Kunwisa kumanikidzwa - chii uye sei ...

Dzimwe nguva, murangarire kuti makore chikoro, kuyeuka nyaya kemisitiri, wefizikisi. Ivo vakawedzera Maonero wangu muganhu kuburikidza kujairirana ichi kana zvimwe pfungwa chaiko. Vamwe vavo havana kuda "midzi". Pamwe nekuti kazhinji zvakataurwa mune tsanangudzo mudzidzisi haana muviri mufananidzo chaiwo, asi vari, pakutanga, zvisiri pachena.

Pano M - zvose zviri pachena. Time, zvakare, sokuti kuva nemibvunzo, wachi - a kufarira youduku toyi, uite tock, nesimba. Meter, awa, wechipiri - kwomuviri hunhu "kukura" mu pfungwa. Asi fungidzira 10 km mhepo kuti "apwanye" pamusoro penyu masikati nousiku, nesimba, uye inonzi lyrical uye asinganzwisisiki - mumhepo kumanikidzwa. Uye zvinoitika kuti ichi hachisi zvose, pane zvakanaka kumanikidzwa, uye osmotic, uye ropa, uye ... nazvo nhamba, nemiedzo zvose izvi. Zvisinei, gare gare, zvose inowira panzvimbo, asi kutonga kubva Internet forum, mibvunzo pamusoro siyana enguva "dzvinyiriro" mafungiro zvave zviripo uye vachava. Saka chii - kumanikidzwa?

The hunoshanda zvinorehwa "dzvinyiriro" mafungiro iri chokwadi kuti ichi zvakananga simba unhu - mutoro muzana chikwata nharaunda. Chero chinhu zvakatipoteredza, nguva dzose "vachitsigirwa", iro anoisa kumanikidza chero pechiso - netafura, hwindo sill, mirai, mugwagwa. How kuona ane mutoro mukuru mumugwagwa - mota kana kufamba pairi murume? Ndiyo apo pfungwa yokubatsira mumuviri kwazvo "dzvinyiriro", iro rinowanikwa pachishandiswa dzimwe chaiko zvakawanda. Kuti aite izvi, kuona uremu chinhu uye nzvimbo rutsigiro kwayo. Weight yakakamurwa kwemugwagwa uye vawane kumanikidza mutengo - nhamba uremu chete Unit nzvimbo, muti, sikweya sendimita. Zvino tinogona kutaura kuti chokwadi ndiani kupfuura "zvenzara".

Uye regai ikozvino munoti, uyo pakutanga akataura kuti "shongwe" mhepo chete mativi sendimita uye kukwirira 100 km, zviri conventionally achinzi nekukwirira Dzenyika ezvinhu, inonzi mumhepo kuvafurira. Kana kukwirira razero chechetere kutora mumakungwa munyika, nhamba kukosha mumhepo kumanikidzwa Ratm, izvozvo Anonziwo barometric mari kuti anenge 1 kg / masendimita ba. Zvakaitika kare kuti ichi kunoshamisa wenyama kwazvo - imwe mhepo akaenzana 1 kg / masendimita ba. - ine prototypes akawanda. Kunyanya, zvikuru kushandiswa nechiyero musiyano mukuru millimeters pamusoro nemekiyuri - 1 muchadenga vakaenzana 760 torr At akasiyana kukwirira kubva Pasi "mhumhi" Shongwe mhepo vakasiyana, uye kumanikidza kuyerwa ari chaicho, pamwe kuchinja kukwira ari kuchinja. Somuenzaniso, pane imwe nekukwirira 5 km barometric nevamwe 405 mmHg

Other mazita nzira Pressure dzinoiswa maererano ukama hwavo chaicho. Somuenzaniso, yaiwanzoshandiswa unyanzvi geji mudziyo matanho ari geji kufurirwa. Kutsunga uye ruzha, iyo vaiona kunyanya kumanikidzwa vari siyana pamusoro uye kunoratidza ayo barometric Rati. In hwokugadzira mafomu kazhinji akayera chaiyo overpressure.

Pamwe zvishoma pane mumhepo kumanikidzwa? Zvechokwadi, umo zvakafamba anonzi Vacuum. Mhedziso Vacuum - nezvinodzvinyirira akaenzana kumhedziso razero - shoma zvikasaitika. Naizvozvo, kana isu uitore pokutangira, chero kumanikidza kupfuura razero anonzi Mhedziso uye zvichisiyana razero upi unokosha, uye vanomirira yayo Manpower.

seiko ngaaverenge zvakawandisa kumanikidzwa? The yemaitiro nokuti pakuverenga ari mhedziso kumanikidzwa kuri muchimiro:

Manpower = Ratm + Rati

Nokudaro hazvina kuoma kuverenga zvakawandisa kumanikidzwa, sezvo kusiyana:

Rati = Manpower - RATM

Pressure, kuva nyore Analytical okuti, zvinosuruvarisa ane vakawanda yakayerwa zviumbu kuti chete nyanzvi kunzwisisa navo kudaro. Inonyanya kubatsira izvi chihuri, Pascal, makirogiramu / ba cm. uye nomukaka ayo prefixes Mega hecto, giga.

The SI chairema kumanikidzwa - Pascal - iri simba rimwe Newton riri nzvimbo imwe mativi mita. Roga, iro n / m. kwakadaro duku rinoshandiswa tsika rinobva bhaa wayo mutengo riri anenge 100 kPa kana 750 mm HG, i.e. anenge 1 kg / ba cm. Pano zviri, denderedzwa akafumbira - zvakare tinosvika yakaisvonaka uye enhetembo kumanikidzwa chikwata - mhepo. Zvisinei, muchiitiko ichi, inonzi "zvekushandisa mhepo", uye kuti kubatana uku kazhinji, kubudikidza ajaira, zvakawandisa kumanikidzwa kunoyerwa. A pamazita enzanirana zvaishandiswa siyana nzvimbo kufurirwa kwakakwana zvinotora mapeji wakaisvonaka harichadhindwi.

Ndizvo saka nyore uye zvakajeka kumanikidzwa rakura kuva tangled inovhiringidza pachavo muzvikamu zvavo. Asi hapana chikonzero chokunetseka - tiine batsira bhuku kana paIndaneti ....