Mary Allen
Loaʻa ka Rubber i ke kohu o kahi lāʻau kūikawā. Hiki ke hoʻohana ʻia ka lāʻau lapaʻau no ka holoi ʻana, no nā ʻaʻahu ua a me nā kāmaʻa kāmaʻa, no nā huila kaʻa, a me nā mea hou aku. ʻO ka inoa rubber no ka ʻōlelo India: "Cao" ʻo ia hoʻi ka lāʻau, ʻo "Ochu" ʻo ia ka waimaka.
No ka ʻāina ʻo Amazon ma ʻAmelika Hema ka lāʻau lāʻau. Hiki iā ia ke kiʻekiʻe waena. Ma lalo o ka ʻili, loaʻa iā ia nā paipu waiū e lawe ai i ke kohu mai ke aʻa a i nā lau. ʻO kēia wai wai he ʻelua hapakolu o ka wai a me hoʻokahi hapakolu o ka ʻōpala.
Ua ʻike mua ka poʻe India hiki iā ʻoe ke ʻoki i ka hapalua o ke kumu me kahi ʻoki ʻoki a kau i kahi pahu liʻiliʻi ma luna o ka lāʻau, a e kahe ka wai i loko. Inā ʻaʻole ʻoe e ʻoki i kēlā ʻaoʻao o ka lāʻau, hiki i ke kumulāʻau ke ola.
Ua kapa ʻia ka wai waiu he "ʻelepa maoli" a i ʻole "latex". Inā mānoanoa ʻoe i ka wai, hiki iā ʻoe ke hoʻohana iā ia e uhi i kahi ʻāpana lole a ʻili paha. Hana ʻia kēia i ka wai.
He aha kāu e hana ai mai ka lāʻau lapaʻau?
Laha wale ka laau kopa ma hope o ka loaʻa ʻana o ʻAmelika. I kēia lā, loaʻa ia ma nā mea kanu a puni ka honua, akā aia wale nō ma kahi ʻāpana wela ma nā ʻaoʻao ʻelua o ka equator. Ma mua o kēlā, ʻo ka beeswax wale nō i ʻike ʻia e hana i ka lole me ka wai kūpono. ʻOi aku ka maikaʻi me ka lāʻau.
I ka makahiki 1839, ua lanakila ʻo Charles Goodyear ʻAmelika i ka hana ʻana i ka lāʻau mai ka lāʻau maoli. Kapa ʻia ke kaʻina hana he vulcanization. ʻOi aku ka paʻa o ka Rubber ma mua o ka ʻōpala maoli. Hiki iā ʻoe ke waiho i ka palupalu a paʻakikī paha. He kūpono hoʻi ia no nā kaʻa kaʻa, no ka laʻana.
I ka makahiki 1900, ua lanakila ka Russian Ivan Kondakov i ka hana kino. Hiki iā ʻoe ke hana i ka lāʻau mai loko mai o ia mea. I kēia lā, ma kahi o kahi hapakolu o ka lāʻau lapaʻau mai ke ʻano maoli, ʻelua hapakolu i hana ʻia me ka hana ʻana, ʻo ka hapa nui mai ka ʻaila.
I kēia lā, ʻoi aku ma mua o ka hapalua o ka ʻōpala i hoʻohana ʻia i ka hana ʻana i nā kaʻa kaʻa. ʻO kekahi o nā hōʻailona nui loa i kēia lā ua kapa ʻia ma hope o kāna mea hana a kapa ʻia ʻo Goodyear. Hoʻohui ʻia ka soot mai ka chimney i ka lāʻau i ka wā e hana ai. ʻO kēia ka mea e paʻa ai nā kaila a hāʻawi pū iā lākou i kahi kala ʻeleʻele. Pono ʻia kahi ʻāpana liʻiliʻi no nā kāmaʻa kāmaʻa, nā kāmaʻa, nā lole pale kūikawā, nā kaula hao, nā mea holoi, nā mīkina lima, nā condom, a me nā mea hou aku.