Cavendish Gravity Experiment Time Lapse Version 1
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- เผยแพร่เมื่อ 14 ต.ค. 2024
- Due to environmental problems (air conditioner turning on and off with vent blowing on this apparatus), results from this experiment are compromised. Here is a revised, improved version: • Cavendish Gravity Expe...
A qualitative demonstration of universal gravitation using a torsion balance. Unfortunately, this setup had too much uncertainty to be able to observe the desired changes. It also takes a really long time for any movement at all, so the observations one makes before seeing the high-speed video are tricky.
In the summer of 2018, I'll be building a large-scale apparatus in my home (where I can better control environmental conditions) which should allow me to make measurements precise enough to determine the value of the gravitational constant. Be sure to subscribe and click the notifications bell so you'll receive alerts as I progress through the build and testing of the new device. See the first video in that series at • Cavendish Gravity Expe... .
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Flat earthers: The bowling balls are paid actors
@@amdredlambda Did you experience Galileo experiencing the experience of the experiment?
@@amdredlambda lol no. My point was that Galileo's study's although brilliant, they are not all relevant to what we observe and understand today.
Make sure this experiment can lead you to calculate the so call gravitional coefficient is 6.674×10−11 m3⋅kg−1 first before accusing the flatearther. Otherwise the entire gravitional equation is wrong !
:D excellent !
Only a very special person would see that the suspended bar is moving left and right without any lead balls around, and then still believe that this is some type of accurate experiment LOL
Flat earthers:
*ANGERNESS NOISES*
It's a failed experiment. Read the description: "Due to environmental problems (air conditioner turning on and off with vent blowing on this apparatus), results from this experiment are compromised."
@@ruthazbor true but flat earthers can't deny the original experiment working perfectly
@@ruthazbor Physicist Charles Coulomb and Cavendish, 15 September 2020 - cloud.mail.ru/public/4MUd/Ao4WCYyFq
Physicist Charles Coulomb and Cavendish, 15 September 2020 - drive.google.com/file/d/1vBeRJDpISIo5eLOpJD_CliBN65DWsrpu/view?usp=sharing
Flat earthers are so good at coming up with dumb excuses, and are reluctant to demonstrate to them selves.
@@alexeycherepanov7943 You do not believe in mass?
Incredible stuff! I get gravity works, I use it every day sometimes to my disadvantage. Especially when I spontaneously and unintentionally verify it's existence from time to time. But to see it happening right before your eyes is very exciting. I can only imagine how Mr. Henry Cavendish must've felt!
this
That's very nice to see, thank you for sharing. Although it's a pretty well known fact that masses atract each other, it's still very amazing to see it happening with your eyes !
Love this experiment ... did it over fifty years ago in high school. We did it a bit more quantitatively. It's actually a torsion balance ... so the torsion of the wire needs to be determined. This is done by measuring the period of the oscillation without external masses. By carefully measuring the maximum deflection, the force of the gravitational attraction can be determined. Knowing the acceleration due to gravity (we did that a week earlier in class), and knowing the masses involved, from the three experiments we could get a good estimate of the Earth's mass.
Ideally, this should be done in a box to minimize air currents, etc. Does not need to be in a vacuum. Also, the weights should be as close to point masses as possible ... ie spherical and made of lead or something denser
The motion of the balance is caused by environmental pressure. No mass attraction!
@Aquariotp what's that?
@@callous21 The motion of the balance is caused by environmental pressure. No mass attraction! Sorry!
@@AquariotpI'm pretty sure he wanted you to explain what you mean by environmental pressure, not repeat what you already said... cause he read it ya know, not heard it. So he didn't need you to repeat it...🙃
@@jacobdad2742 Ok. Let's enumerate the elements of the experiment.
Starting from left to right.
Let's call the sphere on the left S1
Let's call the sphere on the right S2
Let's call the object on the left, O1
Let's call the object on the right, O2
We know that all these elements are subject to pressure from all directions.
In the external part of the 4 elements of the experiment, the pressure is equal to x.
Now observe that: the pressure from the inner sides between elements S1 and O1 is:
(PS1i + PO1i)/2 < x
x = Environmental pressure
PS1i = pressure on the inner side of S1.
PO1i = pressure on the inner side of O1
This occurs because in the intermediate region between S1 and O1, there is a null point, from which two pressures in opposite directions depart, and one presses for S1 and the other for O1.
Thus, the internal region between S1 and O1 is lower than the pressure of the anbient. Thus, the pressure x, on the outer side of S1 and O1, is greater than the pressure between the inner sides.
As the Sphere is bigger and fixed. the pressure x, on the objects, push them, towards the spheres until they touch.
If you apply even a very little force for adjustment it would be enough to move this given setup with an angular velocity 10000 times faster than due to forces due to gravitational forces of spheres.
I read in many physics books that Cavendish experiment gave a maximum torsion of 2*10^-4 degrees and that was measured in about 3 hour and the torsion was measured for a very fine quartz wire. I observe that it has given a torsion of about 9 degrees and in less than about 3 minutes and still has not stopped its motion. So that must have been because of the initial torsion given by adjustment.
