The discovery of Neptune followed its mathematical prediction based on the Newtonian gravitational theory - I wonder if density and buoyancy could have done the trick… en.wikipedia.org/wiki/Dis…
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πŸ‘€︎ u/msch6873
πŸ“…︎ Oct 18 2021
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Unique prediction of 'modified gravity' challenges dark matter theoryβ€”Instead of attributing the excess gravitational pull to an unseen, undetectable dark matter, MOND suggests that gravity at low accelerations is stronger than would be predicted by a pure Newtonian understanding. phys.org/news/2020-12-uni…
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πŸ‘€︎ u/mddtsk
πŸ“…︎ Dec 17 2020
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Einstein came up with a theory of gravitation, a theory about the structure of spacetime, and married his cousin.

It's all relative.

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πŸ‘€︎ u/ThusSpokeGaba
πŸ“…︎ Sep 10 2021
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The theory of gravitation
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πŸ‘€︎ u/Abschori
πŸ“…︎ Oct 26 2021
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Any good resource with the derivation of the shape of gravitational oribits (Newtonian)?

Y'know elliptical, parabola, hyperbola etc. depending on initial ke.

TIA

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πŸ‘€︎ u/veryfani
πŸ“…︎ Jan 07 2022
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[WP] A startup creates a trading platform for universal constants. Speed of light, newtonian constant of gravitation, planck constant and all others now have their value dependent on offer and demand
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πŸ‘€︎ u/dalsh
πŸ“…︎ Jul 12 2017
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Theory of evolution is just a theory, not fact.. just like theory of relativity and Newtonian theory of gravity... i guess many of you have seen this.. if not have fun at hearing say
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πŸ‘€︎ u/jonsnowwww96
πŸ“…︎ Sep 25 2021
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β€œWhen forced to summarize the general theory of relativity in one sentence: Time and space and gravitation have no separate existence from matter.” .... Albert Einstein.
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πŸ‘€︎ u/YZXFILE
πŸ“…︎ Sep 23 2021
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Is it possible to use Gauss's Law for Newtonian Gravitation?

I've been substituting the Electric field with the gravitational, the constant 1/Ξ΅_0 with G, and the Charge enclosed with the Mass enclosed in, the equation-

E.dS = Q/Ξ΅_0

The idea seems to be quite similar, but the expression for Gravitational field that I obtain is different. So, is this law being applied incorrectly?

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πŸ‘€︎ u/hmpher
πŸ“…︎ Apr 02 2018
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Newtonian gravitation, does the r^2 in denominator cancel out to just r?

The equation is F(r)=[(GMm)/(r^2\)]rΜ‚... Does the r-hat(w/ circumflex) cancel out the square in the denominator or is it some other value?

I'm doing field model stuff with charges in physics and have an exam tomorrow so some clarification would be great... In the main notes my prof wrote: F=(kqQ/r^2)rΜ‚ ... but in the summary section he wrote simply F=kqQ/r

It seems the obvious answer is yes, they do cancel out. But this is a newer concept to me and I'm being tested on it tomorrow, so i want to make sure I'm not mistaking one equation for another.

Between point charges, points within a field, etc, there is kind of a lot of variation of the same equation. So, I don't want to mix any of them up

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πŸ‘€︎ u/DepecheALaMode
πŸ“…︎ Oct 18 2018
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TIL: The orbit of Mercury follows a unique pattern different from other planets which remained unexplained until Einstein’s theory of bending space time due to large nearby gravitation. Previous theory was there was another planet between mercury and the sun, Vulcan. aether.lbl.gov/www/classe…
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πŸ‘€︎ u/reduxde
πŸ“…︎ Aug 03 2020
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Why was Newtonian gravitation unable to account for Mercury's orbit?

I've been reading a biography on Newton and how he came to his theory of gravitation. It mentioned that even before he published the Principia, Newton realized that there were discrepancies in Mercury's orbit that he could not account for but they were largely dismissed as observational errors that would eventually be corrected.

Jump ahead a couple hundred years (and many frustrated astronomers) later and relativity figures out what is going on but all I got out of the Wiki article on the matter is a lot of dense astronomy jargon having something to do with the curvature of space-time and Mercury's proximity to the sun. Anyone able to make it more understandable?

