Sayansi

Nkhani Yokhudza Malamulo Ofunika Kwambiri

Manambala ofunika ndi manambala omwe amapezeka kudzera mu miyeso yomwe imakhala ndi manambala ofunika enieni (omwe amawerengedwa pa chida choyezera) ndi chiwerengero chimodzi chomaliza choyezera.

Tiyerekeze kuti tiyesa kutalika kwa chinthu pogwiritsa ntchito rula (Malire olondola a rula ndi 1 mm kapena 0,1 cm) ndikupereka zotsatira zake m'ziwerengero zitatu zofunika, mwachitsanzo 4,55 cm. Ngati kutalika kwa chinthucho kwayesedwa pogwiritsa ntchito vernier caliper (Malire olondola a vernier caliper ndi 0,1 mm kapena 0,01 cm) ndipo zotsatira zake zanenedwa m'ziwerengero zinayi zofunika, mwachitsanzo 4,485 cm ndipo ngati zayesedwa ndi micrometer screw gauge (Malire olondola a micrometer screw gauge ndi 0,01 mm kapena 0,001 cm) ndipo zotsatira zake zanenedwa m'ziwerengero zisanu zofunika, mwachitsanzo 3,4845 cm. Izi zikusonyeza kuti chiwerengero cha ziwerengero zofunika zomwe zanenedwa ngati zotsatira zoyezera chikuwonetsa kulondola kwa muyeso. Ziwerengero zofunika kwambiri zomwe zinganenedwe, ndiye kuti muyesowo ndi wolondola kwambiri. Zachidziwikire, kuyeza kutalika kwa chinthu ndi micrometer screw gauge ndikolondola kwambiri kuposa ndi vernier caliper ndi rula.

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Nkhani za Malamulo a Kepler

Kodi mukukumbukira nthawi yanu yoyamba kukwera galimoto (osati pamene munali khanda)? Mukakhala mgalimoto yoyenda, munkaona ngati mitengo kapena nyumba zikuyenda. Panthawiyo, mwina munkaganiza kuti mitengo kapena nyumba zikuyenda, pamene inu ndi galimotoyo munali chete. Zoona zake n'zakuti, inu ndi galimotoyo munali kuyenda, pamene mitengo kapena nyumbayo munali chete. Timaonadi kuyenda kumeneku kapena kuyenda kolakwika tsiku lililonse. M'mawa uliwonse dzuwa “limatuluka” kum'mawa, kenako limapita kumadzulo ndipo “limalowa” kumadzulo masana. Mofananamo, usiku, nthawi zambiri mumawona mwezi ukusuntha kuchokera kum'mawa kupita kumadzulo. Kodi munayamba mwaganizapo kapena kuganiza kuti dzuwa ndi mwezi zimayenda mozungulira dziko lapansi, pamene dziko lapansi lili chete?

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Kodi munayamba mwawonapo ndege ikuyenda pa bwalo la ndege? Ngati sichoncho, tengani nthawi yopita ku eyapoti mumzinda wanu. Yang'anirani kayendedwe ka ndege ikatsala pang'ono kunyamuka kapena kutera. Ikatsala pang'ono kunyamuka, ndege imayamba kuyenda molunjika kuchokera pamalo osaima kenako kuyenda kwake kumathamanga mpaka pomaliza pake kuuluka. Mosiyana ndi zimenezi, ikatera, kuyenda kwa ndege, komwe poyamba kunali kothamanga kwambiri, kumachepa pang'onopang'ono. Kuyenda kwa ndege pa bwalo la ndege ndi chitsanzo cha kuyenda kolunjika kolunjika kolunjika. Kodi munayamba mwawonapo chipatso chomwe chagwa kuchokera ku tsinde lake ndikugwa pansi? Kuyenda kwa chipatso kapena chinthu chilichonse chomwe chikugwa kuchokera kutalika kwina kupita pansi ndi chitsanzo cha kuyenda kolunjika kolunjika kolunjika ndipo izi zikukambidwa mwatsatanetsatane mu kugwa kwaulere . Kodi mungapereke zitsanzo za kuyenda kolunjika kolunjika kofanana m'moyo watsiku ndi tsiku?

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Kodi mudakwerapo njinga yamoto kapena galimoto? Tikukhulupirira kuti ayi 🙂 hehe… kukhala m'nkhalango 😀 Ngati njinga yamoto kapena galimoto yomwe ikuyendetsedwa ikuyenda molunjika ndipo liwiro lake ndi losasintha, mwachitsanzo 60 km/h ndiye kuti njinga yamoto kapena galimotoyo ikuyenda molunjika pa liwiro losasintha (GLB). Sitima zoyenda pansi kapena ndege nthawi zina zimachitanso GLB. N'zosavuta kuona zinthu zikuyenda molunjika m'moyo watsiku ndi tsiku koma n'zovuta kuona zinthu zikuyenda GLB. Kodi mungatchule chitsanzo cha GLB chomwe mudachiwona kapena kuganizira?

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Kuwonjezera mavekitala kungachitike pogwiritsa ntchito zithunzi (pogwiritsa ntchito zithunzi) komanso mosanthula (pogwiritsa ntchito mawerengedwe).

Kuwonjezera zithunzi za vekitala

Kuwonjezera mavekitala pazithunzi ndi kuwonjezera mavekitala komwe kumachitika pojambula mavekitala oti awonjezedwe ndi vekitala yotsatira, kenako kukula kwa vekitala yotsatira kumapezeka poyesa pogwiritsa ntchito rula.

