Umbuzo wokuba kukho umatshini wexesha, unomdla omkhulu. Impendulo yalo mbuzo ixhomekeke kwizinto ezithetha ngamazwi "umatshini wexesha" kwaye "ukhona."
Kwaye, ekhona, ikhona kwaye iya kuba khona-oko kunjalo, inyaniso, into efanayo, ukuba umatshini wexesha ukhona ngokwenene. Emva koko, ixesha liya kuba li-nonlinear. Ezi ngcamango zikhona. Ngokomzekelo, uSeth Lloyd wakwazi ukulungisa ijika elivaliweyo ngendlela yokuba isikhundla se-photon kuso asidluliswanga kwithuba, kodwa ngexesha. Kwaye oku kuthetha ukuba, ubuncinane, ulwazi "umatshini wexesha" lukhona.
Wathini uEinstein?
Yena, njengokuba uyayazi, udale i- theory of relativity . Ngokwale ngqungquthela, kubonakala ukuba umbuzo wokuba kukho umatshini wexesha kufuneka ugqitywe ukuba uqiniseke ukuba unokuba khona ebomini bokwenene, kwaye kungekhona kwiveli yomthombo we-Wells.
Kwaye u-Einstein wayeqwalasela ixesha kungekhona into ecinga, kodwa njengento yesine yendawo. Ukubeka nje, oku kuthetha ukuba kukho "isivinini sesine-dimension" sento, kwaye into engenzi nto (ekuphumleni), ilingana nesantya sokukhanya. Kodwa ukuba into iyahamba, isantya sobunzima bayo (ezintathu-dimensional and four-dimensional) sisalingana nesantya sokukhanya, oko kuthetha ukuba ngokukhawuleza into iyahamba kwindawo, ihamba kancane ihamba ngexesha. Yaye ukuba i-speed-dimensional velocity isondela kwijubane lokukhanya, ngoko ijubane ngexesha liza kufikelela kwi-zero. Le yiphumo elidumileyo lokuphucula ixesha, abalobi bezesayensi abathanda ukuthetha ngazo. Ewe, malunga nendlela i-cosmonauts eyabuya ngayo ukusuka kwindiza ayifumananga ubuso obuqhelekileyo: babo ontanga babesele bafa ngokuguga . Ngaba akusixesha lomshini?
"Izibonda" kunye "nezibungu"
Kwaye u-Einstein wafumanisa ukuba ixesha lixhomekeke kwisantya: eduze kwemizimba eninzi ihamba ngokukhawuleza. Ngako oko, ngandlela-thile iphosakele indawo, njengokuba ugunyaziwe, ungenza "imingxuma" kuyo. Emva koko, phantsi kweemeko ezithile, kuya kubakho ukuphula ulwalamano lwe-causal kwaye uphume "kwindawo" ngaphambi kokuya khona. Kwaye oku kunzulu. Lapha kuphela uEinstein
Enye inzame yokuqonda ukuba kukho umatshini wexesha, udibene nemigodi emnyama kunye neengqungquthela okanye inyaniso, ayikwacaci ngokupheleleyo. Kwimeko nayiphi na into, kukholelwa ukuba iindawo ezinkulu, ezifa, zixinzezelwe. Kodwa loo nto ayihambeli ndawo, kodwa iyajika ibe yinto encinci, kodwa inzima efanayo. Oko kukuthi, ubukhulu bezinto ezinjalo bukhulu kakhulu. Kucacile, kwindawo ethile apha kwaye kufuneka ibe yindawo eboshiweyo, ikhuphe ixesha lokuqhafaza ixesha, kodwa oku akunakwenzeka. Akusinakwenzeka ukusebenzisa "umatshini wexesha" olunjalo: ngaphambi kokufikelela emngxeni omnyama, umntu uya kutshabalalisa ngaphantsi kwefuthe lobuncwane obunamandla kwiimodyuli.