Author Topic: There is no Proof of theory of Gravity (Read 19509 times)

Dankward · « **Reply #60 on:** February 19, 2022, 09:22:39 PM »

Quote from: Ladislaus on February 19, 2022, 03:08:17 PM

... not the classroom Cavendish garbage again.

This is the kindof stuff that completely discredits you guys.

So no actual methodical or factual criticism of the experiments.

Why do you refuse to be specific? Your standard of evidence for things that support your views is extremely low, while your standard for evidence that is contrary to your views seems to be extremely high.

Marion · « **Reply #61 on:** February 22, 2022, 01:31:04 PM »

The Cavendish experiment isn't the only way attraction of masses has been measured. Numerous experiments show the attraction of masses. E.g. Italian scientists have put a gravimeter below a huge artificial lake between Bologna and Florence which is used by a pump storage power plant. The lake is emptied every day, and filled again every night.

The gravimeter is an accurate scales measuring the weight of a test mass.

While the lake is filled, the weight of the test mass reduces due to an additional pull upwards by the mass of millions of tons of water.

The experiment does not only detect the pull of the water, but the measurements are accurate enough to verify the inverse square distance dependency of gravity within a 0.17% level.

https://www.researchgate.net/profile/Federico-Palmonari-3/publication/235475100_Testing_Newton%27s_inverse_square_law_at_intermediate_scales/links/570d27aa08ae3199889bb973/Testing-Newtons-inverse-square-law-at-intermediate-scales.pdf?origin=publication_detail

Marion · « **Reply #62 on:** February 23, 2022, 07:18:50 PM »

Some observations concerning the above mentioned experiment with millions of cubic meters (tons) of water, as well as related experiments are pertinent with respect to the topic of this thread:

•	Bodies are not only pulled (or pushed or both; for simplicity I'll just mention pulled in the text ahead) down to the ground or to the center of the earth. They also are pulled in other directions where other bodies are.
•	Newtons formulas are correct to at least some digits of accuracy. The pull is proportional to the mass of the test body, proportional to the mass of the other body, and proportional to the inverse squared distance of the bodies.
•	Flat earther's claims that "gravity doesn't exist" are hilarious anyway, since everybody feels it, and all humanity of all times has used scales to measure the gravity of e.g. bread or gold. The Romans called it gravitas, and St. Thomas Aquinas explains Aristotle using that same Latin word.
•	Newton didn't present a "theory of gravity" in the sense of an explanation how gravity works. On the contrary, he said he didn't have any, and philosophers should think about one. In one copy of his own Principia he wrote a comment showing himself quite impressed by the theory of Nicolas Fatio de Duillier, which was half a decade later re-presented by Georges-Louis Le Sage. But even Fatio, who later owned the copy, said that Newton believed that the cause of gravity was simply "the will of God".
•	Newton did present a "theory of gravity" in the sense that he contradicted Aristotle and St. Thomas, who believed that gravity was a property of bodies which makes them tend to their "natural place" at the center of the earth (and the universe). Galilei had said that bodies are inertial (tend to keep up rest or constant rectiliear movement). Newton said that, in addition to Galilei, gravity acts as if all bodies mutually attract each other.
•	As far as I know, Newton was the first to come up with the idea of mutual mass attraction. The experiments support his idea.
•	Einstein's gravity reduces to Newtonian gravity given circuмstance on earth (or even within the solar system). Under such circuмstance, Einstein contradicts himself. The usual speed limit c breaks down to converge to Newton's gravity which instantaneousley acts at a distance.

Other observations:

•	These experiments don't allow to draw any conclusion about celestial bodies.
•	Newton's absolute space was debunked by Ernst Mach.

curious2 · « **Reply #63 on:** February 23, 2022, 08:01:23 PM »

Quote from: Marion on February 23, 2022, 07:18:50 PM

Some observations concerning the above mentioned experiment with millions of cubic meters (tons) of water, as well as related experiments are pertinent with respect to the topic of this thread:

• Bodies are not only pulled (or pushed or both; for simplicity I'll just mention pulled in the text ahead) down to the ground or to the center of the earth. They also are pulled in other directions where other bodies are.
• Newtons formulas are correct to at least some digits of accuracy. The pull is proportional to the mass of the test body, proportional to the mass of the other body, and proportional to the inverse squared distance of the bodies.
• Flat earther's claims that "gravity doesn't exist" are hilarious anyway, since everybody feels it, and all humanity of all times has used scales to measure the gravity of e.g. bread or gold. The

I feel no attraction to the chair across the room, or to any object, however massive. If you put my corpse next to a cruise ship, it would not move a fraction of a centimeter in a million years.

Tradman · « **Reply #64 on:** February 23, 2022, 08:12:53 PM »

Quote from: curious2 on February 23, 2022, 08:01:23 PM

I feel no attraction to the chair across the room, or to any object, however massive. If you put my corpse next to a cruise ship, it would not move a fraction of a centimeter in a million years.

So funny, but so right. Nobody needs to use their head strictly as a container for their teeth. Multi directional pull to explain gravity is pretty dumb.

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Author Topic: There is no Proof of theory of Gravity (Read 19509 times)

Dankward

Re: There is no Proof of theory of Gravity

Marion

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Marion

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curious2

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Tradman

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