Cavendish's lead balls had a combined weight of nearly a third of a tonne, fifty times what these bowling balls weigh. His experiment was confined inside a box free of air currents and observed telescopically from outside. I'd also worry about the possibility of static charge on the electrically insulated bowling balls and torsion weights. The electric force is more than 10^42 times the strength of the gravitational force, so you would not need much charge imbalance to make a large difference. The results of the experiment in this video look improbable to me.
@@ps200306 Assuming he's not measuring airflow, static charge would be my guess. Definitely not a measurement of gravity. This is also the reason why every physics teacher on the planet doesn't attempt this test.
@@Kevin-ht1ox don't know about static charge but agree this is a very uncontrolled test. As it happens, there _is_ a school/university version of this device (Google "PASCO gravitational torsion" for info and manuals) in the $1000 dollar range that can do this experiment reliably and calculate _G_ to about 5% accuracy. Still not for the fainthearted as it takes hours to set up, so you're not going to see it in a high school science lab.
I heard electrostatic is generally considered due to the origins of this torsion balance. So they find ways to avoid the electrostatic influence.
What is exactly the method used to avoid that? And is it actually a 100% functional method? How can we be sure of that? Or is it a deduction/assumption?
His walking near the device nullifies any results. Do they teach kids how to perform proper controlled experiments anymore?
Dan O It proves the point he is making.
How does walking affect this?
@@avrizadevano3502 micro vibrations around the experiments can cause the thing mooving thats sad but to have a viable experiment you need to touch nothing
@@MLpone That makes sense. Well Cavendish experiment needs a more controlled environment afterall
@@avrizadevano3502 yeah but in this case i don't think it makes a huge difference because the string is bount to the roof so the mouvements he makes can't make the whole thing mooving
How did you ground all components so they all have no charge?
A dilute salt spray could do the trick!
(Spray bottle held high)
Good point!
Okay I'm blown. I truly had no idea this was an actual experiment.
Yes, I was aware that mass has a correlation to gravity but never had I seen this done.
Look into this experiment more. The original story. It disproves this unscientific experiment.
I think he’s a bit shy on research.
Observing nano Newtons? .
There’s a reason Cavendish used an isolation booth and telescopes. And months of observations.
How would you rule out electrostatic forces?
While this is a valid concern, in fact, the torsion balance was used to measure and understand electrostatic forces by Coulomb some ten years earlier. But to do this experiment ideally the equipment would have to be earthed. (grounded for Americans). The video is just a "proof of principle" sort of thing.
I have a question on it. Was the acceleration between these two masses calculated and compared both in and out of a vacuum chamber? For instance, if electrostatic would be affecting the movement, in a vacuum chamber the acceleration should be somewhat reduced due to lower density of the air.
Once the comparison is done, could this acceleration reduction be justified to the entirety of the movement to the point that "if X density reduction caused a proportional Y acceleration reduction, then at some point of density reduction could cause the acceleration reduction to 0".
If there is such comparison and calculation, then it would certainly mean electrostatic might be influencing but not being the only cause to the supposedly mass attraction.
That wouldn't specifically prove the gravity as a 4th dimensional but it would be an evidence that indeed there is another force other than electrostatic one acting on these materials (just trying to be impartial to any other models such as the ones which would consider the ether for instance)
Great explanation/experiment. Ty. Maybe do a control where the balls on the same side. 5y too late I know
Consulta. Se puede realizar este experimento con una toma mas lejana y demostrar que no hay interferencia humana en ello. Caven...estuvo meses intentando esto y solo vio variaciones de 4mm con un catalejo..aca en 5min se movio 1 metro...puede verse algun video actualmente mas creíble y demostrar que nadie influye en el entorno..o sea como se hizo en ese momento.. gracias.
тут просто показывают притяжение масс, а Кавендиш высчитввал точное значение
There are too many variables for this experiment. We know that it is not being conducted in a vacuum so there is air movement, there is also vibrations from the Earth, there is heat that will move air too.
fuck your an idiot
Add that the earth is moving (Im not saying that because never proofed)
Douglas26 You sir are the idiot (and it’s ‘you’re’ not ‘your’ .............. IDIOT....)
Lol he's not a grammar nazi,...The dude is literally calling someone an idiot and made a grammar mistake. That's just pathetic.
Btw earth is flat.
@@daveyboi03
So flat the Sun just magically sinks in the ocean during a sunset.
Why did you touch it?!!!!
I'm going to drop this class because of this experiment.
@Shayne Rushton Yes you do have to guess since it is not a controlled experiment any number of variables could of caused that movement. The most prevalent being static attraction. Funny part is that this "experiment" has never been replicated in a controlled environment, or at least not in the last 200 years from all the research I've done.
@@magranera The Wikipedia article on this says it has been replicated and refined. I understood the Wiki entry to say that a similar method is now the standard way to measure G.
@@magranera What a load of horseshit. It has been done so many times in the recent years.
absolutely preposterous and completely insulting to the entire scientfic community.@@magranera
How did you determine that the air didn't push the ruler over?
He didn’t 😂
This doesn't show what you think it shows. You need to let the oscillation come to rest, move the masses and observe that the oscillation now has a new equilibrium position. The center-to-center distance between the balls and the masses will make the gravitational force extremely small.
