D'Alembert
Uruhererekane rw'amatega rwongeraho inite imwe nyuma yo gutsindwa rukayikuraho nyuma yo gutsinda.
Mu nteruro
Ni uruhererekane rw'amategaingambaUruhererekane rw'amategaItegeko iryo ari ryo ryose rihindura itega hashingiwe ku bisubizo byabanje. Impererekane mbi ziryongera nyuma yo gutsindwa, inziza nyuma yo gutsinda.Soma byose → rubi rusanzwe ruzamuka gahoro kurusha izindi: amatega azamuka buhoro mu bihe byo gutsindwa kandi ntaturika. Igihombo giteganyijweimibareIgihombo giteganyijweAgaciro gateganyijwe gakubye amafaranga yose yategewe; igihombo mpuzandengo mu mukino umwe cyangwa mu gihe runaka.Soma byose → kiracyari 2,70% y'amafaranga yose yategeweamafarangaAmafaranga yose yategeweAmafaranga yose yategewe mu mukino umwe cyangwa mu gihe runaka, harimo n'intsinzi zongeye gutegwa. Nanone: handle, action.Soma byose →.
Jean le Rond d’Alembert, umuhanga ukomeye mu mibare, yizeraga ko igiceri gifite amahirwe menshi yo kugwa ku ruhande rumwe nyuma yo kugwa ku rundi. Uburyo bwitiriwe izina rye bwubakiye kuri iryo kosa.