Sonke ngezinye izikhathi siba namaphupho amabi okubuyela emuva.
Bekungeke yini kusimangaze ukubuyela emuva ukuze ushintshe ukukhetha okubi noma ukhumbule umcimbi—leyo minyaka yobuntwana obungenandaba, ngobusuku owawina ngabo i-Oscar, noma ukusheshisa ukuya phambili ukuze ubone ukuthi izinto zizolunga kanjani esikhathini esizayo esikude?
Impicabadala yokuhamba kwesikhathi iyathakazelisa futhi iyajabulisa.
Ingabe uhambo lwesikhathi lungenzeka?
Singakwazi yini ukuthola indlela enqamulelayo eya esikhathini esizayo noma umnyango oya esikhathini esedlule?
Singagcina silawule isikhathi ngokwaso sisebenzisa izimiso zemvelo? Kwakuvame ukucatshangwa ukuthi ukuhamba isikhathi akuhambisani nesayensi.
Bengivele ngigweme ukuyixoxa ngisaba ukuvela njengohlanya.
Kodwa angiqapheli kangako kulezi zinsuku. Eqinisweni, ngifana nabakhi be-Stonehenge ngaphezulu.
Ukukhathazeka kwami ngesikhathi.
UMarilyn Monroe, ngesikhathi esakhula, noma uGalileo, ekhomba isibonakude sakhe ezinkanyezini, bekungaba indawo yami yokuqala uma ngingathola umshini wesikhathi.
Ngingahle ngihambe ngiye thola ukuthi ukulandisa kwethu konke kwe-cosmic kuphetha kanjani ekugcineni kwendawo yonke.
Ukuze siqonde ukuthi lokhu kungacatshangwa kanjani, sidinga ukubheka isikhathi njengoba kwenza izazi zefiziksi - endaweni yesine.
Akunzima njengoba kubonakala. Wonke umfundi oqaphile uyazi ukuthi yonke into esemhlabeni inobukhulu obuthathu, okuhlanganisa nami ngihlezi esihlalweni sami.
Yonke into inobukhulu obuthathu: ububanzi, ubude, nobude.
Nokho, kunolunye uhlobo lobude—ubude besikhathi.
Umuntu angaphila iminyaka engu-80, kodwa isimiso sonozungezilanga sizoqhubeka izigidigidi zeminyaka, futhi amatshe kaStonehenge abe khona izinkulungwane zeminyaka.
Into ngayinye inobude, kokubili ngesikhathi nasemkhathini. Ukuhamba ngalo mkhakha wesine kuhlanganisa ukuhamba unqamule isikhathi.
Ake sisondele kancane kuthiyori yakho konke manje.
Ithiyori Yakho Konke
Kusukela ngesikhathi sika Isaac Newton, siye saqonda ukuthi ubukhulu namandla adonsela phansi kuhlobene ngokuyinkimbinkimbi.
Isikhathi sakhe okusolakala ukuthi sokuhlangana saqalwa njengombono lapho, ngaphandle kokuluhlaza, i-apula liwela ekhanda lakhe ngesikhathi ejabulela itiye lantambama ngaphansi kwesihlahla sama-apula e-Woolsthorpe.
Lokhu kwenzeka kwaholela uNewton ekubeni acabange ukuthi ukunyakaza kwenyanga okuzungezayo nokuwela kwe-apula emhlabeni kungase kubangelwe amandla afanayo.
Uqhube ngokukhombisa ukuthi kuyiqiniso kubo bonke abantu nokuthi amandla adonsela phansi ahlanganisa yonke imizimba.
Kwashiwo emaphephandabeni angomagazini angaleso sikhathi ukuthi “Uthando luwumthetho wamandla adonsela phansi” nokuthi “simane siqhutshwa imizimba ukuze sidonswe omunye komunye amandla adonsela phansi kaNewton.”
U-Einstein ujoyina isigameko.
Ngethiyori yakhe evamile yokuhlobana, u-Einstein wathuthukela emkhakheni ngasekuqaleni kwekhulu lama-20 futhi wanikeza omunye futhi ukuqonda okuhlanganisayo ngokubonisa ukuthi ubukhulu namandla adonsela phansi kuhlobene kanjani nesikhathi.
Wazalelwa ku-1879, Einstein ubhale i- iphepha ngo-1905 lokho kungashintsha unomphela indlela esibuka ngayo umhlaba.
Indlela esibheka ngayo ukukhanya iguqulwa ngokuyisisekelo yilo msebenzi. Akekho owayenake ijubane lokukhanya kuze kube yileso sikhathi; kwakungokunye nje okungaguquguquki kwendawo yonke ukuthi izazi zefiziksi zokuhlola zazisebenzela ukulinganisa ngokunemba okwandayo njalo. Bekunokuncane ukuqonda kwemisindo yamagagasi okukhanya ehluke kakhulu namaza amanzi.
Kodwa ungabonisa ukuthi isikhathi sincipha kumuntu ohambayo ngokusebenzisa izibalo ozifunde esikoleni, ezaziwa ngokuthi i-theorem ka-Pythagoras, nangosizo oluncane oluvela kufomula yokwelula isikhathi ka-Einstein.
