Chiyambi ndi Chisinthiko cha Nsalu Zobisala

Lingaliro lakubisaunayamba kalekale, kumene alenje ndi ankhondo ankagwiritsa ntchito zinthu zachilengedwe pobisala. Komabe, nkhondo yoyamba ya padziko lonse inali pa nthawi ya nkhondo yoyamba ya padziko lonse pamene anthu anayamba kugwiritsa ntchito njira zosiyanasiyana zobisa zinthu komanso nsalu. Zapangidwa kuti zipewe maso a mdani, koyambirirakubisaMapangidwe anali ndi mawonekedwe akuluakulu, osakhazikika m'mamvekedwe osamveka, opangidwa kuti asokoneze mawonekedwe aumunthu ndikuphatikizana ndi malo. M'kupita kwa nthawi, machitidwewa adasintha kukhala mapangidwe apamwamba kwambiri, kuphatikizapo sayansi yamitundu, optics, ndi matekinoloje apamwamba osindikizira.