The world’s roundest object made of sillicon, becomes the new definition of a “KILOGRAM”. Check out the history of “KILOGRAM”.

Check out the video if you have ever used a “kilogram” to measure something. The “reference kilogram” is a lump of metal in France, the kilo being the only metric measurement not based on some objective standard. A project is underway to replace the kilo with something independently reproducible: perfectly spherical balls of based on… Read More The world’s roundest object made of sillicon, becomes the new definition of a “KILOGRAM”. Check out the history of “KILOGRAM”.