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πŸ‘€︎ u/Gullible_Skeptic
πŸ“…︎ Dec 13 2011
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A meteorologist, Edward Lorenz, brought the Newtonian clockwork universe assumption to an end and gave birth to chaos theory

I find this to be very interesting in that of all the fields possible to break science out of it's rigid box of thinking turns out to have been a meteorologist. In 1972 he presented his finding of unpredictability in an influential speech he entitled "Predictability: Does the Flap of a Butterfly's Wings in Brazil Set off a Tornado in Texas?"

This is ironic in that it was so close to the origins of climate science and it's obsessions over global warming cum climate change.

The concept is that there are extremely small variables built into equations that unexpectedly continue to increase their influence on the carefully laid out and ostensibly exacting model and ultimately creating unpredictable results.

Yet we're meant to have faith that the patchwork of climate models (not even one whole model) can predict future climate centuries into the future.

Look, there may be some truth to it but anyone who takes it as gospel is a fool.

http://scihi.org/edward-lorenz-chaos-theory/

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πŸ‘€︎ u/Eli_Truax
πŸ“…︎ Dec 28 2021
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Physics Frontiers 31 - Post-Newtonian Gravitation frontiers.physicsfm.com/3…
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πŸ‘€︎ u/physicsfm
πŸ“…︎ Jun 09 2018
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Skeptical of Structure - Kuhn's Structure of Scientific Revolutions: Kuhn exaggerates the differences between pre- and post-revolution theories, to the point of misleadingly describing Newtonian mechanics as "wrong". thatdoesntfollow.com/2021…
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πŸ‘€︎ u/jrstamp2
πŸ“…︎ Jul 20 2021
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We cannot exclude the possibility that things like Newton's law of universal gravitation and Einstein's theory of general relativity were somewhat inspired by moments of post-nut clarity.
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πŸ‘€︎ u/FreshTomatoMan
πŸ“…︎ Feb 15 2021
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Could a philosophical theory have the status of Newtonian mechanics - not literally true for the entire universe, but accurately modelling certain parts?

I'm under the impression that philosophical theories often seem to have a very wide scope and aim very high, at some ultimate and universal truth, but make little/slow progress. What is truth, what is the right logic, are there abstract objects - those are very universal questions, asking how things are in the universe, period. In physics, specific theories merely model specific aspects of reality. Newtonian mechanics works well for macroscopic objects, and that's good enough to be useful. Quantum mechanics and general relativity are difficult to incorporate into one model, but either does a great job at describing one aspect of reality.

Is it thinkable to do something like this in philosophy? Theories that have a narrower scope, aim lower, but might as a result progress faster and still be good enough?

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πŸ‘€︎ u/hannes_throw_far
πŸ“…︎ Mar 09 2021
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General relativity, also known as the general theory of relativity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics. General relativity generalizes special relativity and refines Newton's law of universal idk
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πŸ‘€︎ u/someblokeidkm8
πŸ“…︎ Jan 20 2021
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Surgebinding - Advanced Applications of Gravitation, Combinations and Resonance Theories

Roshar is overpowered.

That's a fact.

But why? And could they get ever more overpowered with greater scientific understanding and some creative applications of Surgebinding? Today I'm gonna throw out a bunch of theories and some detailed analysis of surge of Gravitation. I mentioned in an earlier post about Surgebinders potentially creating a fusion reactor, but I'm gonna get more creative than that.

Note: been working on this for a while and just saw that someone posted something similar today (16/1) so I may be pinching some of their ideas

Gravitation

This is a brilliant surge, near limitless applications. As we've seen, it's great for combat, both for making aggressive attacks from the sky and, more confusingly, from ceilings and walls, and for defence, be it through removing weapons or trapping enemies on walls or in the sky.

We all know of the Basic Lashing, which is when an object/person has their gravitational bond changed spiritually. The key note with this is changed. This is what I see as a limitation based on the users of the surge.

Now, we also know of the Reverse Lashing, a combination or Gravitation and Adhesion where a new gravitational pull is simulated. This is where the Basic Lashing is used at a higher level with a splash of Full Lashing to keep things stuck. By that I mean that instead of changing gravity, it is created, there is another source of gravity acting upon something. This simple act is where the Basic Lashing levels up, becoming an Advanced Lashing (the term I'll be using here).

