text: Aya sawatara usaha pikeun ngawanohkeun hiji watesan tina jalan fundaméntal atawa konstanta atomik: The kilogram is the mass which would be accelerated at precisely 2×10-7 m/s² if subjected to the per metre force between two straight parallel conductors of infinite length, of negligible circular cross section, placed 1 metre apart in vacuum, through which flow a constant current of exactly 6.241 509 629 152