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Masiku ano miyoyo yathu yakhala yosavuta komanso yomasuka chifukwa cha kukhalapo kwa magalimoto okhala ndi mawilo, zida zamakono monga majenereta, makina opera, mafani, makina odulira udzu, zothira maluwa ndi zina zotero. Magalimoto okhala ndi mawilo monga njinga, njinga zamoto, magalimoto ndi ndege sangathe kuyenda ngati alibe mawilo kapena ngati mawilo sazungulira. Ma helikopita kapena ndege sizingayendenso ngati ma propeller awo sazungulira. Zombo sizingayende ngati majenereta awo kapena ma propeller awo sazungulira. Usiku, nyumba imakhala yakuda kwambiri ndipo palibe zosangalatsa ngati jenereta kapena malo opangira magetsi sagwira ntchito. Zinthu zambiri zimayenda mozungulira tsiku lililonse. Ngakhale osazindikira, dziko lapansi lomwe tikukhalamo, mwezi womwe umatiunikira usiku, ma satellite opanga monga ma satellite olumikizirana omwe amatumiza mafunde amagetsi pa wailesi yakanema, wailesi, foni yam'manja, ndi mawailesi apa intaneti, amazungulira nthawi zonse, omwe amadziwikanso kuti amayenda mozungulira nthawi zonse.

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Zinthu Zoyenda Molunjika

Kuyenda ndi chinthu chomwe timachiwona nthawi zonse m'moyo watsiku ndi tsiku. Nthambi ya fizikisi yomwe imaphunzira kuyenda imatchedwa makanika. Nthambi ya makanika yomwe imakambirana momwe chinthu chimayendera, popanda kuganizira chifukwa cha kuyenda, imatchedwa kinematics . Mosiyana ndi zimenezi, nthambi ya makanika yomwe imakambirana zomwe zimayambitsa kuyenda ndikufotokozera chifukwa chake zinthu zimayendera momwe zimayendera imatchedwa mphamvu. Munkhaniyi, chinthu chilichonse choyenda chimaonedwa ngati tinthu tating'onoting'ono kapena mfundo (.). Zinthu zoyenda zimaonedwa ngati mfundo kuti zingosavuta kusanthula kwathu. Tangoganizirani ngati mfundo ikuyenda molunjika, ndiye kuti njira yake idzapanga mzere wolunjika.

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Zinthu Zoyenda Mwaulere Zoyenda Mu Nthawi Yogwa

Kale, kuyenda kwa zinthu zomwe zimagwa pansi kunali nkhani yosangalatsa kwambiri mu filosofi yachilengedwe. Katswiri wafilosofi Aristotle nthawi ina adanena kuti zinthu zomwe zimakhala ndi kulemera kwakukulu zimagwa mofulumira kuposa zinthu zopepuka. Lingaliro la Aristotle linakhudza maganizo a anthu omwe anakhalapo Galileo asanakhalepo, omwe ankakhulupirira kuti zinthu zomwe zimakhala ndi kulemera kwakukulu zimagwa mofulumira kuposa zinthu zopepuka ndipo liwiro la kugwa kwa chinthu limagwirizana ndi kulemera kwake. Mwina musanaphunzire nkhaniyi, munaganizanso chimodzimodzi.

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Kuyenda kwa parabolic kapena kuyenda kwa projectile ndi mtundu wa kuyenda komwe chinthu chimapatsidwa liwiro loyambirira kenako kuyenda kwake kumakhudzidwa kwathunthu ndi mphamvu yokoka. Kuyenda kwa projectile ndi kuyenda kwa magawo awiri, kuphatikiza kuyenda kolunjika ndi kolunjika, mosiyana ndi kuyenda kolunjika kapena kugwa kwaulere, komwe ndi mayendedwe a gawo limodzi.

Galileo anafotokoza kuti kuyenda kwa parabolic kumatha kumvedwa poganizira zigawo zoyima ndi zopingasa za kuyenda padera. Kuthamanga kwa mphamvu yokoka kumagwira ntchito molunjika, osati mopingasa. Chifukwa chake, gawo lopingasa la kuyenda kwa projectile limawonedwa ngati kuyenda kofanana kwa mzere , ndipo gawo lopingasa la kuyenda kwa parabolic limawonedwa ngati kugwa kwaulere.

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Lamulo la Newton la Zinthu Zokoka

N’chifukwa chiyani chipatso chimagwa kapena kuyenda kupita pamwamba pa Dziko Lapansi chikachotsedwa pa tsinde lake? Malamulo a Newton amanena kuti ngati chipatso chisuntha, payenera kukhala mphamvu yomwe ikugwira ntchito pa icho. Mphamvu yomwe imapangitsa chinthu kugwa momasuka kupita pamwamba pa Dziko Lapansi imatchedwa mphamvu yokoka ya Dziko Lapansi.

Vuto la zinthu zogwa zomwe zimakhudza mphamvu yokoka, lomwe mukuliphunzira tsopano, linaganiziridwa ndi kuphunziridwa koyamba ndi wasayansi wa ku Britain yemwe anamwalira Isaac Newton. Nkhawa za Newton zinayamba ku Greece yakale. Pali mavuto awiri akuluakulu omwe Agiriki anali kufufuza kalekale Newton asanabadwe.

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