Nā hāʻawi a Isaac Newton

Mea Kākau: Peter Berry
Lā O Ka Hana: 20 Iulai 2021
HōʻAno Hou I Ka Lā: 13 Mei 2024
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Isaac Newton (1642-1727) he physicist Pelekane, makemakika, astronomer nāna i hāʻawi i nā hāʻawi ʻepekema nui. Ua manaʻo ʻia ʻo ia kekahi o nā mea akamai i ka mōʻaukala honua.

Ua ʻoi aku ʻo Newton i ka mahele o ka physics, makemakika, optics, a me ka astronomy. Ua loli kāna mau mea i loaʻa i ke ala o ka ʻike a hoʻomaopopo i ke ao holoʻokoʻa. Ma waena o kāna ʻike nui ʻia: nā kānāwai o ka neʻe, ke kānāwai o ka gravitation ākea a me ke kumumanaʻo o ke kala.

ʻO Newton kahi ʻāpana o ke kipi ʻepekema i hoʻomaka i ka Renaissance me nā noiʻi a me nā ʻike a ka mea kilokilo ʻo Nicolás Copernicus. Ua hoʻomau kēia i ka ulu ʻana me nā hāʻawi a Johannes Kepler, Galileo Galilei; a laila me Isaac Newton. I ke kenekulia 20, ua lawe ʻo Albert Einstein i kāna mau kumumanaʻo e hoʻomohala i nā mea hou i loaʻa.

  • Hiki iā ia ke kōkua iā ʻoe: Nā kipi ʻepekema
  1. Nā kānāwai o Newton no ke noi

Na Isaac Newton nā kānāwai o ke noi i hana ʻia i kāna hana: Philosophiæ naturalis principia mathematica (1687). Ua hoʻokumu kēia mau kānāwai i nā kumu no ka ʻike revolusione o ka mekanika kahiko, ka lālā o ka physics e aʻo ana i ka hana a nā kino i ka hoʻomaha a i ʻole ka neʻe ʻana i nā wikiwiki haʻahaʻa (hoʻohālikelike ʻia i ka wikiwiki o ke kukui).


Hōʻike nā kānāwai i ke ʻano o ka ʻoni ʻana o ke kino i nā kānāwai nui ʻekolu.

  • Kānāwai mua: Kānāwai o ka inersia. Noho kēlā me kēia kino i kona mokuʻāina o ka hoʻomaha ke ʻole ka ikaika e hoʻokau iā ia. O kahi laʻana: Inā kū kahi kaʻa me ka ʻenekini, e kū ia inā ʻaʻole neʻe kekahi mea iā ia.
  • Kānāwai ʻelua: Kumumanaʻo kumu o ka ikaika. Hoʻohālikelike ka ikaika i kau ʻia ma ke kino i ka wikiwiki e loaʻa iā ia. O kahi laʻana: Inā kiki ke kanaka i kahi kinipōpō, e hele hou aku ke kinipōpō i ka nui o ka ikaika i hoʻokau ʻia.
  • Kānāwai ʻekolu: Kānāwai o ka hana a me ka hopena. Ke hoʻokau ʻia kekahi ikaika ma luna o kahi mea (me ka neʻe ʻana a i ʻole neʻe ʻia), hana ia i ka nui o ka ikaika ma ka mua. O kahi laʻana: SInā kū hewa kekahi me ka paia, hoʻoili ka paia i ka ikaika like ma luna o ke kanaka e like me ka hana a ke kanaka ma ka paia.
  1. Kānāwau o ka umekaumaha

Ua hāpai ʻia ke kānāwai o ka umekaumaha e Newton a wehewehe i ka pilina paʻa ma waena o nā kino like ʻole me ka nui. Ua hoʻokumu ʻia ʻo Newton i kāna mau kānāwai o ke noi e hoʻopaʻapaʻa e pili ana ka ikaika umekaumaha (ka ikaika e ʻumeʻume ai nā kino ʻelua i kekahi) i ka mamao ma waena o kēia mau kino ʻelua a me ka nui o kēlā me kēia mau kino. No laila, kūlike ka ikaika umekaumaha i ka huahana o ka nui i māhele ʻia e ka mamao ma waena o lākou i pahu.


  1. ʻO ke ʻano Corpuscular o ka mālam

Ma ka holoholo ʻana i ke kahua o optics, ua hōʻike ʻo Newton ʻaʻole i haku ʻia nā kukui i nā nalu (e like me ka mea i manaʻoʻiʻo ʻia) akā ʻo nā huna (ʻo ia i kapa ʻia he mau kupapaʻu) i kiola ʻia me ka wikiwiki a me kahi laina pololei mai ke kino e puka i ke kukui. Ua hōʻike ʻia kēia kumumanaʻo e Newton i kāna hana: Opticks kahi e hoʻopaʻa ai i ka refraaction, reflekte a me ka lūlū ʻana o ka malamalama.

Eia naʻe, ua hoʻowahāwahā ʻia kāna kumumanaʻo no ka manaʻo o ka nalu o ke kukui. Ma ke kenekulia 20 wale nō (me nā holomua i nā mīkini mekanika) hiki ke wehewehe i ke ʻano o ka mālamalama ma ke ʻano he huna, i kekahi mau hihia, a me kahi nalu, i nā hihia ʻē aʻe.

