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Ray - ndechimwe geometric pfungwa. Mabviro ezwi uye kwakabva shoko

Mashoko tinoshandisa, sokuti kwatiri ziendamberi, nomuzikamwi kubva pauduku uye unonzwisisika. Tinofunga kuti isu ndichiremekedza zvatinotaura uye zvatinoita anorevei. Asi kana ukaedza kuwana kubva chero waipfuura wainzi mumugwagwa Somuenzaniso, shoko rokuti "danda", mumwe hakugoni kuvimba nokukurumidza uye zvakarurama mhinduro. Zvechokwadi, chii ichocho?

Mabviro ezwi rokuti

Tichanzwisisa kutanga kwakabva shoko. Maererano duramazwi mutauro Russian, danda - danda chiedza chinobva chero kupi, kana rakamanikana neboka chiedza chaibwinya kubva luminous chinhu. Somuenzaniso, mwaranzi yokuvira kana nokunobuda zuva.

Chaiyo Nezvekwakabva shoko rokuti harizivikanwi, asi anofungidzirwa kuti zvinobva rechiLatin rokuti "chiedza." In necheSalvic mitauro shoko kwose kwose. In Russian raiwedzera zvavo Old kwechiSlavonic.

Zvinoreva uye yezvinoreva

Shoko 'danda' zvikurukuru rinovayeuchidza songaniro pamwe chiedza chezuva. Kangani zvose vakanzwa okuti: "Mwaranzi yezuva" kana "ukurire chiedza". Asi chokwadi shoko iri akarondedzera geometry zvakananga. Beam - yakarurama chikamu, iyo rakatenderedzwa kurudyi imwe pfungwa uye panorumwe - magumo.

Chero danda kukurusa pfungwa. Ndiwo mavambo danda. Sezvo asina magumo, kakawanda runotaurwa tsamba imwe chete. Mukuwedzera, danda - ichi ndechimwe nyore geometric zvitarisiko, zvakadai somunhu mutsetse kana wakaputsika mutsetse.

Pfungwa danda rinoshandiswawo wefizikisi, asi chete acoustics uye geometric optics. Pano, danda - ndiwo mutsetse pamwe iro chiedza simba ichifamba.

The chikuru chepfungwa geometric uye chiedza danda - ndiko straightness yavo. Asi chiedza ichi ichokwadi chete kana kwayo kupararira mune yunifomu segirazi svikiro. Zvikasadaro, zvinova curved.

How kuona chiedza

Izvi zvinofadza chaizvo vana, zvichava zvakajeka kuvaratidza kuti kachiedza chiedza. For nyore kugadzirira ichi kunodiwa. Zvakakodzera rima mumba uye kupfeka kumucheto tafura upi furashiraiti. A danda chiedza zvino nepaburi zvinoonekwa, asi kana iwe zvinoshamisa dzvinya pre-akagadzirira epurasitiki Bhodhoro talcum upfu kana mwana upfu sezvo upfu nezvimedu, kamwe mairi, vanotanga hwihwinyara. Ikozvino vana vanogona kuona kuti chiedza danda - a kanyika chiedza zvinobva kuna zhenje uye kuramba kupinda kusaverengeka. Nei izvi zvichiitika? Chokwadi kuti chiedza haichaonekwi kusvikira zvino, kusvikira zvinoratidzwa chero pemvura. Talc nezvimedu, kamwe mune danda chiedza, zvichiita zvakajeka zvinoonekwa.

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