Flat earthers : density
As far as I understand, this isn't quite the Cavendish experiment. He placed the masses just out of reach of the rod, so that the rod would rotate clockwise and counterclockwise like a pendulum. He then measured the period of this oscillation.
It's also a sample size of 1 with no consideration for airflow, vibrations felt in the building, etc. If you mount a telescope on a concrete pillar, look through the telescope at a star and then bump the concrete pillar -- you will see an oscillation -- it is a substantial influence. At best the gravitational acceleration that he thinks he's measuring would be liberally computed as 1x10^-9 Newtons -- 0.000000001 Newtons. Perceivable force through touch is probably 0.005 Newtons. So that force he thinks he's measuring is 100,000x less powerful than the force of the slightest touch we could feel.
How do you know the effect is gravitational and not due to the electrical charge on the spheres? ie Static electricity.
how dare you question the science? we are the scientists. we know what you do not.
seriously though. i've always thought this experiment to be bollocks at its best.
but the bamboozled will always protect the bamboozle no matter what you tell 'em..............
@@davedee6422 Actually, that was not a rhetorical question. The electrostatic force is so much stronger than the gravitational force I would have expected some sort of grounding of the spheres to be mentioned.
@@rogeronslow1498 and why would this fool mention electrostatic grounding as the possible source of the attraction ? he seems to have invested his life in the lie already.... wouldn't his intellectual pride be at stake?
@@davedee6422 You have a serious problem. The entire foundation if modern science is built on Newton laws. They have been demonstrated to be correct to a very high degree. Every time a satellite is launched Newton's laws are used to calculate its orbital height, velocity, period etc. And it works every time. Newton hypothesized that all matter attracts itself. The Cavendish experiment finally measured it in a lab and was able to put a value to it. How can you say that it's bollocks? If you reject this you must suggest an alternative that is better or simpler.
@@rogeronslow1498 my problems go far deeper.
invoke for me if you will a law that allows a non geometric (sattelite) weighing over a ton to be fitted into the nose cone of a rocket then launched from terra firma successfully without tumbling out of control followed by self destruction.
newtonian calculations don't cover this do they? truth is; newton has become the fall guy so liars in science can flog any old bullshit like blackholes and sattelites to anyone dumb enough to buy it. by now i think nasa gets about 60.000.000. a day.... WOW! what a business model
Just by being close to the floating weights is interfering with the experiment. According to the theory of gravity, the influence and distance of the mass of the human body can cause the weights to move. This experiment is already invalid from the start since the weights were already moving.
So serious question...why doesnt the ruler move when he stood next to it only when he places the second ball. If gravity is a force all around shouldn't he be able to move it by standing close?
You underestimate how weak gravity is, and how distance changes its strength very quickly. Plus humans are not very dense.
@@ratreptile: Some humans are pretty dense.
It takes a long time to see a noticeable movement
If they are attracted to one another, why would they not remain attached versus go to an "equilibrium point"?
and also, can you use a smaller and larger object than a bowling ball and measure the speed at which they are attracted? How about the time it takes if the bowling balls are placed farther away from the scale?
I don't think this is enough to conclude, "gravity," and I have yet to see an experiment that does these things above and compares the data to Newton's Law of Universal Gravitation.
Glad you brought up that important question. So gravity gets stronger the closer the two interacting objects get exponentially (IE: half the distance the force between them is 4x stronger) so the batteries at the end there are moving faster and faster towards the bowling balls but due to the conservation of momentum overshoot the distance and bc the move a certain distance out the force moves the slow at first, it will go faster. If they played this out it would kinda be like a metronome that got smaller intervals until the ends stopped moving entirely.
@@animuszen136 hey can you explain how gravity is able to hold oceans down and heavy buildings but can’t hold a bird or a balloon down?
@@ichoosefreedom9321 glad you asked. Gravity pulls things down proportionally to their mass. Therefor it scales with how massive something is. All something needs to rise is to overcome its weight (force of gravity pulling it down) with an opposing force. A bird’s wings flapping displaces air when it flaps. There are two ways to think about this. Forcing air under the wings of the bird creates high pressure under the wings relative to the pressure above the wings. This exerts that force you may have heard of called drag (that’s what essentially what it is). That’s also why planes do so, except bc of how massive it is, it requires engines on the under side to get it going. Also on that ocean bit. You can carry a piece of the ocean, or water, via a plane bc it’s not that much weight. But to carry the whole ocean, would require a gargantuan amount of lift or in the case of evaporation (when the top layer of the ocean evaporates to form clouds water expands when becoming a gas, the gas is less dense than the surrounding air and goes up as water vapor before accumulating in clouds condensing again, subsequently becoming more dense than the air around it and falls back as rain). And you can see less dense water and even colored gas do this in density comparisons.