  1. Kumumanaʻo o ke kala

ʻO ke ānuenue kekahi o nā enigmas nui loa o ko Newton mau wā. Ua ʻike kēia ʻepekema i ka mālamalama mai ka lā e like me ke kukui keʻokeʻo i hoʻopau ʻia i loko o nā waihoʻoluʻu like ʻole e hana ana i ke ānuenue.

Ua nānā ʻo ia iā ia e hoʻohana ana i kahi prism i kahi lumi pouli. Hoʻokuʻu ʻo ia i kahi kukuna kukui i kekahi kukuna ma loko o kahi lua. Ua komo kēia i loko o kekahi o nā helehelena o ka prism a ua hoʻokaʻawale ʻia i nā kukuna kala me nā huina ʻokoʻa.


Ua hoʻohana pū ʻo Newton i ka mea i kapa ʻia ʻo Newton's disk, kahi pōʻai me nā lālā i pena ʻia i ʻulaʻula, ʻalani, melemele, ʻōmaʻomaʻo, cyan, polū, a me ka poni. Ma ka wili ʻana i ka diski i ka wikiwiki, hui nā kala i keʻokeʻo.

  1. Teleskopa Newtonian

I ka makahiki 1668, ua hoʻolauna ʻo Newton i kāna teleskopa hōʻike manaʻo i hoʻohana i nā aniani concave a me nā convex. A hiki i kēlā manawa, ua hoʻohana nā kānaka ʻepekema i nā teleskope refacting, kahi i hoʻohui i nā prisma a me nā aniani e hiki ai ke hoʻonui i ke kiʻi e nānā i kahi mamao loa.

ʻOiai ʻaʻole ʻo ia ka mea mua e hana me kēia ʻano teleskopa, hāʻawi ʻia ʻo ia me ka hoʻopiha ʻana i ka mea kani a me ka hoʻohana ʻana i nā aniani parabolic.

  1. Kinona o ka Honua

A hiki i kēlā manawa, a mahalo i nā hāʻawi a me nā ʻike o Nicolás Copernicus lāua ʻo Galileo Galilei, ua manaʻo ʻia he poepoe maikaʻi ka Honua.

Ma muli o ka pōʻai o ka honua ma kāna iho iho a me ke kānāwai o ka umekaumaha, ua hoʻohana ʻo Newton i ka makemakika a lawe i ka mamao mai nā kiko like ʻole o ka honua a i kona kikowaena. Ua ʻike ʻo ia i kēia mau ana ʻokoʻa (ʻo ke anawaena o ka equator ʻoi aku ka lōʻihi ma mua o ke anawaena mai kahi pou a kahi pou) a ʻike i ke ʻano oval o ka Honua.

  1. ʻO ka wikiwiki o ke kani

Ma 1687 paʻi ʻo Newton i kāna kumumanaʻo o ke kani i: ʻO Philosophiae Naturalis Principia Mathematica, ma kahi āna e ʻōlelo ai ʻaʻole ka hilinaʻi o ka wikiwiki i kona ikaika a i ʻole pinepine, akā i nā ʻano kino o ka wai e holo ai. O kahi laʻana: Inā hoʻokuʻu ʻia ke kani ma lalo o ka wai e hele ia i kahi wikiwiki ʻokoʻa ma mua o ka mea i hoʻokuʻu ʻia i ka ea.

  1. Kānāwai hoʻolāʻau wela

ʻIke ʻia kēia kānāwai ʻo Newton no ke anuanu, hōʻike kēia kānāwai ʻo ka make wela i ʻike ʻia e ke kino ka mea kūlike i ka ʻokoʻa o ka mahana ma waena o kēlā kino a me nā wahi a puni.

O kahi laʻana: A I OLEE anuanu wikiwiki ke kīʻaha o ka wai wela ma kahi lumi o 10 ° ma mua o ka mahana o ka lumi o 32 °.

  1. Heluhelu 'ana

Ua komo ʻo Newton i ka calculus infinitesimal. Kāhea ʻo ia i kēia helu helu fluxions (ka mea a mākou i kapa ai i nā lā), kahi mea hana e kōkua i ka helu ʻana i nā orbits a me nā curves. I ke kakahiaka nui 1665 ua ʻike ʻo ia i ka theomem binomial a hoʻomohala i nā loina o ka helu pāʻālua a me ka helu hoʻohui.

ʻOiai ʻo Newton ka mea mua i hana i kēia mau mea i ʻike ʻia, ʻo ia ka makemakika Kelemania, ʻo Gottfried Leibniz, ka mea, i ka loaʻa ʻana o ka calculus iā ia iho, a paʻi i kāna mau mea i ʻike ai ma mua o Newton. Ua loaʻa iā lākou kahi paio i kū ʻole a hiki i ka make ʻana o Newton i 1727.

  1. Nā Loli

I kāna hana: ʻO Philosophiae Naturalis Principia MathematicaUa wehewehe ʻo Newton i ka hana o nā kai e like me kā mākou i ʻike ai i kēia lā. Ua ʻike ʻo ia ʻo ka loli i ke kai e pili ana i nā ikaika umekaumaha a ka Lā a me ka Mahina ma ka Honua.

  • E hoʻomau me: Nā hāʻawi o Galilei Galilei


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