澳门新葡亰手游下载
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  avel Survive a a Theory off Everything 时间旅行在万有理论下可Tom Siegfri姆·西格弗里德In manny universes, ts, typically ththose on TV s shows or in m movies, travel is nouch more difficult than driving downtownown in any majo major city duing rush hour..In real life, ife, time travel isn't o easy. In fact fact, it's probably impossisible, a fany more farfetchched than vissiting Alis Wonderland, finding got the end  rainbow or cr cleansinall the hate sp speech off Facebook.Yet t time traveldoes not nessarily vioate the la physics. instein's theotheory of gty — generaelativity — space and time ae merged ascetime, whih allows for the possibilitity of pathys that could end back to th past and lop back to theuture. Such pths are knos closed timelike curves.Nobody thinks ts that general relativity time loops wuld be practicaical for tim travel even ifn if they are pe possible.or one thing,, they might xist only undunder certain in circumstantances — the u universe would have to be e rotating,and not expanding — as themathematicianan Kurt G delshowed in he 1940s. Buut the univers is expandg, and probabbably isn't tating, so thathat dampens the prospects for revisiting te Stone Age e or acquiringing a pet diinosaur.Besdes, even if such pathwaid exist, buililding a s to traverse thhem would costt more than all the DeLorereans (and other trannsportation vehicles) ) ever mad would need acruising sp of 140,000 miles per sec. And with no lace to stop fp for gas (or wor whatever) the fuel tanank would have to be morethan a trillio times the si size of ann oil tanker.r.So for prctical purposesposes, timee travel's time time has nt yet arried. But even  if it's possiible only in pn principlthe potentiramificatioons for the bas basic phys of the unive might make it worth thee time to invevestigate itit.A first sep would be to to attempt  figure out exexactly whate relevant law of physics eally are. Einsstein's generl relativity is great, butindubitably not the last wrd about thehe physicsf the universrse. After all all, it coexists unily with quanum mechanics, s, which rulesules the subatomic worldld and presumly, since eything is mde of subatom stuff, the ree rest of the universe a well. Wheter the quantum–ntum–general relativity com truly perms time travelight depend onn what the ultitimate correct ct theory cining the two t turns out to be.Several ccandidate ories have bee been develped for merging generaal relativity and quantum mmechanics ina unified try. It's ann question whethether thesndidates wuld allow time time travel inn something like the wa general reltivity does, phhilosopher Christian Wrich of thUniversity of of Genevaotes in a new w paper.Itpossible, he sahe says, that a theory thupersedes gral relatimight still in n some way lude the equiquivalent of general relatity's timelike like loops.Even ven if time loops existthe fundament theory, thoughough, thee's still no gu guarantee thatthat they wouould be pred in the gent large-scalle spacetihat would be rbe relevant in real lifeor that matter,ter, Wüthri points out, pr, predictig the exis of time travl loops might ght be taken s evidence agaagainst thheory, consiering the serrious likellihood that e travel reallyeally isn't possible atl.In any casse, investgating whetquantum graviy theories retain generaelativity's ti time travelel loopholen illuminat many tougestions thatat must be ansnswered to devdevelop a sucssful theory and understand how it relaes to generrelativity. “Foor this reaso alone,” Wich writes, he question n of time ttravel beyondond general elativity isorth our whilee.”在许多宇宙,通常视剧中的宇宙,时间旅行比高峰时段在任何一个大的闹市区开车困难多少。

  avel Survive a a Theory off Everything 时间旅行在万有理论下可Tom Siegfri姆·西格弗里德In manny universes, ts, typically ththose on TV s shows or in m movies, travel is nouch more difficult than driving downtownown in any majo major city duing rush hour..In real life, ife, time travel isn't o easy. In fact fact, it's probably impossisible, a fany more farfetchched than vissiting Alis Wonderland, finding got the end  rainbow or cr cleansinall the hate sp speech off Facebook.Yet t time traveldoes not nessarily vioate the la physics. instein's theotheory of gty — generaelativity — space and time ae merged ascetime, whih allows for the possibilitity of pathys that could end back to th past and lop back to theuture. Such pths are knos closed timelike curves.Nobody thinks ts that general relativity time loops wuld be practicaical for tim travel even ifn if they are pe possible.or one