But, what about the opposite of a Reverse Lashing? A Push instead of a Pull? Now this technique, if possible, I imagine would be far harder. I actually see it as the combination of Division instead of Adhesion, separation instead of binding.

So, this would mean Gravitation Surgebinders would have the ability to change how an object is affected by gravity and can create another source of gravity for an object. Seems kinda irrelevant, why might that be useful? We've seen a Reverse Lashing kill and we've seen how it can protect, what else is there for creating gravity good for? Simple, it's 2 words;

Nuclear reactions

Now this is where the scientific understanding becomes critical, there's no way they'd be able to create the correct Intent for this. If Rosharans can learn about atoms (or axi as they're called in-world), as well as how the sun and stars work, they should eventually consider ways they can recreate the reactions them

... keep reading on reddit ➑

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πŸ‘€︎ u/allofthedank
πŸ“…︎ Jan 16 2021
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Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole journals.aps.org/prl/abst…
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πŸ‘€︎ u/dr_innovation
πŸ“…︎ Oct 04 2020
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Fabrial Theory - Wind or Gravitation Spren Fabrials

Obviously, Nevani is a fan of flying vehicles as a concept, so I find it likely that at some point, by means of either wind or gravitation spren, they will make flying vehicles (Mistborn Era 2 Spoilers)>!that rival or surpass those on Era 2 Scadrial!<. However that would kind of make a large portion of Windrunner and Skybreaker abilities redundant, so that is a major reason Brando might not do this. Consider those pods she flew in in RoW. They wouldn't need a Radiant to just hang around for them to work. That said it would make sense in the magic system. Roshar would effectively become very small and only really be as big burring the weeping. If you use the right shape, terminal velocity with just a few lashings could be well over the speed of sound. This would have to be done in Shadesmar. Thoughts?

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πŸ‘€︎ u/jacobmpp
πŸ“…︎ Jul 04 2021
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Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole journals.aps.org/prl/abst…
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πŸ‘€︎ u/nanowinner
πŸ“…︎ Oct 04 2020
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Einstein's Theories of Relativity and Gravitation by J. Malcolm Bird gutenberg.org/ebooks/6337…
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πŸ‘€︎ u/Chtorrr
πŸ“…︎ Oct 05 2020
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[November 7th, 1919] On 7 November 1919, the leading British newspaper "The Times" printed a banner headline that read: "Revolution in Science – New Theory of the Universe – Newtonian Ideas Overthrown".
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πŸ‘€︎ u/michaelnoir
πŸ“…︎ Nov 07 2019
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ELI5 the reason why the Many Worlds Theory results in such vastly different Newtonian/macro worlds?

I understand that electrons diverge and create new universes. But surely these changes that occur with individual electrons dont result in such vastly different macro worlds? To the point that in one universe Im wearing a clown costume playing water polo because an electron in a laser behaved spun right instead of left.

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πŸ‘€︎ u/runningshoes1
πŸ“…︎ Jul 07 2021
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How Isaac Newton formulated his theory of gravitation:
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πŸ‘€︎ u/pro100andryha
πŸ“…︎ May 02 2020
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A young Sir Isaac Newton contemplates a theory of universal gravitation after an apple falls on his head (circa 1667 AD colourized)
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πŸ‘€︎ u/wheresmysupersucc
πŸ“…︎ Sep 02 2018
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Feeling kinda cute 😳😳 Might disprove Newtonian theory of gravity later idk...
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πŸ“…︎ Jul 13 2020
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Is General Relativity a theory of gravitation only, or is it a general theory of mechanics?

By mechanics, I mean kinematics and dynamics.

Would it replace, for example, the Navier-Stokes equations for high-speed flows?