@@ichoosefreedom9321 also here’s a video demonstration on that lift dynamic and gas density if you’d like to see that: th-cam.com/video/E3i_XHlVCeU/w-d-xo.html and th-cam.com/video/6V6f8P_WlQ4/w-d-xo.html
(Also as a matter of discretion, to a certain degree I sympathize with those who doubt these forces. Many (too many imo) kids/adults were taught in a way that just told you the equation and told you these forces existed, without giving you a proper demonstration in action. I think this causes people to grow up without a solid understanding of physics and I think just telling kids, “bc I said so,” shuts down meaningful understanding for simplicity. It’s also antithetical to learning to stump someone’s natural curiosity by not teaching people at a young age the proof for these natural phenomena. Otherwise they grow up with doubt and look for other explanations (even those with flaws) bc no one took the time to teach them with patience and compassion first, before that point. Also I may not always be here to answer questions (I am a person with a life outside of explanations after-all 😄). But I hope that you search for people who give you explanations bit by bit and show you the actual reason they work, and are honest about the limitations.) Bc at the end of the day, it’s not dumb to be skeptical, scientists are supposed to be skeptical after all, but it would be disingenuous to say that all reasons have an equal validity. That’s why we experiment and teach one another. And I’m personally sorry for how my colleagues get frustrated and resort to name-calling, that’s not cool, even if they are just tired, it hurts understanding to be treated without basic human dignity (regardless of who’s correct).
@@animuszen136 you said to carry the whole ocean would take a gargantuan amount of lift. So the same thing would be true about the ocean being held down. It would need a massive amount of force to hold it down. It makes more sense on a flat earth.! Plus water always finds its level right? So how isn’t that the only time I don’t find it’s level is when it has to do with a spherical earth.
Were there any efforts made to insure the weights and torsion arms were not attracted electrically or magnetically?
Why has no one reconducted this experiment in a house surrounded by lead/metal?
Don't know. Why should they?
Yeah, why should they?
Flatards be like: "Thats CGI an NASA is behind it!!"
How did you account for the mass of the floor, the table, the people in the room, the walls and the ceiling if this is mass acting on mass? This is what happens when you lower educational standards at universities, you get a bunch of people thinking they are the most intelligent, when they lack even common reason.
he let it reach equilibrium before adding the bowling balls; the meter stick was in a position where the acceleration due to all objects was balanced and net zero. also the acceleration due to gravity is inversely proportional to the distance away squared, so farther away objects have significantly less impact than close objects.
I thought the experiment required you not be in the room? How do you know you got the correct results with the AC running and blowing air around the room and you moving about?
I’m pretty sure the expirement calls for a vacuum but idk
thats why he does 2 times, one without a fixed weight and one with weights.
And, no, vacuum isn't required. Gravity doesn't need a medium to happen.
Cristiano Ferreira - thats silly “gravity doesn’t need a vacuum “. The point of a vacuum in this case is that it removes gasses that would interfere with movement.
@@tacticalant3841 you can also do it in a closed place without ventilation/wind.
So, no, it doesn´t require vacuum.
Gases add resistence which slow movement, but wouldn´t prevent it.
retitle: Cavendish Experiment Gone Wild.
Why did he obstruct the path with bowling balls?
Don't! So your mass objects would settle near bowling balls (you know, cuz gravity).
I know this is old, but in the years passed , has anyone looked at this video and thought ... "did he recognize that his OWN MASS could have been the reason it shifted at certain times?" It would certainly explain why the ends started to move further away from the bowling balls the moment he got close. Ofcourse that conjecture. Could also been the wind from his approaching but ... in this scenario of thinking. It could be possible. 😂
Inverse square of distance reduces the effect. Plus it is left to stabilize for hours hopefully.
why is there no video of this experiment done in a high tech lab somewhere?
You need high technology to put weights on a string?
Even though you've edited your comment, it still contains a lot amount of grammatical errors. :/
cause we can simulate a no gravity area
Because it has been repeated for two centuries and validated time and time again.
Well Hiith here shows videos filmed in labs doing this experiment and others: th-cam.com/video/rsbJ_Kto9BE/w-d-xo.html
Consider introducing viscous damping to resist movements away from equilibrium. Fins protruding into pans of water could be a possibility. The torque from a fin on one side would tend to twist the bar. With fins on both sides, the torques would cancel -- if the immersion depths, distances from the suspension point, fin sizes, etc., are the same on both sides.
Great experiment.
Have you tried to grounded the metal?
It looks like Coulomb's law/electrostatic force in action. Right?
@@Deveran yes.
Nice, is the twist in the rig due to the torsion that Cavendish was trying to calculate? You may have mentioned this but I had to watch on mute.
OK. I could finally get some sound and hear you address in the end. Great video. We are going to replicate for Physics class.
What's funny to me is how it didn't take it long to Gravitate to those 2 bowling balls. Yet when he walks up, he twice the mass of both bowling balls and it doesn't gravitate back towards him.
If that were the case the moon would be off on its way to the sun
What is the control for air currents?
Made inside an low ventilated room makes air currents negligible for heavy weights. There are demonstrations made in vaccum
@juas juasi the beam being at equilibrium will allow the slightest friction of air currents to cause movement, regardless of weight.
@juas juasi it moved before the bowling balls were place, just from him walking around
Why is there even an equilibrium point. If the mass of the ball's are attracting the smaller objects at the end of the string, why dont they attract to the ball and stay there?