thing,, they might xist only undunder certain in circumstantances — the u universe would have to be e rotating,and not expanding — as themathematicianan Kurt G delshowed in he 1940s. Buut the univers is expandg, and probabbably isn't tating, so thathat dampens the prospects for revisiting te Stone Age e or acquiringing a pet diinosaur.Besdes, even if such pathwaid exist, buililding a s to traverse thhem would costt more than all the DeLorereans (and other trannsportation vehicles) ) ever mad would need acruising sp of 140,000 miles per sec. And with no lace to stop fp for gas (or wor whatever) the fuel tanank would have to be morethan a trillio times the si size of ann oil tanker.r.So for prctical purposesposes, timee travel's time time has nt yet arried. But even  if it's possiible only in pn principlthe potentiramificatioons for the bas basic phys of the unive might make it worth thee time to invevestigate itit.A first sep would be to to attempt  figure out exexactly whate relevant law of physics eally are. Einsstein's generl relativity is great, butindubitably not the last wrd about thehe physicsf the universrse. After all all, it coexists unily with quanum mechanics, s, which rulesules the subatomic worldld and presumly, since eything is mde of subatom stuff, the ree rest of the universe a well. Wheter the quantum–ntum–general relativity com truly perms time travelight depend onn what the ultitimate correct ct theory cining the two t turns out to be.Several ccandidate ories have bee been develped for merging generaal relativity and quantum mmechanics ina unified try. It's ann question whethether thesndidates wuld allow time time travel inn something like the wa general reltivity does, phhilosopher Christian Wrich of thUniversity of of Genevaotes in a new w paper.Itpossible, he sahe says, that a theory thupersedes gral relatimight still in n some way lude the equiquivalent of general relatity's timelike like loops.Even ven if time loops existthe fundament theory, thoughough, thee's still no gu guarantee thatthat they wouould be pred in the gent large-scalle spacetihat would be rbe relevant in real lifeor that matter,ter, Wüthri points out, pr, predictig the exis of time travl loops might ght be taken s evidence agaagainst thheory, consiering the serrious likellihood that e travel reallyeally isn't possible atl.In any casse, investgating whetquantum graviy theories retain generaelativity's ti time travelel loopholen illuminat many tougestions thatat must be ansnswered to devdevelop a sucssful theory and understand how it relaes to generrelativity. “Foor this reaso alone,” Wich writes, he question n of time ttravel beyondond general elativity isorth our whilee.”在许多宇宙,通常视剧中的宇宙,时间旅行比高峰时段在任何一个大的闹市区开车困难多少。澳门新葡亰手游下载

  澳门新葡亰手游下载avel Survive a a Theory off Everything 时间旅行在万有理论下可Tom Siegfri姆·西格弗里德In manny universes, ts, typically ththose on TV s shows or in m movies, travel is nouch more difficult than driving downtownown in any majo major city duing rush hour..In real life, ife, time travel isn't o easy. In fact fact, it's probably impossisible, a fany more farfetchched than vissiting Alis Wonderland, finding got the end  rainbow or cr cleansinall the hate sp speech off Facebook.Yet t time traveldoes not nessarily vioate the la physics. instein's theotheory of gty — generaelativity — space and time ae merged ascetime, whih allows for the possibilitity of pathys that could end back to th past and lop back to theuture. Such pths are knos closed timelike curves.Nobody thinks ts that general relativity time loops wuld be practicaical for tim travel even ifn if they are pe possible.or one thing,, they might xist only undunder certain in circumstantances — the u universe would have to be e rotating,and not expanding — as themathematicianan Kurt G delshowed in he 1940s. Buut the univers is expandg, and probabbably isn't tating, so thathat dampens the prospects for revisiting te Stone Age e or acquiringing a pet diinosaur.Besdes, even if such pathwaid exist, buililding a s to traverse thhem would costt more than all the DeLorereans (and other trannsportation vehicles) ) ever mad would need acruising sp of 140,000 miles per sec. And with no lace to stop fp for gas (or wor whatever) the fuel tanank would have to be morethan a trillio times the si size of ann oil tanker.r.So for prctical purposesposes, timee travel's time time has nt yet arried. But even  if it's possiible only in pn principlthe potentiramificatioons for the bas basic phys of the unive might make it worth thee time to invevestigate itit.A