The Cavendish experiment and G

A description of the Cavendish experiment and the gravitational constant G, as well as a demonstration of the experiment using time lapse.
Link to derivation explanation:

[Ideas-xvlb]

Flat Earthers: The Cavendish experiment has never been replicated

Random Highschool Girl: Let me introduce myself

[arsalanjamal]

Hey, I just wanted to let you know that our AP physics teacher Mr. Fejzo showed us this video for reference of recreating the Cavendish experiment and found it very insightful. Thank you for allowing us to receive bonus points and your accurate and well designed procedure.

[swapnilbankar]

This caused me a one sided love for Physics!

[arctic_haze]

A great experiment. I am a physicist but I would not think the Cavendish experiment may be performed at home, actually on a bed. The only nitpick is you gave four significant digits in the result. It should be just one digit: 9 times 10 to the power of -10. Your result was off by one order of magnitude but you clearly showed the gravitational force at work! Good job!

[LetsFindOut]

this was amazing! i appreciate the time you took to do the experiment, draw AND edit the video.

[Astral]

G, This was insightful. I almost felt drawn to the video.

[maestrosk]

This is freaking awesome! Congrats on that result despite the error it's great dedication!
Damn I have to work harder on my research if youngsters like you are coming up!
Cheers

[SigmaRook]

I always thought that Cavendish experiment had to be performed with a extremely rigorous experimental set-up. Then I watched your video and you just did the hole experiment in your bedroom and managed to make all the measures and calculations to get a very close value to the universal gravitational constant! To me that's impressive. Bravo!!

[bmoyle]

Absolutely loved the video (as well as the shorter version) -- keep up the great work! :) (and ignore all the trolls)

[ale.salas.m]

Awesome video. Thanks for posting. Disregard the crazy people and keep doing science!!!

[EvilHenchman]

Awesome video! I think you did a great job of explaining a difficult concept and experiment. I recently replicated the Cavendish experiment myself as part of a college lab course and I think your result was excellent considering your setup. The best scientists I know go beyond what is written in textbooks to understand the world around them. Keep up the great work!

[jamestickle]

Really nice explanation. I’m an astronomy teacher at a college and I’m linking your video in a lecture as an added resource. Good work!!

[robberg]

This seems to me to be a large % error with the accepted value, but big ups for trying

[skboarder]

This is a wonderful video, and you are exceptionally smart. You are also handling these comments with a level of maturity beyond your years. Bravo! I hope you go on to have a successful career in the sciences!

[genevievecallahan]

From one Genevieve to another . . . WOW!! I hope to be as awesome as you are! You are truly an inspiration! Thanks for this explanation AND demonstration -- LOVE IT!!

[yellowlynx]

It's over 4 years, and I hope you are in a good university pursuing science.

[Albeit_Jordan]

Fantastic video!
I'll really have to expand upon my knowledge of mathematical terminology to truly grasp the complexity it reaches, but an enthralling watch nonetheless!

[dr.emmettbrown]

She is deliberately ignoring the air in the room and the Bernoulli's principle. The atmospheric pressure makes the masses approach each other when they are already close. Bernoulli's principle explains this phenomenon. The air pressure between the masses decreases (when the air moves) and a mechanical suction appears (not an attractive force between masses). Airplanes do not fly because their wings are attracted upwards by a mass, but because the pressure at the top of their wings decreases with respect to the pressure at the bottom. Bernoulli's principle.

[markpointer]

Hi. First up, well done!! You made a really great vid about one of sciences' most debated and analysed experiments, yet one of its least known. It was interesting, modern and colourful. And you are obviously a really smart girl, that's for sure! Just the way you stated the 'units' of whatever you were discussing (like 'G' which is measured in one of the weirdest units I've ever seen!), goes to show, you are very smart and science-minded.

I just had one quick question. At about, 0:56, you mentioned something like "I referred to our AP system (or very similar; I'm not American, you see. I'm British!). I'm curious, what does this mean? And last thing: if people ever say to you "gravity is just a theory, it hasn't even been proven yet", or "gravity does no exist, it's still only a 'theory'..", or similar, please, ignore them as they have no clue What they are talking about. They are clearly confused as to what a scientific "theory" actually is. I would honestly just ignore them. Without being rude. They are just poorly educated.
Well Done, again!!!

[Doesnotmatter]

saw millions of videos but you have the answer... Great stuff