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Why do people say travelling faster than the speed of light is impossible ? |
People will say 'Einstein said we couldnt so we cant', but people said long ago we couldnt travel faster than the speed of sound - wrong. It was said long long ago that if we travelled more than 5 miles per hour our insides would be crushed (the actual speed of this one ive forgotten but it was very low, to do with bicycles or cars being invented). They said the Earth was flat, man couldnt fly etc... I think the only reason Einstein would say its impossible and come up with such an elaborate reason was to make people challenge him and say ' I dont belive it, we can travel faster, we just have to learn how to'. My controversial part - Of course there are always people who accept the easist answer or the one that will keep them in the 'popular' group for fear of ridicule,eg. company men who go along with whatever they are told because they are too afraid to stand up for better ideas or ways. I may seem a bit dim, be way off and not read 1/3 of what you've written but on 1st glance i'd have said impossible simply means we (mankind) have not yet realized a way in which it is possible. Managing it "theoretically" is a whole different ballgame isn't it? To say it is possible would mean that there exists somewhere - RIGHT NOW - a vehicle of some kind that one could get into and accelerate to a speed which is faster than that of light. Well; there isn't!! Not yet!!! And that, i believe, is why people say that travelling faster than the speed of light is impossible (because now as things stand it IS) Because it is still impossible to create something that can push an object (like a spaceship) that fast. Even if we could create a laser-driven craft that could be run in a vacuum, it would take years to accellerate to the speed of light. We will have to discover an entirely new division of physics to approach this task. And unfortunately, the odds are not good in discovering such breakthroughs. The age of physical enlightenment is in the past... now we are just perfecting the knowledge we have. expression of saying it's a metaphor It has to do with mass increasing with velocity. I don't understand this much myself but apparently you can't expend the last whatever of energy needed to go FTL. Physics-not just a good idea, it's the law. Speed of light is nothing, you should try traveling at the speed of thought. The problem with the speed of light is that our universe is defined by this speed. Einstien's equations predict that as an object approachess the speed of light it will shrink and it will become heavier. If something were to actually reach the speed of light, it would be infinetely small and infinitely heavy. However, something that is infineitely small and heavy would have infinite gravity and, thus, destroy the universe (which some people would consider undesireable). Not to mention that the heavier an object is, the more energy it will take to accelerate it. So, as you get closer to the speed of light, you would need infinite energy to accelerate the tiniest bit faster. Interestingly, the equations allow for the concept of a particle which is born traveling faster than light which could then never travel slower than the speed of light. This theoretical particle was of some interst but, eventually, proven to be impossible to exist. I'm sure you'll continue to believe that the limits of the speed of light are wrong, but that's because you are more interested in fantasy than you are in science. If you really were interested in the science of your question, you would take a Modern Physics class at your local university. |
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