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| Tags: falling, gravity, space |
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#1
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#2
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"Henry Haapalainen" wrote in message ... New ideas of space. http://www.wakkanet.fi/~fields/ Old ideas of space, with real data in support. http://www.androc1es.pwp.blueyonder....ctual_data.htm Androcles |
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#3
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Henry Haapalainen
New ideas of space. http://www.wakkanet.fi/~fields/ The site said: 'However, the transmission mechanism of gravity is continually being sought - almost certainly in vain' There is no transmission mechanism to seek - space-time curvature and gravity are one and the same. Typical crackpot rubbish of flawed logic based on misunderstood concepts. Thanks Bill |
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#4
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Bill Hobba wrote:
... - space-time curvature and gravity are one and the same. Forget the snipped rest, but this statement might be not correct. Space-time curvature is caused by both gravitation and electromagnetism. Ulrich |
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#5
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UEB wrote:
Forget the snipped rest, but this statement might be not correct. Space-time curvature is caused by both gravitation and electromagnetism. The Hilbert action is integral sqrt g R dv dt to which the source part is added. Variation of the Hilbert action gives sqrt g G var guv. Variation of the source part gives -sqrt g T var guv by the modern definition of T - the stress energy tensor. Thus G = T - the modern definition of the stress energy tensor guarantees it. Thus space-time curvature is 'caused' by the stress energy tensor which could be all sorts of things - EM fields, matter etc. What is not part of that source term in the lagrangian is gravity itself. Indeed from the modern definition of stress energy tensor -G is in fact the stress energy tensor of gravity itself - if it was a legit way of looking at it - which I doubt. Thanks Bill |
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#6
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"Bill Hobba" kirjoitti viestissä ... UEB wrote: Forget the snipped rest, but this statement might be not correct. Space-time curvature is caused by both gravitation and electromagnetism. The Hilbert action is integral sqrt g R dv dt to which the source part is added. Variation of the Hilbert action gives sqrt g G var guv. Variation of the source part gives -sqrt g T var guv by the modern definition of T - the stress energy tensor. Thus G = T - the modern definition of the stress energy tensor guarantees it. Thus space-time curvature is 'caused' by the stress energy tensor which could be all sorts of things - EM fields, matter etc. What is not part of that source term in the lagrangian is gravity itself. Indeed from the modern definition of stress energy tensor -G is in fact the stress energy tensor of gravity itself - if it was a legit way of looking at it - which I doubt. Thanks Bill Henry Haapalainen: Space-time curvature is a good abstraction of the truth. But it can not be the final answer. Falling space leads to same "geometry" of space, and there is a chance that it may be the truth. If there is some mistake, let's work together to find it. |
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#7
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Henry Haapalainen wrote: Space-time curvature is a good abstraction of the truth. But it can not be the final answer. Falling space leads to same "geometry" of space, and there is a chance that it may be the truth. If there is some mistake, let's work together to find it. I have read your link, and to be frank, you have no idea what your talking about - I seriously doubt you even understood what I wrote. Bill |
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#8
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Bill Hobba wrote:
UEB wrote: Forget the snipped rest, but this statement might be not correct. Space-time curvature is caused by both gravitation and electromagnetism. The Hilbert action is integral sqrt g R dv dt to which the source part is added. Variation of the Hilbert action gives sqrt g G var guv. Variation of the source part gives -sqrt g T var guv by the modern definition of T - the stress energy tensor. Thus G = T - the modern definition of the stress energy tensor guarantees it. Thus space-time curvature is 'caused' by the stress energy tensor which could be all sorts of things - EM fields, matter etc. What is not part of that source term in the lagrangian is gravity itself. Indeed from the modern definition of stress energy tensor -G is in fact the stress energy tensor of gravity itself - if it was a legit way of looking at it - which I doubt. That may be nice and good, but I have practically calculated with this stuff. All results demonstrate that gravitation & electromagnetism equally go into metrics, and do never mingle. In which, gravitation is _not_ part of the Ricci or Einstein tensor, and comes from the integration constants of R_{ij} = 0 . Ulrich |
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#9
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Henry Haapalainen wrote:
Space-time curvature is a good abstraction of the truth. But it can not be the final answer. Falling space leads to same "geometry" of space, and there is a chance that it may be the truth. If there is some mistake, let's work together to find it. Dear friend, the term "fall" has been defined for a body. Thus, a space does never fall *per definitionem* . Ulrich |
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#10
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"ueb" kirjoitti viestissä ... Henry Haapalainen wrote: Space-time curvature is a good abstraction of the truth. But it can not be the final answer. Falling space leads to same "geometry" of space, and there is a chance that it may be the truth. If there is some mistake, let's work together to find it. Dear friend, the term "fall" has been defined for a body. Thus, a space does never fall *per definitionem* . Ulrich HH: Sorry but do not understand what you are trying to say. I must be stupid. |
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