Elementary Charge

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@jhyland87 5 жыл бұрын

I love how clever and original these guys had to be back in the day to come up with such unique experiments. One thing I really like doing is researching the history behind modern day equipment (as well as the experiments they are used for), such as particle accelerators/detectors, MRI machines, nuclear equipment, etc, and work my way back through the history of other experiments and discoveries that made the most recent science possible. Don't get me wrong, the breakthroughs made in modern times are very awesome, but these guys made amazing breakthroughs with extremely limited technology and a fraction of the resources and knowledge that are available today. Millikan was able to accurately measure the charge of a single electron to within less than 1%... in 1909! That's just insane! Pure genius!

@vijaynyaya6603 4 жыл бұрын

Millikan quantized elementary charge by measuring the distance covered by an oil drop in an electric field when he varied the voltage. We define Volt as Joules(Work) per Coulomb. *Two Questions:* How did he measure voltage back then? How exactly he calculated the elementary charge?

@wheelsandwings28 Жыл бұрын

You first said that he hovered the charge but then you also said he was considering viscosity. If drop was not droping down or oving upward then what was the need of viscosity there. Was it only for measuring the mass of oil drop by letting drop fall with fields turned off. And after measuring mass he turned field on and observed the motion. In case of positive charge it can't hover. So in that case he must study fall of charge not its stationary condition.

@mohankanth6643 7 жыл бұрын

True heart fan of paul anderson sir

@nineeleven9455 6 жыл бұрын

Ask anybody to prove this and watch them do a dance or refer to nonsense, or just run away. This guy claims he used math to determine an insanely small 'quantized' charge, and people believe him. Wow. Blind faith.

@mustaphaalkhafaaf5512 4 жыл бұрын

Thanks , perhaps we need to understand why Oil in particular ? what is the reason and the different charactristcs that Oil has and others dont have ... please feel free to comment Thank you .

@abhaypal5155 3 жыл бұрын

actually Millikan first chose water for the experiment, but since the water droplets would evaporate in a few seconds, so it will allow a very small time for experimentation, oil on the other hand doesn't evaporates faster as they are non-volatile. The suggestion of oil instead of water as the drop was given by Harvey Fletcher. You should read about the history of this experiment and the number of papers associated with it and Why only Millikan got the Nobel prize for this?

@mustaphaalkhafaaf5512 3 жыл бұрын

@@abhaypal5155 Thank you Scientifically that make sence I will take your advice and read further .. have a good day and thank you for your comment. UK

@vijaynyaya6603 4 жыл бұрын

I hope if Mr.Anderson could provide additional resources to dig deeper on the subject in the video description.

@proofVid 10 жыл бұрын

would the elementary charge quantization be affected if the gravitational pull changed or if the viscosity of the air was different? is it the same on the moon as it is here on earth?

@cedricproper5256 6 жыл бұрын

I'm just guessing at the same question. What if the quantity of the oil droplet was worked out before hand? The specific gravity of the oil can be measured and the droplet size averaged. So then the real question is what difference did the charge create such that a droplet of oil can defy the known law of gravity? I suspect this led to the discovery of the Biefeld Brown effect.