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Scientists Want to Define the Kilogram by Gravity—Not Electricity. They’re Onto Something.
Now, the kilogram is defined in relation to the Planck constant, the smallest amount of energy a photon can carry. With this constant, scientists can make ultra-precise mass measurements using the ...
Max Planck Society2y
Energy in packets – What did Planck discover?
It was 1900 before researchers succeeded in producing a comprehensive measurement of black-body radiation and the theoretician Max Planck established a radiation law that corresponded to these ...