HangangaPūtaiao

Hakoko o te marama - te hītori o te ariā tinana

Whakaatanga me te tīhoihoi o te marama e pā ana ki te maha o tītohu tinana, tuwhera rite ki te hua o te mātakitaki tika, kahore whakahaere ngā taiwhanga. Hoki te wā tuatahi e korero tatou e pā ana ki reira i roto i Greece onamata, engari e hehema ki te whakaaro i mohiotia tenei meka i mua te nuinga o physicists. Just ki te pūtaiao tuatahi tamata ki te hoatu i te whakamārama arorau mo te maha o empirically whakapumautia meka ka Cleomedes, e noho i roto i te rau tau AD ahau i roto i te mea he inaianei Kariki. I mua ia, whakaahuatia Euclid tenei āhuatanga mā te mātakitaki i te mowhiti e takoto ana i runga i te raro o te ipu, i te mea i te tetahi koki kihai i reira kitea ki te kaimātakitaki, engari ki te tīmata koe ringihia te wai ki te oko, ka i muri i etahi wa, kahore te huri i te koki o te tirohanga o taea e kite e takoto ana i runga i te raro o te whakapaipai te taata. Engari kia rite ki te whakamārama taipitopito o tenei wheako Euclid tonu kihai i hoatu e te pūtaiao tuatahi ki te ako i roto i te taipitopito whakaaro te ata tāhapa ko Cleomedes.

Ko te kaupapa o tona ako ko ata tāhapa i roto i te wai - kua tuhia reira e ki te toua te rakau roa i roto i te wai kia te tetahi wahi noho i runga i te mata, i reira he he ata tāhapa ataata i te atanga o te rangi, me te wai. Otiia i roto i te meka, tonu tonu te rakau, i konei te take mo tenei pānga whatu i roto i te haavareraa ataata?

Wherawhera i tēnei āhuatanga tata atu tuhia Cleomedes e ki te tomo i te kurupae marama i te reo iti mātotoru ki te atu mātotoru, i te he te aronga matahao (e ko, he he whanaunga koki ki nga rohe o nga pāpāho e rua), he he kiato nui te reo, e faatioi reira ki te anake aronga.

Ko reira he ata tāhapa rite faataa taea ki te kite i te ra mo etahi wa, i te toenetanga ia.

hoatu Cleomedes anake te āhuatanga tino whānui o te hakoko o te marama, ka whakaahuatia anake i roto i te puka o etahi ngā tahito, hoatu, Heoi, he pikitia tika oti o nga ture whānui o tenei tukanga. I muri mai i tetahi atu aivanaa Kariki, e noho ana i te rau tau i muri mai Cleomedes, tonu rangahau pūtaiao, timata i tona mua, a tata haere mai tata ki te hurahura i nga ture o te ahupūngao, e refracts te kurupae marama.

He maha feunga nui o ngā, Klavdiy Ptolemey taea ki te whakatū i te koki āwhiwhiwhi i ai refracted te marama i roto i te taiao ngā. Ko te kupu, mo te ata tāhapa e puta ana i te whakawhitinga o te hohonu kurupae i roto i te karaihe wai, te koki hakoko ko 0,88 te koki o te pā. Hoki atu fluids, kua puta ke tenei uara - mō te rangi me te wai, he mea rite ki te 0,76, me rangi me te karaihe 0,67.

Ko te whakatūnga tonu o ture, e rere te ata tāhapa o te marama, ka mau atu i te torutoru rau tau. pēnei Neke atu i te kotahi whakatupuranga o pūtaiao mahi i roto i te whakapai ake o ngā mōhiotanga, me te putanga whakamutunga o te tātai hakoko te ki René Descartes, te rongonui French ahupūngao-taiao.

I roto i te putanga taketake o tātai te kaipūtaiao Tatimana W. Snell o mo te tātai i te koki o te titiro pā e whai ake:

n = hara (he) / hara (b).

I roto i te mau parau te tahi atu, te taupū hakoko o te kurupae marama mō te rua pāpāho motuhake he natula tamau me te taui ore, me ko te ōwehenga o te aho o te koki o te pā ki te aho o te koki hakoko.

I te pae hopea oti te ako me te whakaahuatanga o te ata tāhapa o te kurupae marama, ka patua i tetahi reo ki tetahi, kua rite kua mea, Rene Dekart. faaau ia reira Koinei tika faaite te mauri o te tukanga hakoko marama, te whakatairite i te reira ki te pōro e rere i roto i te rangi. Ki te he te reira i roto i farerei tona rere he kiko, tino marama, me te kikokore, kia ngāwari ki te wahi i reira, ka haere tonu ki te neke, ngaro ia tika etahi o ona tere taketake, a paku huri te koki o te rere.

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