Kakensa Isaac Newton yali munnassomabutzimbe (physicist) era omubalanguzi (mathematician) eyannyonnyola obulungi ensibuko y’ ebigereeso by’essikirizo (gravity) n’okuva (motion). Yagereesa nti (he theorized that) “empagi ewaniridde Seng’endo mu bwengula y’esonga y’emu lwaki bw’okanyuga ekintu kidda ne kigwa wansi. Kiva ku ssikirizo (gravity)”.