<prompt> Pedzisa mutsara unotevera: MuKutengesa Sayenzi: Nzira Iyo Mapepanhau Anofukidza Nayo Sayenzi uye Tekinoroji, Nelkin akaongorora zvinomanikidzira zvetsika izvo zvinoumba mushumo wesayenzi mupepanhau rakakurumbira. Kunoratidza kunetseka kwake pamusoro pesayenzi kupfurikidza nekokorodzano yenhau. Akataura kuti masayendisiti nevanyori venhau vane zvinangwa zvakasiyana zvinokonzera kushayikwa kwokufambira mberi kwesayenzi. Tsika yezvemapepanhau uye kumanikidzwa kupindura zviitiko zvinokonzera kusaziva kana kunyanyisa kurerutsa kwenhau dzesainzi mumapepanhau, zvichimutsa kunetsekana apo kufambira mberi kwesainzi nenjodzi semuenzaniso, AIDS,  <response>: Three Mile Island, njodzi yechikepe chinonzi Challenger zvakanyanyisa. 