Uxinzelelo kakhulu - oko nendlela ...

Ngamanye amaxesha, nikhumbula ukuba iminyaka isikolo, ukuba ukukhumbula izifundo chemistry, physics. Sokwandisa nombono wam ngokuba umda ngokusebenzisa nolwazi ngale okanye nezinye izinto eziphathekayo. Abanye babo abazange bafune "iingcambu". Mhlawumbi ngenxa yokuba amaninzi avakalisa yi inkcazo utitshala akanayo umfanekiso ethile emzimbeni, kodwa, ekuqaleni, izinto ezithile.

Apha m - yonke into icacile. Ixesha, kakhulu, kubonakala ukuba akukho mibuzo, iwotshi - a ebuntwaneni yokudlala oyithandayo, phawula-tock, ngokungakhathali. Imitha, iyure, okwesibini - uhlobo wenyama "sikhule" ngokwasengqondweni. Kodwa cinga 10 km umoya ukuba "buya kuzityumza" kwi mini nobusuku, besoma, wabiza livusa yaye kungakholeleki - xi womoya. Kwaye kwenzeka ukuba oku konke, kukho uxinzelelo ezintle, kunye osmotic, negazi, kwaye ... kubangenisa kubo ngenani, zonke ezi ngcinezelo. Kamva, Noko ke, yonke into iwela ndawo, kodwa ukugweba iiforam Internet, imibuzo malunga nemiba eyahlukeneyo "kontanga" kombono ziye, kwaye iya kuba. Ngoko ke yintoni na - na uxinzelelo?

Intsingiselo esebenzayo i "kontanga" kombono kuxhomekeke yokuba olu phawu amandla ethile - umthwalo per unit ndawo. Nayiphi na into esiyibonayo, usoloko "umbutho", nto leyo ibeka uxinizelelo olukhulu nawuphi na umgangatho - itafile, window kwefestile, yimani, indlela. Indlela ukufumanisa ukuba ngubani na umthwalo omkhulu kwindlela - itanki okanye ukuhamba ngayo umntu? Oku kulapho ingqiqo lokunceda ubuninzi "ingcinezelo" emzimbeni, ebalwayo ngokusekelwe kwezinye izinto eziphathekayo. Ukuze wenze oku, amisele ubunzima injongosenzi kunye nommandla ngenkxaso yayo. Weight bahlulwe isikwere kwaye ufumane ixabiso uxinzelelo - masilivakalise ubunzima nganye unit ndawo, nithi, isentimitha square. Ngoku uyazi ukuba ngubani na ngakumbi 'ibunzi ".

Kwaye musa ndithi nangoku, ngubani kuqala wacebisa ukuba 'kwikholam "umoya mnye sentimitha isikwere kunye ukuphakama 100 km, oko ngokuqhelekileyo uthathwa kubude Umoya ojikeleze umhlaba, ekuthiwa womoya. Ukuba ukuphakama kwinqanaba uziro ukuthatha elwandle, ixabiso ngamanani womoya Ratm, ikwabizwa ngokuba mali womoya ukuya kg malunga 1 / cm macala onke. Kwenzeka ngokwembali ukuba lo ubungakanani omangalisayo emzimbeni - omnye atmosfera ilingana 1 kg / cm macala onke. - it AMAGQABAZA ▸ eziliqela. Ingakumbi, le zisetyenziswa kakhulu umlinganiselo lobeko na omise lesigidi - 1 emoyeni ilingana 760 Torr Xa ukuphakama eyahlukileyo ukusuka Umhlaba "ezicinezelayo" umhlathi komoya yahlukile, yaye ingcinezelo kulinganiswa le Barometer, kukho utshintsho kokuwa iyatshintsha. Ngokomzekelo, nomphakamo-5 km xi womoya uyancipha ngu 405 mmHg

Amanye amagama ukhetho Ingcinezelo ihlelwa ngohlobo ulwalamano lwabo kunye Barometer. Ngokomzekelo, ngokuqhelekileyo kusetyenziswa amanyathelo isixhobo gauge yobugcisa igeyiji yoxinzelelo. Ukuzimisela kunye nezandi, egqalwa uxinzelelo ngokugqithisileyo kuluhlu ngasentla yaye zibonisa womoya Rati wayo. Xa izicelo zobugcisa ngokufuthi kulinganiswa kanye overpressure.

Mhlawumbi ngaphantsi kwe womoya? Kakade ke, apho kunokwenzeka oko kuthiwa cleaner. Sivula Absolute - a xi elilingana ngokupheleleyo zero - ngaphantsi engenzekiyo. Ngoko ke, ukuba eli njengesiqalo, nayiphi na uxinzelelo libengaphezulu kunonothi kuthiwa eliphelele, kwaye iyahluka ukusuka kwiqanda ukuya naliphi na ixabiso, yaye bamele wezabasebenzi yayo.

Ungabala njani excess xi? Ifomula yokubala uxinzelelo elililo kukuba le fomu:

Wezabasebenzi = Ratm + Rati

Ngenxa yoko akukho nzima ukubala uxinzelelo kwemfuneko, njengoko umahluko phakathi:

Rati = wezabasebenzi - RATM

Ingcinezelo, ukuba ibinzana elula analytical, ngelishwa, kukho inani elikhulu kangaka iiyunithi zemilinganiselo ukuba iingcali kuphela bayaziqonda. I luncedo kakhulu kwezi bar, Pascal, kg / macala cm. nezakhi zayo kunye nezimaphambili wap mega, Giga.

I SI unit xi - UPascal - yinto amandla newton omnye kummandla ngesikwere semitha enye. Ngokwawo, i n / m. ixabiso elincinane esetyenziswa practice bar esukela ololo nama-100 kPa okanye 750 mm HG, ngamanye phantse 1 kg / macala cm. Apha ke, kwesangqa sele ivaliwe - kwakhona ukuba iyunithi xi ezintle zemibongo - emoyeni. Noko ke, kule meko, ibizwa ngokuba "umoya zobugcisa", nokuba bunye rhoqo, umxwile yobugcisa, uxinzelelo agqithisileyo kulinganiswa. Uluhlu olupheleleyo ohambelana esetyenziswa kwiindawo ezahlukeneyo kuxinzelelo ithatha amaphepha print entle.

Loo nto ilula yaye noxinzelelo ecacileyo ikhule ibe maze bofanelana bephinyelene leeyunithi zabo. Kodwa akukho sizathu sokuba Ungakhathazeki - kukho kusoloko incwadi yesalathiso lokuposa okanye online ....