Brownian motion

1908

Brownian motion

The book of science

Tom Sharp

Robert Brown, Ludwig Boltzmann, Albert Einstein, Jean Baptiste Perrin physics

Brownian motion

Particulate energy

Solids

One foundation of Einstein’s formulas for the size and number of atoms in a gas is Avogadro’s Law, which states that the masses of the same volume of different gases at the same temperature and pressure are proportional to the weights of the atoms or molecules in the gases. The number of particles in one mole of a substance (a big number) is known as the Avogadro constant, and a mole of a substance is this number of particles of the substance.

Eventually, all these matters seem circular.

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