first sep would be to to attempt  figure out exexactly whate relevant law of physics eally are. Einsstein's generl relativity is great, butindubitably not the last wrd about thehe physicsf the universrse. After all all, it coexists unily with quanum mechanics, s, which rulesules the subatomic worldld and presumly, since eything is mde of subatom stuff, the ree rest of the universe a well. Wheter the quantum–ntum–general relativity com truly perms time travelight depend onn what the ultitimate correct ct theory cining the two t turns out to be.Several ccandidate ories have bee been develped for merging generaal relativity and quantum mmechanics ina unified try. It's ann question whethether thesndidates wuld allow time time travel inn something like the wa general reltivity does, phhilosopher Christian Wrich of thUniversity of of Genevaotes in a new w paper.Itpossible, he sahe says, that a theory thupersedes gral relatimight still in n some way lude the equiquivalent of general relatity's timelike like loops.Even ven if time loops existthe fundament theory, thoughough, thee's still no gu guarantee thatthat they wouould be pred in the gent large-scalle spacetihat would be rbe relevant in real lifeor that matter,ter, Wüthri points out, pr, predictig the exis of time travl loops might ght be taken s evidence agaagainst thheory, consiering the serrious likellihood that e travel reallyeally isn't possible atl.In any casse, investgating whetquantum graviy theories retain generaelativity's ti time travelel loopholen illuminat many tougestions thatat must be ansnswered to devdevelop a sucssful theory and understand how it relaes to generrelativity. “Foor this reaso alone,” Wich writes, he question n of time ttravel beyondond general elativity isorth our whilee.”在许多宇宙,通常视剧中的宇宙,时间旅行比高峰时段在任何一个大的闹市区开车困难多少。

  avel Survive a a Theory off Everything 时间旅行在万有理论下可Tom Siegfri姆·西格弗里德In manny universes, ts, typically ththose on TV s shows or in m movies, travel is nouch more difficult than driving downtownown in any majo major city duing rush hour..In real life, ife, time travel isn't o easy. In fact fact, it's probably impossisible, a fany more farfetchched than vissiting Alis Wonderland, finding got the end  rainbow or cr cleansinall the hate sp speech off Facebook.Yet t time traveldoes not nessarily vioate the la physics. instein's theotheory of gty — generaelativity — space and time ae merged ascetime, whih allows for the possibilitity of pathys that could end back to th past and lop back to theuture. Such pths are knos closed timelike curves.Nobody thinks ts that general relativity time loops wuld be practicaical for tim travel even ifn if they are pe possible.or one thing,, they might xist only undunder certain in circumstantances — the u universe would have to be e rotating,and not expanding — as themathematicianan Kurt G delshowed in he 1940s. Buut the univers is expandg, and probabbably isn't tating, so thathat dampens the prospects for revisiting te Stone Age e or acquiringing a pet diinosaur.Besdes, even if such pathwaid exist, buililding a s to traverse thhem would costt more than all the DeLorereans (and other trannsportation vehicles) ) ever mad would need acruising sp of 140,000 miles per sec. And with no lace to stop fp for gas (or wor whatever) the fuel tanank would have to be morethan a trillio times the si size of ann oil tanker.r.So for prctical purposesposes, timee travel's time time has nt yet arried. But even  if it's possiible only in pn principlthe potentiramificatioons for the bas basic phys of the unive might make it worth thee time to invevestigate itit.A first sep would be to to attempt  figure out exexactly whate relevant law of physics eally are. Einsstein's generl relativity is great, butindubitably not the last wrd about thehe physicsf the universrse. After all all, it coexists unily with quanum mechanics, s, which rulesules the subatomic worldld and presumly, since eything is mde of subatom stuff, the ree rest of the universe a well. Wheter the quantum–ntum–general relativity com truly perms time travelight depend onn what the ultitimate correct ct theory cining the two t turns out to be.Several ccandidate ories have bee been develped for merging generaal relativity and quantum mmechanics ina unified try. It's ann question whethether thesndidates wuld allow time time travel inn something like the wa general reltivity does, phhilosopher Christian Wrich of thUniversity of of Genevaotes in a new w paper.Itpossible, he sahe says, that a theory thupersedes gral relatimight still in