article_snippet: Scientists at the German Nation Metrology Institute (PTB) in Braunschweig have come up with an ingenious way to create a more exact measure of mass, which involves counting the number of atoms needed to make up a kilogram, instead of relying on a piece of metal.
article_snippet: Scientists at the German Nation Metrology Institute (PTB) in Braunschweig have come up with an ingenious way to create a more exact measure of mass, but Scientists at the German Nation Metrology Institute (PTB) in Braunschweig first need to perfect Scientists at the German Nation Metrology Institute (PTB) in Braunschweig technique by counting the atoms in the world's rounded spheres (pictured)
article_snippet: The aim is ‘to produce the connection between the mass of the sphere and the mass of an atom,' by counting the atoms.
article_snippet: Physicist Peter Becker told The Local:
article_snippet: ‘The Local work out the number of atoms in the sphere, weigh the sphere and therefore work out how much an atom weighs.
article_snippet: This mathematical method has enabled the mathematicians to discover the Avogadro constant.
article_snippet: incredibly pure silicon said: 'Already at this point, PTB scientists miscount only twice every one hundred million atoms.
article_snippet: ‘The goal is to miscount only by one atom for every one hundred million atoms.
article_snippet: The method could be used to work out how many atoms are needed to make up a kilogram, but leaves the challenge of counting how many atoms make up an object.
article_snippet: The researchers who created the sphere know the dimensions of the sphere and the individual layers of lattices, so The researchers who created the sphere are able to calculate the number of atoms by dividing the larger dimension by the smaller one.
highlights_snippet: German scientists are working out how many atoms are in a certain sphere .
  
highlights_snippet: Method should allow German scientists  to redefine the kilo based on the mass of atoms .