Ho okumu'epekema

Ka ikaika o ka umekaumaha. 'Ano a me ka mea hiki manaʻo nui

XVI - XVII kenekulia, he nui pono i kapaia kekahi o ka loa nani manawa i loko o ka mōʻaukala o ke kālaikūlohea. Ua i i keia manawa, ua pili kēia waihoia na kumu, me ka i hou 'ana o kēia' epekema ina ua poino mau wale hiki. Copernicus, Galileo, Kepler i hana ai i ka 'oihana nui e olelo aku e pili ana i ke kālaikūlohea like me ka' epekema i hiki pane aneane kekahi nīnau. Alone i loko o ka pau moʻo o discoveries kumukuai o ke kānāwai o ka umekaumaha, i ka hua'ōlelo hope loa o ka i ua waiwai ia e ke koʻikoʻi English nä känaka 'epekema Isaac Newton.

I ka papa kuhikuhiE waiwai o ka hana o nā kānakaʻepekema mea,ʻaʻole i loko o ka loaʻa o ka gravitational ikaika - ka alo o keia nui mua Newton aku la, a me Galileo, a me Kepler, a ia ia i ka mea mua, e hooiaio ana i ke ao nei, a kaʻana like i ka hana i loko o waho makahiki ka AaOIeIOUIeXAOAaIN ikaika ma waena o nā kino.

Newton hookupaa iho la ia i ka hoʻomaʻamaʻa, a theoretically kākoʻo ma ka mea e loa na kino a pau i loko o ka ke ao holoʻokoʻa, a me ka poʻe e noho ana ma luna o ka honua, pāʻani aku i kekahi i kekahi. Kēia AaOIeIOUIeXAOAaIN Ua kapaia umekaumaha, oiai ke kaʻina hana o ka ao gravitation - gravitation.
Kēia AaOIeIOUIeXAOAaIN ia lŘlŘ ma waena o nā kino, no ka mea, he kūikawā, e like kekahi me ka ano o ka mea, i ka 'epekema ua kapaia he gravitational kahua. Kēia kahua ole a me ka hana loa puni kekahi e hoopii mai ai, me ka ole ka palekana i ka ka mea hakuʻole, e like me ka mea i mea ole ma e like kekahi hiki e komo iloko o ka mea.

Ka ikaika o ka umekaumaha, me ka ho'ākāka 'ana a me ka hua'ōlelo i haawi Isaak Nyuton, mea he pololei hana o ka huina hoonui o ka hū o ka interacting kino, a inversely hapaʻauhau i ke kahua o ka mamao mezhduetimi mea. E like me ia Newton, irrefutably hookupaa iho la ia ma ka mea hiki hoʻokolokolo 'ana i, o ka mana o ka umekaumaha like penei:

F = MM / R2.

Ka mea, e pili ana i ka kūikawā cia o ka gravitational ikaika G, i ke kaha like kokekau i 6.67 * 10-11 (N * m2) / kg2.

Ka ikaika o ka umekaumaha me i kino i o Laielohelohe i ka Honua, o ka kūikawā hihia o Newton ka kānāwai ua kapaia umekaumaha. Ma keia hihia, ka gravitational ikaika, a me ka hū o ka Honua iho hiki ke malama ole, no laila, umekaumaha loaa haʻilula makemake e:

F = mg.

Here, g. -ʻaʻole wale i ka hoʻonui o noa haule, ka laulā cia i ke kaha like kokekau i 9,8 m / s2.

Newton ka kānāwai wehewehe ole wale na keʻano o ka hanaʻana i lawe wahi 'ana ma luna o ka honua,ʻo ia ua hoakaka i pane mai i na mea he nui nīnau e pili ana i ka mea ma ka poe lń. Ma 'ana, me ka ikaika o ka gravitation ma waena o ano lani kahi i he kuleana ole ma o ka holo ana o ka Honua ma ka i loko o kā lākou mau orbits. I kaʻimi naʻauao hōʻikeʻano o kēia neʻeʻana i ua haawiia mai hoi e Kepler, akā, hoʻopaʻa haʻawina ka mea, ua hiki Newton ua kālaiʻia i kona kānāwai kaulana wale nō ma hope.

Newton iho ua hoʻopili i ka kŰia o ka honua a me ka extraterrestrial umekaumaha ka hoʻohana 'ana i ka mea hoʻohālike: ka wā i kī pū mai i ka pū Kernel Aʻole e lele pololei, a ma ka arcuate alanui. Ma keia hihia, ma ka hoʻoulu i ka malama ana o ka pauka a me ka hū o ka nucleus e ia i ka hope, e lele hou a me ka mamao. Eia hoi, ina ua kuhi ana ia mea hiki ke kiʻi nui o ka pauka, a, e? Ieoaeunoai i ka pū i kāna mau 'ōlelo lele a puni o ka poepoe honua, i ka hana i kēia hele, ka mea e ole ana, a e hoʻomau kona hoʻopoepoe (elliptical) ana, huli i loko o kaʻimi hoʻopunipuni ukali o ka Honua. E like me ka hopena, i ka ikaika o ka umekaumaha o ka ia ma ke ano maoli, a ma ka honua, a ma waho a puni.

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