Lee ebe e dere ya n'okpuru ebe a ma zaa ajụjụ a na-eso ya n'otu asụsụ ahụ e dere ya n'ebe ahụ: Ebe e dere ya: Newton's cannonball bụ nnwale echiche nke Isaac Newton ji chepụta na ike ndọda bụ ihe zuru ụwa ọnụ, na ọ bụ ya bụ isi ihe na-eme ka mbara ala na-agagharị agagharị. Ọ pụtara n'akwụkwọ ya bụ A Treatise of the System of the World. Ajụjụ: Olee nnwale echiche Newton ji wee ruo na nkwubi okwu na ike ndọda bụ otu ihe n'ihe niile?
Ngwá agha Newton