However, we now know that a complete rotation of the Earth actually takes 23 hours, 56 minutes, and 4 | |
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The kelvin K is the unit of the thermodynamic temperature scale | This scale starts at 0 K |
The mass of an object is the amount of material it contains | The mole mol is a number that relates molecular or atomic mass to a constant number of particles |
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16 of the thermodynamic temperature of the triple point of water exactly 0 | From the gram, we get the rest of the metric units using the standard metric prefixes |
Therefore, a second is now defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.
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