Abacwaningi uzama ukuthola ukuthi kungani osomkhathi ukubuyela eMhlabeni angaboni kahle

Cosmonauts futhi osomkhathi uqhuba isikhathi eside ku iziteshi esemkhathini, ezimweni eziningi wabuyela Earth kusukela umbono liwile. Kuze kube manje, ososayensi ayikwazanga ukuthola imbangela yalesi simo, okusho ukuthi esongelwa - impilo kubantu abazilungiselela ekunqotshweni emkhathini esikhathini esizayo. Mhlawumbe, manje iningi lososayensi lapho inkomba lomkhuba.

Amaphesenti angu-80 Ukuwohloka osomkhathi

Abacwaningi e-University of Miami bathole imbangela eholela ukulahlekelwa esinqunyiwe mbono. Kulinganiselwa ezihlukahlukene, yempilo esweni emuva Earth amaphesenti angu-80 isikhala bamazwe. Abaningi babo bawe umbono ephelezelwa nomfutho wegazi ophezulu intracranial. Nokho, ososayensi kusukela Miami kwakungafanele ukulungele ngqo ukuxhumanisa imihlola ezimbili nje abanayo inkomba khona. Ngaphambili, ukufunisela lwenziwe emphakathini esingokwesayensi sokuthi ketshezi weightlessness ayikwazi isabalaliswe umzimba njengoba enza ku-Earth. Kubonakala sengathi lezi ezizathwini anesisekelo yangempela.

Yini ebangela iso ingcindezi?

umlobi oyinhloko Noam Alperin uthi izimo adonsela phansi Emhlabeni adonsela phansi ukudansela isiginci sakhe izinto eziwuketshezi phansi emzimbeni. Nokho, ezimweni of weightlessness waphawula uketshezi ukufuduka in kolunye uhlangothi (ekhanda). ukugeleza fluid ubuchopho kubangela okhushuliwe ingcindezi intracranial futhi lokwabiwa kabusha yayo nezinyawo zone kuphakamisa ukwanda ingcindezi intraocular. osomkhathi Iningi kokuqhuba weightlessness izinyanga, wabuyela Earth nabantu astigmatism. Ngeshwa, ezimweni eziningi, lesi sifo kunemiphumela engelapheki. Ngamanye amazwi, umbono zezinkanyezi siya siba sibi kakhulu ngoba konke ukuphila.

Ososayensi ukugcizelela ukuthi lesi simo sibangelwa esingokwemvelo kuphela labo bophezela ukuhlala phezu sasemkhathini isikhathi eside. UDkt Alperin wathi Ukuwohloka osomkhathi wahlanganyela ezindizeni esifushane, zalotshwa.

ukucwaningwa okuningiliziwe

Ngenxa leqembu labacwaningi ayengebona uketshezi lomzimba. Ososayensi base-Miami ngokuyinhloko unesithakazelo cerebrospinal fluid. Le into senzelwe ukuvikela asebuchosheni nomgogodla kusukela vibration futhi ukushaqeka. I ukuhanjiswa ivolumu uketshezi nezinyawo iso kuphakamisa Ukuwohloka umbono (wabuka lezinto babe usongene kanye esilufifi). Inflow of cerebrospinal ventricle fluid kubangele ingcindezi intracranial. Kuyaphawuleka ukuthi kakhulu izicubu zangaphakathi yalezi zinguquko aye atholakala.

izindlela Ukucinga ukuzivikela

Imiphumela yocwaningo banikezwe emhlanganweni waminyaka yonke we-radiology Society of eNyakatho neMelika eChicago. Ngokusho ososayensi, manje ukuthi ukwambula imbangela Ukuwohloka osomkhathi, kuyasiza ukuba ufune izindlela zokuziphindiselela aphume isimo. NASA ochwepheshe unentshisekelo yokuthola isixazululo ngokushesha ngangokunokwenzeka. Kuze kube yimanje, abasebenzi Indawo emela ihlele kabusha nemibandela weightlessness Emhlabeni, futhi ucwaningo olwengeziwe.