The Millikan oil drop experiment is called the most beautiful experiment in physics, but I have never heard of this statement before, and what impressed me more deeply about the Millikan oil drop experiment is that the essence of this experiment is actually subjective. The final data of the Millikan oil drop experiment was actually screened by Millikan, although the data changed by Millikan's screening was not too large, but this was still his own deletion, so it can be said that the Millikan oil drop experiment was cheating on the other hand.
According to Baidu's results, the so-called most beautiful physics experiment is nothing more than a magazine's own evaluation, and has not been recognized by everyone. However, Millikan also successfully won the 1923 Nobel Prize in Physics for the oil drop experiment, which was won by his first measurement of the charge of an electron.
Millikan measured the amount of charge of a single electron by balancing gravity and electricity, allowing oil droplets to suspend between two electrodes. Millikan then calculates the total charge of the entire oil droplet based on the known electric field intensity. After many oil drop experiments, Millikan found that the total charge value of all oil droplets was a multiple of a number, so it was determined that this number and 1.592×10^-19 coulomb, which is the charge of a single electron. There is a slight gap between this and the amount of electron charge we know today, so this experiment is also flawed.
When Millikan did oil drop experiments to measure the charging power of electrons, the reason why it deviated from the current accurate value was because Mirigan used an inaccurate air viscosity coefficient value at that time. And later scientists, because Michigan has measured the amount of charge, just when their calculated data is higher than Michigan, think that they are wrong, and when they calculate the results similar to Michigan, they will not carefully check because of relaxation. But in general, Mirigan's oil drop experiment has made a great contribution to mankind. Although There were some flaws in Millikan's experiments, they were flawed in the end.