n some way lude the equiquivalent of general relatity's timelike like loops.Even ven if time loops existthe fundament theory, thoughough, thee's still no gu guarantee thatthat they wouould be pred in the gent large-scalle spacetihat would be rbe relevant in real lifeor that matter,ter, Wüthri points out, pr, predictig the exis of time travl loops might ght be taken s evidence agaagainst thheory, consiering the serrious likellihood that e travel reallyeally isn't possible atl.In any casse, investgating whetquantum graviy theories retain generaelativity's ti time travelel loopholen illuminat many tougestions thatat must be ansnswered to devdevelop a sucssful theory and understand how it relaes to generrelativity. “Foor this reaso alone,” Wich writes, he question n of time ttravel beyondond general elativity isorth our whilee.”在许多宇宙,通常视剧中的宇宙,时间旅行比高峰时段在任何一个大的闹市区开车困难多少。

 澳门新葡亰手游下载 avel Survive a a Theory off Everything 时间旅行在万有理论下可Tom Siegfri姆·西格弗里德In manny universes, ts, typically ththose on TV s shows or in m movies, travel is nouch more difficult than driving downtownown in any majo major city duing rush hour..In real life, ife, time travel isn't o easy. In fact fact, it's probably impossisible, a fany more farfetchched than vissiting Alis Wonderland, finding got the end  rainbow or cr cleansinall the hate sp speech off Facebook.Yet t time traveldoes not nessarily vioate the la physics. instein's theotheory of gty — generaelativity — space and time ae merged ascetime, whih allows for the possibilitity of pathys that could end back to th past and lop back to theuture. Such pths are knos closed timelike curves.Nobody thinks ts that general relativity time loops wuld be practicaical for tim travel even ifn if they are pe possible.or one thing,, they might xist only undunder certain in circumstantances — the u universe would have to be e rotating,and not expanding — as themathematicianan Kurt G delshowed in he 1940s. Buut the univers is expandg, and probabbably isn't tating, so thathat dampens the prospects for revisiting te Stone Age e or acquiringing a pet diinosaur.Besdes, even if such pathwaid exist, buililding a s to traverse thhem would costt more than all the DeLorereans (and other trannsportation vehicles) ) ever mad would need acruising sp of 140,000 miles per sec. And with no lace to stop fp for gas (or wor whatever) the fuel tanank would have to be morethan a trillio times the si size of ann oil tanker.r.So for prctical purposesposes, timee travel's time time has nt yet arried. But even  if it's possiible only in pn principlthe potentiramificatioons for the bas basic phys of the unive might make it worth thee time to invevestigate itit.A first sep would be to to attempt  figure out exexactly whate relevant law of physics eally are. Einsstein's generl relativity is great, butindubitably not the last wrd about thehe physicsf the universrse. After all all, it coexists unily with quanum mechanics, s, which rulesules the subatomic worldld and presumly, since eything is mde of subatom stuff, the ree rest of the universe a well. Wheter the quantum–ntum–general relativity com truly perms time travelight depend onn what the ultitimate correct ct theory cining the two t turns out to be.Several ccandidate ories have bee been develped for merging generaal relativity and quantum mmechanics ina unified try. It's ann question whethether thesndidates wuld allow time time travel inn something like the wa general reltivity does, phhilosopher Christian Wrich of thUniversity of of Genevaotes in a new w paper.Itpossible, he sahe says, that a theory thupersedes gral relatimight still in n some way lude the equiquivalent of general relatity's timelike like loops.Even ven if time loops existthe fundament theory, thoughough, thee's still no gu guarantee thatthat they wouould be pred in the gent large-scalle spacetihat would be rbe relevant in real lifeor that matter,ter, Wüthri points out, pr, predictig the exis of time travl loops might ght be taken s evidence agaagainst thheory, consiering the serrious likellihood that e travel reallyeally isn't possible atl.In any casse, investgating whetquantum graviy theories retain generaelativity's ti time travelel loopholen illuminat many tougestions thatat must be ansnswered to devdevelop a sucssful theory and understand how it relaes to generrelativity. “Foor this reaso alone,” Wich writes, he question n of time ttravel beyondond general elativity isorth our whilee.”在许多宇宙,通常视剧中的宇宙,时间旅行比高峰时段在任何一个大的闹市区开车困难多少。



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