The equilibrium point occurs where torques add up to zero. One torque is the torque of the torsional wire, restoring the assembly to its unstressed position. The other torque is the two torques due to the gravity between the adjacent pairs of balls. Where these would add up to zero and cause no rotation if it started there at rest, is the equilibrium position.
We're the balls attracted to larger objects in the room? How did you eliminate this variable? Too many open ends
According to Newton, gravitational force is inversely proportional to the square root of distance and only directly proportional to the mass of the other objects. So then, larger objects will not affect the experiment since they are too far to even cause a measurable force.
There are many fallacies with Any Cavendish experiment. It cannot be done...
@Elusive Truth
well tell us 3 fallacies
@@javiersierra6887 ikr?
The accepted conventions in many theories are, upon examination, not ligical.
Elusive Truth
You are talking about the theory, not the experiment.
And gravity is not a theory, it’s a law; “law of universal gravitation”
شكرا على التجربة, احاول افهم بس لسا مو راضي يدخل.
So why it is not a law of physics after this experiment ?
Theory=explanation supported in huge amounts of evidence
Law=correlation between facts
In science theory>law
Because it's pseudoscience
@@trendynow1369 because you dont understand what gravity is
@@HugoFilho. no, you just believe anything they tell you is real. Gravity is a THEORY.
@@trendynow1369 gravity is a theory because we have evidence supporting its existence.
I didnt need to believe things that other people told me because i already did this experiment
The floor is PVC. The ball is plastic. Light and air electrostatically charge plastics. This can also move due to stasis filling.
Faraday caliber for the balls!
How come it didn't move back towards the bowling balls in the end of the video? They should always return to the bowling balls if Mass attracts Mass
Because the force is really really small. It takes hours for any noticeable change
@@valizawesome796 LOL good luck with that, May the force be with you!
@@johnvoyage6486 Zz. It does return. Its just very very difficult to observe
have you ever dropped a rubber ball on the ground? it accelerates towards the earth, and then changes direction when it bounces. The gravity of a bowling ball is insanely small, so what youre seeing at the end is a very long bounce. it hit the bowling balls, bounced off, and at the end of the video is actually moving away from the bowling ball, but slowing down. If he kept the video going (you can do this yourself at home) the masses would return, bounce less and less until eventually coming to rest on or very very close to the bowling ball
@@jeffharper4509 Typical globetard bs. It's too big to see, it's too fast to see, it's too slow to see, it's just an illusion, the math says... Science means nothing to these freaks just their evil religion.
Were you ever able to refine the apparatus to the point where you achieved a constant close to what it was supposed to be?
Why would you not show the whole apparatus?
POG POG POG POG POGGERS
Yes
what are the variables? - the control variables, dependent variables and independent variables.
no las pusiste al inverso, así que bien puso ser que el hilo al estar hecho con una torsión y pasando el tiempo se empezara a destorser.
Why does the experiment only work exact in this way? A two-part design is essential for the success of the experiment. If a mass is only placed on one side, the experiment no longer works. (no matter how large the mass is) But it should if it is to prove gravity.
Because the center of the mass is in the middle
@@Doggus87 According to the theory of gravity, gravity is created by the body of mass itself and not somewhere in between. Not even in the middle between two bodies ;-)
@@hermannwenger6662 yeah but but gravity pulls everything towards the center of mass.
(You can imagine the center of mass as the point the body will rotate around when flipped)
I suspect electrostatics at work here. All this stuff needs to be conductive and grounded. And of course enclosed in a draughtproof space. The error sources are almost certainly greater than the wanted parameter.
Seeing it is the best explanation. Thanks.
What material are the spheres used in the experiment made of?
polyester or urethane.
@@tgstudio85 thanks
What kind of wizardry is this??
Electrostatic force misidentified as gravitational force.
So, will this work with granite balls and a pencil ? Or does it work with ice balls and a wand? Or do you have to use magnets ? Does it only work with magnets? I can get bigger rocks than that. Will it make a cotton ball cling to it? 👀🙏🏻*
And there's the desperate Flat Earther with his even more desperate comment. Magnets? Bowling ball are magnets to you? Pathetic, ridiculous.
@@AlexFoxthrot show me. Let’s see the experiment in real life.
It will work with two masses acting upon two other masses attached to a lever upon a counter-torqued pivot. The composition of devices is irrelevant.
The cotton ball will fall to the earth, which is the biggest rock available to you. Dropping the cotton ball to the earth, which is an oblate spheroid objectively, alone demonstrates attraction of masses.
@@philconey11 I’m saying will a cotton ball stick to your Cavendish magnetic ball while suspended, since you can’t seem to get your balls to stick together by themselves without pulling away. Thanks.
@@salomon109 The goal of the experiment is not to make two objects stick together. You're misunderstanding the fundamental purpose of the experiment. The goal of the experiment is to demonstrate attraction of masses and determine the gravitational constant.
Magnetism has nothing to do with it. It's a demonstration of gravity.
What are you trying to get at here? That gravity somehow doesn't exist even though it can be measured, repeatedly demonstrated, predicted and reproduced?
Great work
Thank so much
love from India
Not the best experiment, but I came for the Flat Earth idiot comments.
