:4) If my back-of-the-envelope Lorenz transformation math is correct, if we can get a ship up to 99.9% speed of light the crew would experience 1 year for every 22.36 years Earth side observers would experience. Still, the size of the Universe dwarfs this so that explorers--even though removed from Earth kin due to time dilation--would still only find a tiny fraction of star systems reachable in their own lifetimes.
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Quote: In 1999 observations by the Hubble Space Telescope, the motion of M 87's jet was measured at four to six times the speed of light.
Quote: Quote: I'm probably not being original, But at what point would it be impossible to accelerate an object any more in reality( not on paper)Never. You can keep accellerating and getting closer to C.In practical terms, from the point of view of a stationary observer, there isn't much point as you get past 90% or so. From the point of view of earth, a probe launched a 0.9C toward a star 100 light years away will arrive in 111 years, one moving at 0.99C will get there in 101 years, and one moving at 0.99999C will get there in just over 100 years (not much difference between 101 and 100).But from the point of view of someone riding the probe, it's a huge difference. Most of the additional energy put in to accelleration ends up increasing your time dilation. On the ship, a 100 light year trip at 0.9C takes 48.5 years. At 0.99C it takes 14.25 years, and at 0.99999C it takes just over 5 months.Costs a LOT of energy, though. With the best current technology, we'd be lucky to achieve 0.01C.Jarad
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Quote: The Orion pulse drive theoretically could achieve .1C, which just relies on nuclear bombs, and if powered instead by pulses from antimatter/matter reactions, theoretically .5 - .8 C.
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Quote:The interest compounds as you go.
Quote:Photons are their own antiparticles, actually.
Quote:If you and your ship had no mass in this universe you could go as fast as you want..."C" would be meaningless. Without mass you would not have to worry about running into solid matter stars planets etc, you and your ship would pass right through them just like a nutrino.