Kutheni na nokuzala izilwanyana isithuba kunye nabantu?

Kutheni na nokuzala emajukujukwini? Lo mbuzo Ukwacinga izazinzulu iminyaka engamashumi amaninzi. Yintoni na isizathu? izifundo ezininzi sele lwenziwe, eyaqinisekisa ukuba nokuzala indawo akunakwenzeka. Kakade ke, ukukhulelwa zinokwenzeka. Kodwa ukuba umntwana uya kuzalelwa usempilweni?

Uphando lokuqala

Ngoko kutheni na ukuba ezizalayo emajukujukwini? Uphononongo zokuqala zaye zenziwa ngexesha eSoviet. Abathathi-yokuqala ulingelo aba nempuku. It nje Kwenzeka ukuba ezi zilwanyana ziye baba ngoovulindlela. Amabuzi wakhulelwa emajukujukwini, wanikela inzala iphila ngokupheleleyo. Noko ke, abadala kufa ngokukhawuleza kakhulu emva kokuqala alimele azalwe. Buyela on Earth, iimpuku nobunzima. Kuqala kwinto zonke, Young akwazi ukuhamba ngokuqhelekileyo, kuba kwasekwa neemeko weightlessness.

Xa isithuba, watyelela zizilwanyana ezininzi. Kwathi ke, ukuba iinkawu nezinja babona umhlaba wethu orbit ngaphambili kakhulu kunokuba abantu. The French ezazithunyelwe emajukujukwini, nokuba iikati. Izilwanyana yokuqala yabhabha phezu inyanga, baba Ufudo.

Zonke yemifuniselo lwenziwa ukuze ufumane iimpendulo kwimibuzo emininzi. Yaye nje ukuba nokwenzeka ephaphazela womxhuzulane zero. Yemifuniselo kwafuneka ukuba uphendule umbuzo kutheni akunakwenzeka ukuba yokuzala esithubeni.

Imisebe space

Iingcali ezivela NASA ezaqhutywa iimvavanyo kwaye zangqina ukuba akunakwenzeka ukuba Veliswa esithubeni. Izilwanyana eziye wakhulelwa womxhuzulane zero, hayi kuphela nokushukuma ngesiqhelo, abazange bakwazi ukuvelisa inzala. Oku kwabonisa ukuba ngephupha zokuhlala kunye ngokoyisa iiplanethi ezikude kwaye uhlale amaphupha logama nje abantu akuthethi ceba ukhuseleko anti-radiation ukuba baxhomekeka.

Uphononongo lubonise ukuba amasuntswana Proton rhoqo kuchaphazela umntu emajukujukwini. Kwaqondwa ukuba radiation sikwazi "abilayo" iimbumba emfutshane ngaphandle koMhlaba. izizukulwana zexesha elizayo imane akakwazi nokuzala.

Kuza kwenzeka ntoni ukuba abantwana yamitha emajukujukwini

Izazinzulu ziye zagqiba ukuba intombazana, lowo engekamithwa isithuba, zamaqanda sibulawa onke amaqanda emva sikarhulumente akuqolanga. Kodwa akhiwa kule umbungu sele iinyanga ezintlanu ekhulelwe. Le nyaniso obacaphukisayo. Ngamanye amazwi, le amantombazana nje ayiphumelelanga. Ukongeza, imitha kwISithuba kakhulu asifanele umgangatho madlozi. Kuye kwaqatshelwa ukuba esinika amandla radiation kunye nomonakalo yamasuntswana sperm kakhulu. Ngenxa yeenguqu ezinjalo yonke inokuqondwa abantwana abaneziphene. Yiyo loo nto akunakwenzeka ukuba yokuzala esithubeni.

amasuntswana Hazardous nemitha

Kwisithuba nendalo iphela, kukho izinto ezininzi eziphazamisayo. Phakathi kwabo ime phandle yemisebe cosmic, oluphuma kwiintlobo ngeentlobo zemithombo yolwazi, kwakunye amasuntswana ukuba ubhabha usuka ilanga. Mhlawumbi abaninzi kuni bayazi ukuba isithuba ngaphandle ojikeleze umhlaba zabiwa protons esinika amandla, kunye ion enzima, nto leyo ngokulula ilimaze DNA. Awu, nkqu ubuchwepheshe bale mihla musa ukuvumela ukwenza isiphekepheke ezaziza kukhusela umzimba womntu kwimiphumo emibi radiations ezahlukeneyo amasuntswana.

Izazinzulu zithi ukuba naluphi na uhambo ezinzulwini indalo iphela emva kanye ekuqaleni. Veliswa kwisithuba nje akunakwenzeka kude akukho ezikhethekileyo ukhuseleko kwimitha. Mhlawumbi, le bugcisa ziya kubakho kwixesha elizayo. Okwangoku, i-DNA ezifunekayo kuphuhliso iiseli zomzimba womntu, inovakalelo oluphezulu ukuba imitha, leyo ndawana. Ukuhlola okwenziwa kwizilwanyana lubonise ukuba inzala emfutshane ngaphandle ojikeleze umhlaba ukuba akanalo amaqanda eziphilayo. intshabalalo yabo kwenzeka ezintathu 2 okanye 3 yokukhulelwa.