Not disappointed.
same :D wwant some popcorn?
@@editdebreceni3186 - Love some. Cheers!!
HAMMA....IS A BALLTARD FUCK WAD....
Tony Kamps TONY... YER PUSHIN' ME OVER THE FUCKIN' LINE.
Soo the gravity still exist or not?
Exist.
Cool to see it the effects of gravity in real time, with all the external factors such as friction & air currents to be on eliminated.
Good experiment there!
Epic fail. Didn't bother to create a large housing against temp variables. Couldn't get anything to stop moving before hand
why you put the bowling ball in the path of the pendulum and not let the pendulum swing past and around the ball? if you move the ball, then the pendulum should swing around the moved position. Also, what happens when you increase the Electric potential (voltage) of the moving masses? Just curious.
Probably nothing, as the bowling balls are made from polymers.
@@AlexFoxthrot shh sh they don't understand what that means or why it would be significant
It only took 5 minutes for the weights to strike the bowling balls? Fascinating.
Yeah, sure. Fascinating how it pulled it to the balls from 2 feet away but then they hit it, bounced away and it couldn't pull them back in from less than 10 inches.
Almost like this is inaccurate.. but, hey, who am I to spot the obvious?
)) this is obviously not the gravitational force. you may just calculate this force in your experiment and you will see that it is much smaller than required to rotate pendulum by such an angle.
I'm a flatearther and i cant do the same if i hide the suspension and handle it like a puppet 😅
I know bowling balls are good image, but they're not that heavy or dense. How about a chunk of lead or a big rock?
I would say: put a man next to the weigths and let him talk for ten minutes. I would think that the man in the video weighs a lot more than two bowling balls and therefore generates much more gravity. Or air movement, for that matter.
very fun and educational!!!!
All this does is prove static attraction of objects like a balloon to the wall. Can no one see how this is a manipulation and not proof of gravity?
No we can't see it's not proof of gravity because it IS proof of gravity. But you science deniers think y'all are the smartest humans on earth. This has nothing to do with static.
why is it shaking, and why is it not moving at the end? Preposterous
Thank you
It's good, really still, but the problem is any air currents rising around objects. Air moves every time you take steps around the experiment.
You should rest it in a box of sand that you can slowly lower down, inducing the sand to lower out from under it! And watch with a high frame-rate camera to see if it remains still or not.. then after reset, you can introduce the masses, stronger even than these hopefully and they sit in this same way, but you also then are watching as well with a Schlieren device to see no air movement interact with the device. You should have shields up to block the immediate airflow in. In this way you could actually be certain of, and measure, any cool effects of sitting masses attracting hanging masses. ^^
True having no air current would be more accurate but it’s not a as if the air current circle one way and then move the other way once the bowling ball is introduced. Then again it might reduce the wobbling in the case the air and the force of gravity are in two separate directions. And to be fair he’s running on what seems to be a string shoe budget here, he’s trying his best.
How come at about 5:45 seconds in the bar starts swinging away from the bowling balls? Id say this was a fail
TheGrumpyReefFish Wrong
why not just get a round gas tank make it into a pressure vessel rig up a camera viewing a set of digital scales used for weiging diamonds or gold attach a 1g weight to the scale send it up on a high altitude balloon and watch the numbers drop as gravity on the weight gets weaker. I know that people say that it weighs less at the top of a high mountain but i guess you could argue that there is less air volume sat on top of the scale. A pressurized vessel would eliminate that and the hight of the balloon will far suppass the hight of a mountain so surely this would be the ultimate proof of gravity that could not be argued with. even centifugal force would act on it the same way as gravity so the number will drop proving spin + gravity.
what is the reason for leaving after contact
To show that he isn't messing with the experiment
@@tiedeman39 I don't understand, could you explain a little bit?
@@maviyesil2701 Sure :) The Cavendish experiment is basically used to prove that objects with mass has a force that will pull on other objects, and the more massive the object, the more pull there is(as well as how close the object is). If he is in the room and sitting right next to it to watch it, it can mess with the experiment
What I don't understand is why did it move away after touching the balls?
3:20-4:20 @Tyler3978
@@maviyesil2701 That is most likely because that is when he opened the door, changing the air pressure in the room
I don't understand why I can't find experiments where the stick turns anti clockwise direction... Is it a coincidence or for some reason gravity only works clockwise? And why I can't find experiments where people move the bigger mass ( or masses ) around several times, in a random sequence, to prove that the movement of the bar is most probably not something related to the structure of the set-up itself. And how does the surrounding affects the experiment? If there is attraction between masses, independently from magnetic attractions, doesn't an irregular shape of the room, with its corners and objects inside, influence it too? What about the ground? to which the masses are so close. What about underneath the ground where we can't see, pipes and any other objects.... I mean don't get me wrong, I do not believe earth is flat, neither I give a fuck about it being honest with you 😅 but this Cavendish experiment seems to me pretty.... Wobbly
You have the silver bullet right there. I have never seen that either. They just let the wire twist as it pleases and whatever direction it goes, there is their "gravity". They not even once change the big mass around to see if it attracts the small weights in the counter direction.
