Kugwiritsa kuthamanga - Kodi ndi mmene ...

Nthawi zina, pokumbukira kuti zaka sukulu, kukumbukira nkhani zasayansi, sayansi. Iwo anawonjezera kaonedwe wanga kwa malire kudzera ankadziwa ichi kapena mfundo zina thupi. Ena mwa iwo sanafune "mizu". Mwina chifukwa nthawi zambiri anafuulira ndi tanthauzo la mphunzitsi alibe yeniyeni thupi image, koma anali, poyamba, mfundo chabe.

Apa M - zonse zili bwino. Nthawi, nayenso, akuoneka kuti ali ndi mafunso ayi, wotchi - amakonda ubwana chidole, bango-tock, mwakhama. Meter, ora, chachiwiri - chikhalidwe thupi la "kukula" mu chikumbumtima. Koma kulingalira 10 Km mpweya "udzaphwanya" pa inu usiku ndi usana, osatopa ndipo anaitana m'nyimbo ndi zachinsinsi - kuthamanga mumlengalenga. Ndipo likukhalira kuti izi si zokhazo, pali kuthamanga zabwino, ndi osmotic, ndi mwazi, ndi ... kubweretsa iwo nambala mavuto onsewa. Komabe, patapita zonse igwera mu malo, koma kungoona maonekedwe Internet, mafunso pa mbali zosiyanasiyana za "kuthamanga" wa lingaliro akhala, ali ndipo adzakhala. Nanga izo - kuthamanga?

Tanthauzo lenileni la "kuthamanga" a chiphunzitso cha kwagona kuti yeniyeni mphamvu khalidwe - katundu pa malo unit. chinthu chilichonse otizungulira, nthawi zonse "amapereka" omwe amaika kuthamanga pamwamba iliyonse - tebulo, zenera sill, kuima, msewu. Kodi kudziwa amene ndi katundu wamkulu panjira - thanki kapena kuyenda pa munthu? Apa ndi pamene lingaliro la kuthandiza thupi kuchuluka "kuthamanga," chomwe ndi kuchita masamu pa maziko a ena zedi thupi. Kuti tichite zimenezi, kudziwa kulemera kwa chinthu ndi dera thandizo ake. Kulemera akufufuta lalikulu ndi kupeza phindu kuthamanga - chiwerengero cha kulemera pa wagawo dera, kunena, centimeter lalikulu. Tsopano ife tikhoza kunena motsimikiza amene ndi zambiri "kukanikiza".

Ndipo musanene tsopano, amene poyamba adati "mzati" ya centimeter mpweya umodzi lalikulu ndi kutalika 100 Km, izo conventionally ankaona kutalika kwa dziko lapansi, wotchedwa mumlengalenga kuthamanga. Ngati kutalika kwa mlingo ziro kutenga nyanja dziko, phindu n'zosangalatsa kumva za kuthamanga mumlengalenga Ratm, limatchedwanso barometric kuchuluka kwa 1 makilogalamu / masentimita sq. Izo zinachitika mbiri kuti ameneyu thupi kuchuluka - mpweya umodzi ndi wofanana ndi 1 makilogalamu / masentimita sq. - iwo ali prototypes angapo. Makamaka, ankagwiritsa ntchito muyeso zosinthika mu millimeters mankhwala enaake oopsa - 1 m'mlengalenga liri 760 torr Pa msinkhu wosiyana dziko lapansi "yopondereza" ndime ya mpweya ndi osiyana, ndi kuthamanga kuwayeza barometer, ndi kusintha okwera zikusintha. Mwachitsanzo, pa msinkhu wa 5 Km barometric kuthamanga ndi 405 mmHg

Other options Anzanu maina ali m'magulu malinga ndi ubale wawo ndi barometer wa. Mwachitsanzo, amagwiritsidwa ntchito pa luso n'zotsimikizira chipangizo miyeso kuthamanga n'zotsimikizira. Khama ndi phokoso lomwe imatengedwa kuthamanga kwambiri mu osiyanasiyana pamwamba ndipo amasonyeza barometric ake Rati. Mu ntchito luso zambiri anayeza ndendende overpressure.

Mwina zosakwana kuthamanga mumlengalenga? Kumene, zimene zinachitikira iwo akutchedwa kuyamwa. Mtheradi zingalowe - kufinya wofanana mtheradi ziro - zochepa sizichitika. Choncho, ngati ife izo monga poyambira, savutitsa kuposa ziro amatchedwa mtheradi, ndipo umasiyana ziro kwa laphindu, ndi kuwayimilira anthu oti ake.

Kodi kuwerengera owonjezera kuthamanga? Chilinganizo cha kuwerengetsa ndi kuthamanga mtheradi ndi wa mawonekedwe:

Anthu oti = Ratm + Rati

Choncho n'kosavuta kuwerengera kuthamanga muyeso, monga kusiyana:

Rati = anthu oti - RATM

Anzanga, kukhala mawunikidwe mfundo, mwatsoka, ali ndi chiwerengero chachikulu ngati mayunitsi muyeso kuti akatswiri yekha kuwamvetsa. Kwambiri zothandiza awa ndi bala, Pascal, makilogalamu / sq cm. ndi ena ofanana zake ndi prefixes Mega hecto, giga.

The SI unit wa kuthamanga - Pascal - ndi mphamvu ya Newton wina pa malo mita imodzi lalikulu. Ndi lokha N / m. chotero zochepa kuti ntchito kuchita bala lake otumphukira amene ali pafupifupi 100 kPa kapena 750 mamilimita Hg, i.e. pafupifupi 1 makilogalamu / sq cm. Apa izo, bwalo adatsekedwa - ife tikufika okongola ndi ndakatulo wagawo kuthamanga - mlengalenga. Komabe, mu nkhani iyi, umatchedwa "luso mpweya" ndi kuti mgwirizanowu nthawi zambiri, ndi mphamvu ya chizolowezi, kuthamanga owonjezera chimaonekera. A mndandanda wa mufananize ntchito m'madera osiyanasiyana kuthamanga amatenga masamba kusindikizidwa chabwino.

Kuti ndi mophweka ndi kuthamanga bwino wakula mu ndikuyenda opiringizidwa mayunitsi zawo. Koma palibe chifukwa kudandaula - pali buku imathandiza umboni kapena Intaneti ....