Yuav ua li cas yog qhov ib ncig

Peb feem ntau ua hauj lwm nrog geometric nuj nqis uas suav defy yooj yim piav. Yog hais tias koj xav mus nrhiav cov cheeb tsam ntawm ib tug square los yog duab plaub, lawv yuav tsum tau muab faib mus rau hauv tej qhov chaw thiab coj txoj cai formula intuitively. Txawm li cas los, qhov ntev ntawm lub vajvoog - tsis heev ib tug qauv khoom dog dig me nyuam kawm ntawv. Feem ntau muaj yog ib tug tsis muaj kev nkag siab ntawm lub npe. Cia peb kawm saib yog dab tsi tsis ncaj ncees lawm.

Lub voj voog nws tus kheej yog tsim los ntawm ob tug tsis: lub voos kheej-kheej thiab cov geometric txoj hauj lwm ntawm qhov chaw. Xeem versed nyob rau hauv high school, ces peb tau me ntsis kev txaus siab rau nws. Tiam sis ua ntej nws teev cov yooj yim zog, xws li square. Circumference ua tau nyob tsuas yog nyob rau hauv lub voos kheej-kheej xam raws li nram qab no: Muaj

L = 2np

Rau cov yam daim duab L. txais modifier P ( "Pi") yog ib qho chaw. Nyob rau hauv thiaj li yuav ntse daws teeb meem nyob rau hauv lub tsev kawm ntawv txaus kom paub tias P = 3.14. Txawm li cas los, tsis yeej ib txwm tsim nyog los hloov cov nqi no, vim hais tias nws yog heev simplistic. Thaum nws los txog rau loj scale, nws yog tsim nyog los noj mus rau hauv tus account lub loj pes tsawg tus zauv qhov chaw. Yog li ntawd, nyob rau hauv Feem ntau, nws yog ib tug ntau tau teb nyob rau hauv ib tug general txoj kev tsis muaj pub muab kwv yees. Nco ntsoov tias lub xam circumferential ntev nyob tsuas yog nyob rau hauv lub voos kheej-kheej. Nws yog ib qho kev ntsuas ntawm yuav ua li cas nyob deb muab tshem tawm tag nrho cov ntsiab lus ntawm lub vajvoog ntawm qhov chaw. Raws li, qhov no parameter yog ntau tshaj li qhov ntev lub arc. Raws li ib txwm deb metrics, L yog ntsuas nyob rau hauv meters. R - voos kheej-kheej.

Nyob rau hauv ntau cov tswv yim cov ntsiab lus uas muaj nyuab paub tab. Piv txwv li, thaum yuav tsum tau ntev ntawm lub arc ntawm ib lub voj voog. Ntawm no ib tug me ntsis ntau tham mis. Nws yuav tsum tau to taub hais tias nws yog raws li nyob rau hauv qhov yooj yim txawv, tab sis koj txiav tawm ruaj ib feem ntawm qhov ntev. Nyob rau hauv nqe lus dav dav, nws muaj peev xwm yuav sau li:

L = 2np / 360 * n

Raws li yuav pom, muaj ib tug tshiab kuj sib txawv thiab n. Qhov no yog ib tug ntshiab hais. Tag nrho ib ncig twb muab faib ua 360 degrees. Yog li, nws los ua lub npe hu ua li cas muaj ntau yam meters tau 1 degree. Ntxiv mus, hloov rau cov tsis tus xav tig ib ncig ntawm lub axis es tsis txhob ntawm tsab ntawv n, tus peb tau txais qhov ntev-awaited teb. Noj lub tsev ya, peb yog nyob rau hauv kev faib ua feem rau nws nce n lub sij hawm.

Yuav ua li cas koj yuav tsum paub nyob rau hauv lub neej tiag tiag, dab tsi yog qhov ncig? Lo lus nug no yuav muab tsis tau ib lo lus teb, uas yuav them rau tag nrho cov qhov chaw ntawm daim ntawv thov. Tab sis yuav pib nrog qhov kev xeem ntawm txheej thaum ub teev. Paub txog ntau yam ntawm cov lus tsa suab ntawm lub thib ob txhais tes, nws tseem tau mus nrhiav tus nyob deb li hais tias nws tau mus nyob rau hauv ib feeb. Tom qab ua lub npe hu txoj kev thiab lub sij hawm, peb yuav nrhiav tau cov kev ceev uas nws txav. Thiab ces yuav tsuas tob zuj zus cov neeg koom rau cov sij hawm. Yog hais tias lub cyclist yog mus rau ib tug yeej khiav, nws mus ncig teb chaws lub sij hawm yog nyob rau ntawm cov kev ceev thiab ib voos ncig. Koj yuav nrhiav tau thiab nws acceleration. Nyob rau hauv ntxuav machines yog tsis muaj nws Performance index, uas peb yuav luag rhuav. Muaj circumferential ntev uas yuav tsum tau rau suav revolutions (tag nrho cov nyob rau hauv qhov tseeb rests on qhov kev ncua deb), ua rau ib tug tej tus nqi ntawm lub sij hawm. Nyob rau hauv dav heev cov nqe lus vim circumferential ntev ntawm lub kwv yees suab ntawm lub ntiaj teb nyob rau hauv orbits thiab thiaj li nyob.

Yog li, rau ib tug to taub ntawm lub npe yog tsim nyog los nco ntsoov tsuas yog ob tug qauv. Txoj kev paub no yuav pab tau rau koj xwb tsis nyob rau hauv tsev kawm ntawv kom zoo qib, tab sis kuj nyob rau hauv lub neej tiag tiag.