An old comment I know. I would assume that the corners and other objects etc are the reason it initially rotated before he placed the bowling balls. Which is why he leaves it so long to let it balance out? Not an Expert, But that is what would make sense
This is a really poorly executed experiment. I have seen a video of a young girl perform it 100x better in her bedroom! Letting the weights crash into each other completely defeats the object. It's like trying to weigh something with a spring balance and letting it hit the ground!
Which video?
You need to understand the experiment and see where the center of gravity is. Pay attention and you will see that the weight NEVER made it back past the center. It stayed attracted to the bowling balls. You're DEAD WRONG.
Alright, with complains we also expect better results. Now show yours. Sincerely.
Physicist Charles Coulomb and Cavendish, 15 September 2020 - cloud.mail.ru/public/4MUd/Ao4WCYyFq
Physicist Charles Coulomb and Cavendish, 15 September 2020 - drive.google.com/file/d/1vBeRJDpISIo5eLOpJD_CliBN65DWsrpu/view?usp=sharing
Shut up karen
Has anyone calculated the force of attraction between a mass of 0.1 kg and a mass of 10 kg at a distance of 5 cm between them ? It is probably much smaller than the weight of a 1 mm square of paper !
yes, the force of big G I very small.
@@ratataran And is it still to be expected that such a small force would move such a weight over such a long distance in just 5 minutes and overcome also the twisting of the wire ?
2.66*10^-8 Newtons
@@marianl8718 No… the force of attraction here is bigger. A bowling ball is certainly more than 1 kg. And whatever is on the end of the meter stick is also certainly more than 0.1 kg. You can tell because of the way the stick is flexing.
@@brianfeuerman1732 I didn't write 1 kg, but 10 kg !
The force of attraction is very small and it couldn't really twist that thread !
FFW to 2019. and just look how many (and counting) ex-flatters there are :)
And let's just mention the Mockumentary "Behind the Curve"!!! That was a BRILLIANT own goal :D
There are zero ex flat earthers. A biased manipumentary editing to make people look dumb isn't difficult, and it's childish.
If this is the best you got for experiments, flat earthers don't have to edit anything to make this look ridiculous.
@@tannerlundquist5529 I am an ex-flatasser, kinda.. never was a full blown dumbass, but almost.
Ex flaters are feeling ashamed to say that they ever even thought about and looked into the stupidity of FE
@Please Complete All Fields As I said, wasn't 100% in on the idea, I was researching them, looking around. And then it dawned on me, day by day, I was reassured that they don't have a clue and that was it, I stayed on the path of logic and sanity.
@Cosmic Landscape okay fundamentalist religious zealot named cosmic landscape. Saying somebody looks dumb is easy, as you have demonstrated enough that I don't have to. Talk to me in a live debate and you can make me look even dumber.
So where's the experiment that demonstrates how water can curve and stick to spinning rock.
its called earth
So you claim to be able to recreate the gravitation acceleration of the earth inside a class room?
Clearly you have more to learn n
Why is there no video of a lab cavendish experiment? Because it takes hours and you can't see nothing, because it's all enclosed in a box. The rest is data analysis with math. Would you watch such a video?
That sounds very fishy to me.
xD They do make sense, I study physics, you do it in the first 2 weeks xD @jeff adamson
Yes. But in science, something that is called theory has to be proven to be a theory. Theory means, that everything we know, says, it is correct. If there is one single thing that disproves it, it is no theory anymore. And if there is nothing, that supports it, it is no theory. Also, you can watch the proof here and do it yourself (before you complain: The video is speeded up, so if you do it yourself, you have to watch it for some hours. th-cam.com/video/Ym6nlwvQZnE/w-d-xo.html Oh wait! This experiment is in this video already! So why you don´t try it yourself instead of complaining? You didn´t do the experiment, I did and it proves gravity, so what is your problem? @jeff adamson
Well, seems like you have no arguments left, so just do the experiment yourself, and then you can see yourself, if it exists or not. @jeff adamson
More dense things are heavier BECAUSE OF gravity. If there is no gravity, why should stuff fall "downwards" and not upwards for example? And to your video I have one question: Why should that video be true and this and the one I sent you not? Just because you want yours to be right. If you really want to know, you should try out the experiment. You are free to believe what you want, but then try things at least, before you say they are wrong, ok? I think this discussion is now over. @jeff adamson
This needs to be conducted in a vacuum under a stable temperature with controlled lighting to be fully legit. Still too many factors at play
Says who? You? 🤣
it has been thousands of times?
What is the lighting going to do?
You should have let it play out after it hit the ball..it was slowing to a stop would have been nice to know why...
Is this just a fun representation of gravity, or an actual proof? I'm no scientist, but air flow, the strings, the way the string is tied, the exactness of where the string is tied, the device itself. All of those effects are more subtle than gravity at the scale of something as tiny as a bowling ball!? Huh? Someone please explain.
I presume you are from the US. Was this not a high school demo for you. But I agree, this looks like a quick and dirty experiment to me. Having said that I saw a more 'scientific' version of this at school some fifty years ago.
Static?
So, when the wind blows, "gravity" ceases to exist? If mass attracted mass it would, but it clearly doesn't. . .
