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- Manufacture a sphere of mass one kilogram from a single crystal of high purity silicon.
- Measure the sphere's diameter.
- Measure the atomic spacing in the crystal structure using X-Rays.
- Using this information compute the number of atoms in the sphere.
- Calibrate the sphere against the International Prototype Kilogram
- Use the above information along with the atomic weights of carbon and silicon to calculate the Avogadro number.