could you liken the planets revolving around the sun to a marble rolling around & down a sloped bowl with a depression at the bottom?
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answers:
Jeffrey K say: That is a poor model. That is not how orbits work. That analogy is used when talking about how gravity curved space in general relativity. But don't take it too literally, even for that purpose.
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Eric say: There are no planets. And the Earth is a plane. The sun revolves over and above us.
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Ronald 7 say: Yes
And they keep their Velocity so they remain rolling
The Planet Uranus spins on its side so that is practically rolling as it is
All bodies have a Gravity Well
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MARK say: Yes, it is what is called a gravity well.
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quantumclaustrophobe say: Sure. Or, if you've ever seen those "donation vortexes" that are around warehouse stores - there's a little slot that you roll a quarter in, and it goes around & around this narrowing cylinder. It's slow when it first starts, close to the top, and further out from the center, but as it gets lower, the circles it makes get narrower, and the quarter rolls faster... https://www.teachersource.com/downloads/...
The closer to the center the coin (or marble) is, the faster it goes - much like the planets closer to the sun. The further out they are, the slower they go as well. It's a decent analogy - but... not perfect.
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ignoramus say: No. The analogy is infantile at best, and does not in any way represent the actual forces which govern planetary motions, and the interplay of those forces.
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TardisAndTheHare say: Yes, it is called a gravity well.
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Pascal the Gambler say: Not if you knew what you were talking about.
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the internet say: Not really, because marbles have friction and that friction causes the marbles to fall into the depression.
While the moon is moving further away from earth (about 3.8 cm per year).
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Dze say: Not really but I think that's a way to visualize the forces involved ..
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Who say: yes
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Nikki say: space-time distortion is very real.
https://www.youtube.com/watch?v=yuD34tEp...
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Fred say: "Could you liken the Planets" … Why! Yes! You are perfectly free to personally "liken" anything you wish!
But isn't it more exciting to entertain our solar system as an accretion from a solar nebula, and throw all the "liken" models away?
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Acetek say: that is how a gravity well is described
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Laurence say: Not really the Sun has a lot of gravity due to its mass relative to the planets so the planets are attracted to it
I don't think there are many good examples
Also the planets don't get closer to the Sun by rolling down a funnel
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