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πŸ“…︎ Dec 28 2018
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Theory: the Stellaris universe is a Newtonian one
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πŸ‘€︎ u/Cweeperz
πŸ“…︎ Jul 24 2020
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A question of Einsteinian and Newtonian theory in two particular equations

We are stuck on a literal and figurative treadmills in an erroneous way ! If you look at the Time Dilation Equation in Relativity and Pendulum Equation in Mechanics you may be able to see what is, I believe , actually the problem . They are both describing Treadmills . Both equations have us on Treadmills going no where fast ( or slow ) . Look at the terms v squared divided by c squared . I call this the Inverted Light Year Term . It is like the wheel on a treadmill with the change in Time running on the belt . In the Pendulum Equation the wheel is the term Length divided by Gravity . I call this the Inverted Length . The Time Period is running on the belt . Both the Inverted Light Year and the Inverted Length describe what I call the Inverted Time . Time Dilation and Pendulum Equations are describing a bound situation where Light and Motion are restricted to a series of closed intervals . So , we have to find a way to either get off the Treadmills , get on the Treadmills or to link them together in order to manipulate Light and/or Motion with Time . I hope you may understand this (?) Inverted = reciprocal (?) Inverted Light Year combined with Inverted Length = Inverted Time (?) Inverted Time is a cycle of Velocity and Distance and Time turning around (?)
Possible : Inverted Time = 1/t = A specific moment of Time in the past , present or future (?)

See my other posts in r/timetravel under A Theory of Time ... extended ... by John and A Theory of Time ... by John ...

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πŸ‘€︎ u/johnnywhotime
πŸ“…︎ Jul 09 2020
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Ever heard of Democracy, the internet, indoor plumbing, vaccines, the automobile, cellphones, computers, airplanes, mathematics, the theory of gravitation, the theory of relativity, the printing press, representative government, the modern suburb, the highway system, and supermarkets? reddit.com/r/TheFairerSex…
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πŸ‘€︎ u/GooseMan126
πŸ“…︎ May 12 2019
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The fact that super spirals break the usual relationship between galaxy mass in stars and rotation rate is a new piece of evidence against an alternative theory of gravity known as Modified Newtonian Dynamics hubblesite.org/contents/n…
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πŸ‘€︎ u/space_telescope
πŸ“…︎ Oct 17 2019
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Chapman's Principia, or, Nature's First Principles: Theory of Universal Electro-Magnetism, Simplified Explaining the Elements of the Important Discovery of the Laws of Nature, Which Regulate the Changes of the Elements: Exposing the Numerous Discrepancies of the Popular (So-Called) Newtonian Theory hatch.kookscience.com/wik…
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πŸ‘€︎ u/kookscience
πŸ“…︎ Mar 06 2020
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Isaac Newton's apple tree which helped him to understand the law of gravitation. It's based in an orchard at Woolsthorpe Manor and is over 400 years old.
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πŸ‘€︎ u/iklegemma
πŸ“…︎ Jan 06 2022
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I don't understand how Universal Law Of Gravitation formula came [See Pic]

Image - https://imgur.com/a/ypLtMKs

How did they combine? Multiplication? Then shouldn't the LHS be F^2?

or how?

Kindly clear my understanding

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πŸ“…︎ Jan 08 2022
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Einstein's theory of gravitation use as gravitation to explain gravitation

As Einstein said a large massive body will create curvature in space as a large ball does on a trampoline. But it does that only because of gravity is pulling it down. Any small ball on the trampoline will go down only because the gravity pulling it down. In deep space none of this will happen.

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πŸ‘€︎ u/gd007
πŸ“…︎ May 05 2019
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TIL that a University of Arizona’s Gender Studies researcher created a new theory of quantum physics because Newtonian theory separates beings based on their β€œbinary and absolute differences,” which she described as both β€œhierarchical and exploitative.” thecollegefix.com/post/32…
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πŸ‘€︎ u/tilbot2
πŸ“…︎ Jun 01 2017
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Super Spirals Spin Super Fast - The fact that super spirals break the usual relationship between galaxy mass in stars and rotation rate is a new piece of evidence against an alternative theory of gravity known as Modified Newtonian Dynamics hubblesite.org/contents/n…
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πŸ‘€︎ u/space_telescope
πŸ“…︎ Oct 17 2019
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How much did the quality of real life improve when we went from Newtonian physics to discovering Einstein's theory of general relativity? reddit.app.link/tRxO5fXWp…
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πŸ‘€︎ u/developer-mike
πŸ“…︎ Oct 01 2019
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