What? So you live in a universe that only ever has a single forced acting on a piece of matter?
@@kitcanyon658 I live on earth and mass does not attract mass. . .
@@skok58 yes if clearly does as shown here
@@E9X330 Take the smaller mass out of the contraption and set it next to a huge boulder, or skyscraper and prove it. . .
@@skok58 do it yourself
Since there is a voltage across all those surfaces, you can't rule out that Coulomb's law is really being applied and not gravity. Consider the knitting needle experiment conducted in the International Space Station.
No you are wrong
@@Majeed_1995 rub a cloth over those spheres and see if they don't move faster. It's demonstrating charge, not gravitational pull based on mass.
@@roberthawthorne8396
your suggested experiment doesnt rule out gravity.
And because an objects capacitance is independent from its mass, you can repeat the above experiment with increasing masses with constant capacitance which would still demonstrate an increasing force. Proving the existence of mass proportional forces that we call gravity.
@@dark6.6E-34 prove it since the Cavendish experiment has never once measured the voltage of the respective spheres. They just assume the mass does the work. It's an incorrect assumption.
@@roberthawthorne8396 They dont just assume the mass does the work. Typically the use of highly conductive grounded masses guarantees negligible capacitance which means negligible static voltage. Then if you vary the mass you get the mass proportionality, independently from the capacitance.
The Cavendish experiment is very hard to replicate without non-gravitational forces swamping the gravitational signal. We recently did a home Cavendish gravity experiment shown here: th-cam.com/video/XX3jcIPYTZo/w-d-xo.html. We learned that it's impossible unless it's in a sealed box because of air currents. Also, both electrostatic and especially thermal gradients can amplify the gravitational attraction. So although the sign of the attraction agrees with a gravitational force, you need to make a quantitative comparison to really be sure that the motion you are seeing is attributable to gravity or (more likely) is dominated by some other force.
spoiler alert (Gravity is a fairytale for adults)
@@yupok318Try doing any type of physics or engineering without it and see how far you come.
Talk about unscientific! 🤣 office air comes on and blows the measurement device.... if that isn’t enough he guided the device with his hands 🙌 to stop the twisting of the string... 😂 😂 😂
I did it without wind and it worked :|
Replicate and post a video of the experiment. Now.
Everyone don't speak and breadth! It's very sensitive!
This wrecks flat earth 🌍 nonsense that gravity does not exist. Thank you.
This isn't scientific because you didn't show what the string is suspended from, and you didn't show that there's nothing in those containers that the balls are on. How do we know there weren't magnets in the containers, or that the string isn't suspended from a spinning motor?
@@kapilchhabria1727 They can obviously install magnets into bowling balls, how do we know they didn't?
I don't need to do the experiment because there needs to be solid separation between Earth and the supposed vacuum of space. There's also nothing to push off of in the supposed vacuum of space, therefore outer space and space travel are fake and lame.
thank you for sharing.
Idk about this experiment what about electromagnetism? Also ive heard the earth has a lean from its movement i guess the rotation of the earth. Or possibly another force that i canet think of.
Like the force of a guy walking through the experiment, talking and generating air movement?
Einstein: gravity isn't a force, it's an effect.
Blerfers: but my Cavendish Experiment?
Flerfs: ha ha ha, thanks Einstein.
Define force.
Can’t see how super weak magnetic force is excluded from this experiment. Maybe non magnetic materials actually have a super weak not measurable magnetic component
Doesn’t matter whether you can see it or not, it’s there moron
You could see the weights perfectly accelerate as they approached the balls
At 3:50 why did the ensemble stop moving towards the balls, since there's still a lot of visible distance between them? Gravity shouldn't stop manifesting until the objects are in contact! Which means that the only thing which made the ensemble move is the fact that you applied a torsion force on the string and it then unwound back to its initial position (which has no more torsion resistance). Which then means that the experiment is fake and that it doesn't prove anything.
Wrong.
Wrong.
WOW, this is amazing to see!
The weights touch the balls and then move in the opposite direction. This is supposed to prove something?
Ok look .why do things keep stable in the ground without movement but once they isolated from the ground they keep moving due to many unseen forces even a tiny wind could move it or an electric field or some unseen energetic waves ...why do you assume its earth rotation ???????
Nobody is assuming earth's rotation.
You are seeing gravity acting.
Flat earthers: thats cgi, gravity isn't real
Incredible experiment!! So that’s how the solar system planets!!
that doesnt look like it was following the theory. 1st the movement was way too fast as if something else was pushing the weights, and when it touches the ball, the weight is pushed back once it touches the ball, this would not happen as the supposed gravitational force would keep the weight permanently glued to the ball, and the "undisturbed" interaction of the weight with the ball would not cause a force that is greater than the gravity of the ball to push the weight back from the ball. This should be intuitive.
2nd, after the first touch and retraction of the weight from the ball, and weight never went back towards the ball.
The fact that people confirm their own beliefs by watching videos such as this one, where the flaws of the experiment, and of the observable results, are obvious, confirms that most people are simple-minded and will confirm their bias with very little information.ANd as a result we have theistic and scientific religions currently ruling the minds of the people.