Kodi mita?

Zingatanthauze kuti zimene zikhoza kukhala chosavuta kumva osati unit kanthu, chimene munthu aliyense loyang'anizana kwenikweni pa kubadwa kwa. Meter, kilogalamu, lita ... Komabe, nthawi zina moyo ayika mafunso latsopano zisadachitike izi "alangizi otchuka". Chimodzi mwa zitsanzo ngati zimenezi - kodi mita izi. Ndithudi, maphunziro kusukulu Masamu mu mayunitsi zoopsa aliyense si anayeza. Choncho, mwina iwo kulibe, monga kuchita mamita kuthamanga - zopeka koyera? Tsopano kuti Internet ndi kufikamo kwa onse, chiphunzitso, inu mosavuta kupeza yankho pafupifupi funso lililonse. Chinthu chachikulu - ndi woyenerera kupanga izo. Nditchimo ndi kulemba mu kufufuza kapamwamba pempho osatsegula "kuti mita ndi" Ndithu anadabwa chakuti mawu awa amaphatikizidwa ndi khitchini lathu. Kodi izi zikutanthauza chiyani?

muyezo

Mwina, pambuyo pa zonse, tiyenera kufufuza mosamala funso la chimene mita. Mwachionekere, kuyambira tikulankhula mayunitsi wa muyeso, kufunafuna yankho lake liyenera kukhala mu France, mu Bureau of poyeza, zomwe zimasunga onse zitsanzo Buku SI. Koma ngati ife tingakhoze kuyang'ana pa nthandala, ndiye palibe lanthano liniya mita pali sanapezeke. Izi zikusonyeza kuti mita pano chofunika muyeso m'litali ndi njira zina okha zokhudzana.

Poyamba, munthu khumi gawo la nthawi ya meridians lapadziko, intersecting Paris anatengedwa buku. miyeso zofunika anali akuyendera 1795, ndipo pambuyo kumayambiriro kuwonjezapo kukonza mu 1799, zochokera mzere deta unapangidwa zosapanga kukula pulatinamu. Kenako Komabe, yolondola mamita amenewa ayamba anakayikira, kuyambira mawonekedwe a dziko ili kutali ndi malo angwiro, komanso geodesy chakale kupeza amenewa sikunachitekepo molondola popanda Kanema chinkafunika kuli kovuta. Ngati pa nthawi ya pachiyambi "muyeso" molondola ake zinali zokwanira kwambiri kuti ntchito yonse ya nthawi, zinthu kusintha chaka chilichonse. Chifukwa cha zimenezi, mu 1960, izo akufuna kugwiritsa ntchito monga mita mbali zina za timaganiza za kusintha atomiki mu krypton. Ndipo zaka 23 kenaka analandira muyezo wa kutanthauzira yawo yamakono, womangidwa ndi m'litali mwa njira ya mtanda kuwala zingalowe m'malo a.

Kodi mita?

Mawu amenewa ntchito kwenikweni mu kugulitsa katundu adagulung'undisa. Uyamiko kwa Iye, sangathe kwambiri wosalira kuwerengetsera lapansi. Mwachitsanzo, munthu ayenera kugula 10 mamita lalikulu la linoleum. The ogulitsira zinthu yogwira kuzindikira mu masikono, ndipo m'lifupi amene ali invariable aliyense chitsanzo. Choncho, kupeza chofunika 10 sq. mamita 2 m lonse mpukutu, m'pofunika kuyeza okha 5 m. Popeza 2 m * 5 mamita = 10 sq. M. Nawa 5 - ndipo ali mita. M'mawu ena, mita ndi wofanana ndi mtengo limanena, koma maganizo a aliyense mtengo zina zonse (Pankhaniyi m'lifupi).

Komabe, tanthauzo limeneli amafuna kuwafotokozera, monga pafupipafupi akuti "liniya mita khitchini," si nthawi zonse bwino. Ndipotu, ndi chitsanzochi, ndi kugula katundu khitchini, theoretically, tingafunse kuti unwind kuchokera mayina nambala inayake ya makabati. chisokonezo ukapezeka chifukwa chakuti mavenda mankhwala ngati mipando ndaitchula mfundo zonse amaonedwa osati lonse, ndipo mtengo wa zinthu ndi ntchito. Ngati tikudziwa mtengo wa mita, ndipo aliyense motsatizana amasiyana yekha mu kasinthidwe okhudza malo (pokhalabe yofanana zinthu), zingakhale zosavuta kuti ntchito mfundo kuwerengetsera pafupifupi pa mita. Ogula chidwi mtengo wa "yemweyo khitchini chitsanzo, koma wamkulu kapena wamng'ono m'litali," mosavuta kuwerengera, ngakhale paokha.