Pēhanga nui - he aha me pehea ...

I te tahi taime, e mahara ana e ki nga tau kura, haamana'o te matū kaupapa, ahupūngao. whänui ratou toku outlook mo te rohe i roto i te mōhio ki tenei ranei ētahi atu ariā tinana. e kore etahi o ratou i hiahia ki te "te tango i pakiaka". Pea no te mea te nuinga o maha wewete e te whakamāramatanga o te kaiako e kore e whai i te whakapakoko tinana motuhake, engari ko, i tuatahi, ariā waitara.

Tenei m - he mārama katoa. Time, rawa, titiro ki te kahore pātai, te karaka - te ha'uti tamarikitanga tino, tohu-tock, te rohirohi ore. Mita, haora, tuarua - te natura tino o "tupu" ki te mahara. Engari whakaaro 10 km rangi e "kuru" i koe ra, me te po, te rohirohi, ka huaina lyrical me ngaro - te pēhanga kōhauhau. A ka tahuri te reira i roto i taua kore katoa ko tenei, i reira ko te pēhanga pai, me osmotic, me te toto, a ... kawea ratou te tokomaha, enei tenge katoa. I muri mai, Heoi, taka katoa ki wahi, engari te whakawa i te huinga Ipurangi, ngā pātai i runga i ngā āhuatanga rerekē o te "pēhanga" o te ariā kua, he a ka waiho. Na he aha te mea te reira - te pēhanga?

Ko te tikanga mahi o te "pēhanga" o te ariā takoto i roto i te meka e tenei āhuatanga mana motuhake - te kawenga ia rohe wae. Tetahi ahanoa a tawhio noa tatou, i nga wa katoa "tautoko", e e te pēhanga ki runga ki tetahi mata - te tepu, he matapihi, e tu, ara. Me pēhea te ki te whakatau ko wai te mea he pikaunga nui i runga i te ara - te tank ranei e haere ana i runga i taua mea te tangata? Ko tenei te wahi i te ariā o te tautururaa i te tinana rahinga "pēhanga", tatau nei i runga i te pūtake o ētahi atu rahinga tinana. Ki te mahi i tenei, whakatau i te taimaha o te ahanoa me te rohe o tona tautoko. Taumaha wehea e te tapawha me te tiki i te uara pēhanga - te rahi o te taimaha ia rohe wae o, mea, he hēnimeta tapawha. Na e taea tatou te mea mo te tino e te mea atu "taumaha".

A e kore e mea i teie nei, e fokotu'u tuatahi e te "tīwae" o rangi kotahi henimita tapawha me te teitei o te 100 km, kei te conventionally whakaaro reira he teitei o te kōhauhau o Papatūānuku, ka karanga te pēhanga kōhauhau. Ki te ki te tiketike o te taumata kore tangohia moana o te ao, te uara ā-tau o te pēhanga kōhauhau Ratm, kua huaina hoki a reira nui barometric ki e pā ana ki te 1 kg / cm sq. Reira na tupu mua e tenei rahinga tinana fakaofo - he rite ki te 1 kg / cm sq kotahi huru. - te mea e rave rahi Momo. I roto i ngā, i te kē mehua whakamahia whānuitia i roto i mitamano o mēkuri - 1 huru ōrite 760 torr I te teitei rerekē i te whenua, ko te rerekē "malohi" tīwae o rangi, me te pēhanga whanganga e te inenga, me te huringa i roto i te teitei te huri. Hei tauira, i te teitei o te pēhanga barometric 5 km ko 405 mmHg

Whakaröpütia Ētahi atu ingoa kōwhiringa Pressure rite ki to ratou hononga ki te inenga. Hei tauira, noa whakamahia i roto i te mehua toi mehua pūrere te pēhanga mehua. Faaotiraa me ngā oro, whakaaro nei te pēhanga nui i roto i te whānuitanga i runga, me te tohu ona Rati barometric. I roto i te tono hangarau maha whanganga ïa overpressure.

Pea iti iho i te pēhanga kōhauhau? O te akoranga, i roto i nei take e karangatia ana ko te korehau. mārua pūmau - te pēhanga rite ki tino kore - e kore e iti iho tupu. Na reira, ki te tango tatou i te reira rite te wāhi tīmata, ka karanga tetahi pēhanga nui atu i te kore te he tino, ka rerekē i te kore ki tetahi uara, ka tohu i ona Manpower.

Pehea e taea te tatau i te taikaha pēhanga? Ko te tātai mō te tātai i te pēhanga pū ko o te puka:

Manpower = Ratm + Rati

No reira e kore he uaua ki te tātai i te pēhanga i te taikaha, rite te rerekētanga i waenganui i:

Rati = Manpower - RATM

Pressure, he faaiteraa tātari ohie, kāore, kua he maha nui taua o waeine ine e mahino tohunga anake ratou. Ko te whai hua te nuinga o enei ko te pae, Pascal, kg / sq cm. me pärönaki ona ki arohere hecto mega, Giga.

Ko te SI kōwae o te pēhanga - Pascal - ko te kaha o tetahi Newton i runga i te wāhi o te kotahi mita tapawha. I tahaki, te n / m. he taua uara iti whakamahia e te i roto i te mahi tona pae pārōnaki i te mea āhua 100 kPa 750 mm ranei HG, i.e. tata 1 kg / sq cm. Tenei te, kua katia reira te porowhita - ano mai matou ki te kōwae pēhanga ataahua, me te whiti - huru. Heoi, i roto i tenei take, e kiia ana ko "huru hangarau", me e he maha tenei kotahitanga, i te kaha o te peu, whanganga te pēhanga i te taikaha te. He rārangi oti o ōrite whakamahia i roto i ngā wāhi rerekē o te pēhanga e whārangi o tā pai.

Ko na ohie, me te kua tupu te pēhanga mārama ki te pakari whiwhi o ratou ake wae. Otiia kahore he take ki te māharahara - i reira he tonu he pukapuka tohutoro pepa ipurangi ranei ....