Ray yog ib lub tswv yim geometric. Etymology thiab keeb kwm ntawm lo lus

Cov txheej txheem:

Ray yog ib lub tswv yim geometric. Etymology thiab keeb kwm ntawm lo lus
Ray yog ib lub tswv yim geometric. Etymology thiab keeb kwm ntawm lo lus

Video: Ray yog ib lub tswv yim geometric. Etymology thiab keeb kwm ntawm lo lus

Video: Ray yog ib lub tswv yim geometric. Etymology thiab keeb kwm ntawm lo lus
Video: 4-28-20 tsheej moua puas yog ib lub zoo tswv yim ua koj coj nws los nrog neb nyob 2024, Kaum ib hlis
Anonim

Cov lus peb siv zoo li peb paub, paub txij thaum yau thiab nkag siab. Nws zoo nkaus li peb ib txwm paub tias peb tham txog dab tsi thiab peb txhais li cas. Tab sis yog tias koj sim nrhiav los ntawm ib tus neeg taug kev ntawm txoj kev, piv txwv li, lub ntsiab lus ntawm lo lus "ray", koj tsis tuaj yeem suav cov lus teb sai thiab raug. Tseeb tiag, nws yog dab tsi?

beam nws
beam nws

Etymology ntawm lo lus

Cia peb pib nrog lub hauv paus ntawm lo lus no. Raws li phau ntawv txhais lus ntawm Lavxias teb sab lus, ib tug nqaj yog ib tug kwj ntawm lub teeb uas los ntawm tej qhov chaw, los yog ib tug nqaim sawb ntawm lub teeb los ntawm ib tug luminous khoom. Piv txwv li, lub rays ntawm qhov chaw los yog nce lub hnub.

lub ntsiab lus ntawm ray
lub ntsiab lus ntawm ray

Lub hauv paus ntsiab lus ntawm lo lus tsis paub, tab sis xav tias nws yog los ntawm lo lus Latin rau "lub teeb". Hauv Slavic lus, lo lus no muaj nyob txhua qhov chaw. Hauv Lavxias, nws tau txais lawv Cov Qub Slavonic.

Meaning and applications

Lo lus "beam" feem ntau cuam tshuam nrog lub hnub ci. Muaj pes tsawg zaus txhua tus tau hnov cov lus qhia: "sunbeams" lossis "ray of light". Tab sis qhov tseeb, lo lus no ncaj qha ntsig txog geometry. Ib txoj kab hluav taws xob yog ib feem ntawm txoj kab ncaj nraim, uas, ntawm ib sab,ib sab yog txwv los ntawm ib tug taw tes, thiab nyob rau lwm yam nws yog infinite.

Txhua txoj kab hluav taws xob muaj qhov taw tes hnyav. Qhov no yog qhov pib ntawm lub beam. Txij li thaum nws tsis muaj qhov kawg, nws yog feem ntau denoted los ntawm ib tsab ntawv. Tsis tas li ntawd, ib txoj kab hluav taws xob yog ib qho ntawm cov duab geometric uas yooj yim tshaj plaws, xws li cov kab ntu lossis kab tawg.

Lub tswvyim ntawm lub nqaj kuj yog siv hauv physics, tab sis tsuas yog hauv acoustics thiab geometric optics. Ntawm no cov nqaj yog txoj kab uas lub teeb lub zog txav mus.

beam nws
beam nws

Lub ntsiab feature ntawm geometric thiab lub teeb beam yog lawv qhov ncaj. Tab sis rau lub teeb qhov no muaj tseeb tsuas yog hais tias nws propagates nyob rau hauv ib tug homogeneous pob tshab nruab nrab. Txwv tsis pub, nws dhau los ua curvilinear.

Yuav ua li cas pom qhov kaj

Cov menyuam yaus yuav nyiam qhov kev paub no, nws yuav qhia lawv tias lub teeb ci li cas. Qhov no yuav tsum muaj qee qhov kev npaj yooj yim. Koj yuav tsum ua kom tsaus hauv chav thiab muab lub teeb nyem rau ntawm ntug ntawm lub rooj. Lub teeb ntawm lub teeb tam sim no tsis tshua pom, tab sis sai li sai tau thaum koj nyem lub raj mis yas pre-npaj nrog talc lossis me nyuam hmoov, cov hmoov hmoov, ib zaug hauv nws, pib ci. Tam sim no cov me nyuam pom tau hais tias lub teeb beam yog ib tug streak ntawm lub teeb los ntawm lub teeb nyem thiab txuas mus rau infinity. Vim li cas qhov no tshwm sim? Qhov tseeb yog tias lub teeb tsis tuaj yeem pom kom txog thaum nws pom los ntawm qee qhov chaw. Talc hais, tsoo lub teeb ntawm lub teeb, ua kom pom tseeb.

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