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#1
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Roger (K8RI) wrote:
A look, yes, but you can't violate the rules of physics. A couple of centuries ago, one of those "rules of physics" was that light always travels in a straight line. Do you think that "rule of physics" has been violated? :-) -- 73, Cecil http://www.w5dxp.com |
#2
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Cecil Moore wrote:
Roger (K8RI) wrote: A look, yes, but you can't violate the rules of physics. A couple of centuries ago, one of those "rules of physics" was that light always travels in a straight line. Do you think that "rule of physics" has been violated? :-) No violation Cecil, space bends, not light. tom K0TAR |
#3
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Tom Ring wrote:
No violation Cecil, space bends, not light. Is a straight line through bent space still a straight line? :-) -- 73, Cecil http://www.w5dxp.com |
#4
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Cecil Moore wrote:
Tom Ring wrote: No violation Cecil, space bends, not light. Is a straight line through bent space still a straight line? :-) Hey, wait a minute, is that a straight answer? grin Regards, JS |
#5
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![]() "Cecil Moore" wrote in message t... Tom Ring wrote: No violation Cecil, space bends, not light. Is a straight line through bent space still a straight line? :-) -- 73, Cecil http://www.w5dxp.com Cecil It was Richard Feynman who 'proved' that light always travels by the most direct route (i.e. a straight line) between two objects. In doing that, he also managed to 'prove' that light took every other possible route too and by mutual interference between all the possible paths, arrived at the shortest route. Light travels by the most direct route even through curved space. Our perception that the light has been bent is apparently due to deficiencies in the way we see the universe. At least that's what I think the theory says. His proof is ingenious and somewhat counter intuitive. As he won a Nobel prize for this sort of stuff, I'm not inclined to argue. Mike G0ULI |
#6
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Mike Kaliski wrote:
It was Richard Feynman who 'proved' that light always travels by the most direct route (i.e. a straight line) between two objects. The famous relativity experiment that allowed men to "see" a star "hidden" by the sun is a good example. My point was that man's imperfect "laws of physics" are often violated and have to be revised or discarded in favor of a new set of laws of physics. If the scientific progress over the next 1000 years equals that of the last 1000 years, most of what we think we know now will no doubt be revised or proved incorrect and discarded. For instance: The laws of physics based on non-empty space (ether) were discarded only to be revived in different form by the discovery that empty space is far from empty. -- 73, Cecil http://www.w5dxp.com |
#7
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![]() "Cecil Moore" wrote in message t... Mike Kaliski wrote: It was Richard Feynman who 'proved' that light always travels by the most direct route (i.e. a straight line) between two objects. The famous relativity experiment that allowed men to "see" a star "hidden" by the sun is a good example. My point was that man's imperfect "laws of physics" are often violated and have to be revised or discarded in favor of a new set of laws of physics. If the scientific progress over the next 1000 years equals that of the last 1000 years, most of what we think we know now will no doubt be revised or proved incorrect and discarded. For instance: The laws of physics based on non-empty space (ether) were discarded only to be revived in different form by the discovery that empty space is far from empty. -- 73, Cecil http://www.w5dxp.com Indeed Cecil, Even as a youngster, I was never happy with the concept of space vacuum being completely devoid of anything. I first started studying radio and electronics because I couldn't see how signals could propagate through absolute nothingness. With the benefit of age and experience, I can accept the concept that electromagnetic radiation is self sustaining, oscillating between magnetic and electric field incarnations and complete in itself. But there was always that nagging doubt that this was not the whole picture. I don't really expect most of our current laws of physics will be overturned in the next 1000 years. I think new phenomena that exist outside of our normal everyday experience will be discovered and whole new areas of research will open up operating in parallel to our current understanding. Current quantum research seems to suggest that we are all ultimately made up of a series of coherent waves, with no solidity whatsoever. It's just a kind of electrostatic repulsion that stops us falling through the floor. Whatever the truth of the matter, it has very little impact on our daily lives and it still hurts like hell when I stub my toe on the table leg. Cheers Mike G0ULI |
#8
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Cecil Moore wrote:
Mike Kaliski wrote: It was Richard Feynman who 'proved' that light always travels by the most direct route (i.e. a straight line) between two objects. The famous relativity experiment that allowed men to "see" a star "hidden" by the sun is a good example. My point was that man's imperfect "laws of physics" are often violated and have to be revised or discarded in favor of a new set of laws of physics. If the scientific progress over the next 1000 years equals that of the last 1000 years, most of what we think we know now will no doubt be revised or proved incorrect and discarded. Except that isn't true. Any new physics must encompass and explain everything already proven. As a simplistic example, relativistic physics doesn't make Newtonian physics "wrong", discard it or revise it, Newton just becomes a subset, a special case where if velocity is much, much smaller than c, the effects of velocity can be ignored. If some new discovery allows for travel faster than c, relativistic physics as we now know it becomes a special case for velocity less than c as it is already experimentally validated and must become a subset of the new physics. -- Jim Pennino Remove .spam.sux to reply. |
#9
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#10
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![]() "Cecil Moore" wrote in message t... Mike Kaliski wrote: It was Richard Feynman who 'proved' that light always travels by the most direct route (i.e. a straight line) between two objects. The famous relativity experiment that allowed men to "see" a star "hidden" by the sun is a good example. My point was that man's imperfect "laws of physics" are often violated and have to be revised or discarded in favor of a new set of laws of physics. If the scientific progress over the next 1000 years equals that of the last 1000 years, most of what we think we know now will no doubt be revised or proved incorrect and discarded. For instance: The laws of physics based on non-empty space (ether) were discarded only to be revived in different form by the discovery that empty space is far from empty. -- 73, Cecil http://www.w5dxp.com the problem isnt with believing space can be empty but believing that space is nothing.. |
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