Mezue nkebi ahịrịokwu a: A na-eji otu ihe dị mkpa nke na-eme ka isiokwu nke ebe ngosi ihe mgbe ochie ahụ pụta ìhè akwado alaka ụlọ ọrụ nke ọ bụla n'ime alaka ụlọ ọrụ ahụ. Ndị a gụnyere John Bull locomotive,
Greensboro, North Carolina nri ehihie counter, na a otu n'ime ụdị draft wheel. Ihe ngosi sitere na ihe ngosi ndị dịbu adị gụnyere Vassar Telescope nke 1865, ihe oyiyi George Washington, ụgbọ ihe mberede Red Cross, na ụgbọ ala site na njem Dumbo Flying Elephant nke Disneyland.