Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: James Prescott Joule (; 24 Disemba 1818 <unk> 11 Ọktọba 1889) bụ onye England bụ ọkà mmụta ahụike, onye mgbakọ na mwepụ na onye na-eme biya, amụrụ na Salford, Lancashire. Joule mụrụ ọdịdị nke okpomọkụ, ma chọpụta mmekọrịta ya na ọrụ igwe (lee ike). Nke a dugara n'iwu nchebe nke ike, bụ́ nke dugakwara n'iwu mbụ nke nkà mmụta okpomọkụ. A na-akpọ joule, nke bụ otu ike nke SI, n'aha ya.  Ajụjụ: Olee iwu mbụ sitere n'ọganihu nke iwu nchekwa ike?
iwu nke thermodynamics