He mau kaukani makahiki no ka hana ʻana i nā wili liʻiliʻi a hiki i ka wā i hoʻopaʻa ʻia ai lākou ma ka ʻaoʻao o ka uaki a wehe ʻia i ka ʻaoʻao ʻē aʻe. Ua noʻonoʻo paha ka pauda gula i kahi pilikia, no ke aha e hoʻopaʻa ʻia ai lākou i ka ʻākaomi?
ʻO nā mea hana mīkini maʻalahi ʻeono:Nā Uila, Nā Ili Kūleʻa, Lever, Pulleys, Wedges, Wheels, Axles.
Aia ka wili i waena o nā mīkini maʻalahi ʻeono, akā no ka hoʻopaʻapaʻa ʻana, he axis wale nō ia a me kahi mokulele inclined e wili ana a puni. I kēia lā, ua hoʻomohala nā ʻūlū i nā nui maʻamau. ʻO ke ʻano maʻamau o ka hoʻohana ʻana i ka wili, ʻo ia ka hoʻopaʻa ʻana iā ia ma ke ʻano o ka uaki (e kū'ē i ka counterclockwise e wehe).
Eia naʻe, no ka mea, ua hana ʻia nā wili i ka hoʻomaka ʻana o ka mea i hana ʻia e ka lima, ʻaʻole kūlike ka maikaʻi o nā ʻili, i hoʻoholo pinepine ʻia e ka makemake pilikino o ka mea hana.
I ka waena o ke kenekulia 16, ua hana ʻo Jaques Besson i ka ʻenekini hoʻokolokolo Farani i kahi lathe i hiki ke ʻoki ʻia a lilo i ʻoki, a ua kaulana kēia ʻenehana i nā makahiki he 100. Ua haku ka Englishman Henry Maudsley i ka lathe hou i ka makahiki 1797, a me ia mea, ua hooi loa aku ka maikai o na kaula. Eia nō naʻe, ʻaʻohe kūlana kūlike no ka nui a me ka nani o nā wili.
Ua hoʻololi kēia kūlana i ka makahiki 1841. Ua hāʻawi ʻo Joseph Whitworth, he haumāna o Maudsley, i kahi ʻatikala i ka Institute of Municipal Engineers e kāhea ana i ka hoʻohui ʻana i nā hiʻohiʻona screw. Ua hāʻawi ʻo ia i ʻelua manaʻo:
1. He 55 ° ke kuhi o ka wiliwili.
2. Ma waho o ke anawaena o ka wili, pono e hoʻohana i kekahi maʻamau no ka helu o nā uea i kēlā me kēia wāwae.
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Ka manawa hoʻouna: Apr-16-2020