Ngokombono ka-Einstein, kufanele uhambe ngokushesha kakhulu uma ufuna ukunciphisa isikhathi—eqinisweni, uma ufuna ukuhamba isikhathi!
Cabanga ngokuthatha uhambo lokusuka eMhlabeni ngonyaka wezi-2000, ngokwesibonelo.
Uma uhamba manje kuze kube unyaka ka-2032, uzobe uhamba ngesivinini esingaba ngu-95% wejubane lokukhanya (cishe u-285,000 km ngomzuzwana).
Okuphawulekayo ukuthi ungaba mncane ngeminyaka engu-22 kunanoma ubani omshiye ngemuva, futhi iwashi lakho lisazothi ngu-2010 kanti empeleni u-2032 emhlabeni.
Lokho ukunwetshwa kwesikhathi, futhi kusebenza ngesivinini esiphansi futhi, kodwa ngokwezinga elincane kakhulu.
Manje, ukwakha umshini isikhathi.
Nokho, kukhona okubanjwayo: amakhilomitha angu-285,000 ngomzuzwana ayashesha ngempela.
Ngisho nomkhumbi-mkhathi oshesha kakhulu ungaphunyuka kuphela emkhathini woMhlaba ngesivinini esingama-10 km/s, kanti imoto yasemhlabeni eshesha kakhulu ayikwazanga ngisho nokufika ku-1 km/s.
Ngisho noma abantu bengakwazi ukuhamba ngalezi zivinini, kuyangabazeka ukuthi imizimba yethu ingakwazi ukumelana nalolu bunzima. Ukuhamba kwesikhathi ukuya esikhathini esizayo kuyacatshangelwa kodwa okwamanje kuyinselele kakhulu. Nokho, kuthiwani ngesikhathi esidlule?
Angazi ngawe, kodwa noma nini lapho ngifunda noma yini ngokuhamba kwesikhathi, ngihlale ngizizwa ngikhohlisiwe kancane.
Lonke lolu lwazi ngilunikezwe mina, kodwa akekho owake wachaza ukuthi kwakhiwa kanjani umshini wesikhathi.
Ngokubonga okuqotho ku USolwazi uFrank Tipler, umklamo wento enjalo unikezwe ngezansi ukuze ungakukhohlisi.
Ngo-1974, u-Tipler wabhala iphepha elichaza indlela yokwakha umshini wesikhathi obizwa ngokuthi i-Tipler Cylinder. Ungase ubuyele emuva ngesikhathi ngosizo lwalo mshini.
Ukuze uqale, uzodinga imali eningi ukuze uthenge isilinda esikhulu. Impela ngiqonde enkulu—mhlawumbe amakhilomitha ayikhulu ubude.
Isilinda kufanele sihlanganiswe ngokuqinile ndawonye futhi sibe nesisindo esilingana nelanga.
Ukuze uthole ukugeleza kwamaza amandla adonsela phansi aphuma kulesi sakhiwo, uzodinga ukuqala ukujikeleza ngokushesha kuze kube yilapho siphenduka ngokushesha kangangokuthi siqala ukulimaza indwangu yakho kokubili indawo nesikhathi.
Isexwayiso sezempilo siyadingeka futhi njengoba ukuba seduze kakhulu nesakhiwo esiwugqinsi kungaba yinkinga.
Sidonseleka ebusweni boMhlaba ngobuningi bawo, kodwa ukusondela kakhulu kunoma yini enkulu le kungaba yingozi enkulu ngoba ingakudonsela ngakuwo futhi ikuchoboze.
Kodwa-ke, uma ungakwazi ukweqa le nkinga yokushwibeka, sondela eduze kwesilinda esijikelezayo bese uqala ukulandelela ukujikeleza kwayo.
Njengoba wenza kanjalo, izinto eziyinqaba zizoqala ukwenzeka. Ngenxa yokuthi ukuhamba uzungeza isilinda ulibhekise kolunye uhlangothi lokuzungezisa kuzokubangela ukuthi uhlehle uhlehle ngesikhathi, umzila wakho, ovame ukukuholela ngendlela engenakuhlukaniswa phakathi nesikhathi, uyashintsha.
Umshini udala isikhathi sokubuyela emuva; ngenxa yalokho, lapho ubuyela emuva ngesikhathi uhamba, ulandela isikhathi eside ukujikeleza komshini.
Mane usuke ku-cylinder ubuyele eMhlabeni ukuze ubuyisele ukunyakaza okuvamile, futhi uzozithola usubuyile esikhathini samanje, nakuba lokho kwenzeka esikhathini esidlule.
Isiphetho
Ukuhamba kwesikhathi kuyisenzakalo sangempela, yebo.
Kodwa ihluka kancane kulokho oke wakubona ngokungangabazeki kumamuvi. Kungenzeka ukuzwa isikhathi sidlula ngenani elingaphandle komzuzwana owodwa ngomzuzwana ngaphansi kwezimo ezithile.
Kumelwe siqonde lolu hlobo lohambo lwesikhathi olwenzeka emhlabeni wangempela ngenxa yezinto ezimbalwa ezibalulekile.
shiya impendulo