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Anyone else ever notice that the explanation of gravity that uses a stretched out sheet with a bowling ball sunk into it to show how a planet’s mass bends space, thus causing other objects to be drawn to it by falling down into the resulting sunken area, requires an already existing gravitational pull, to pull the bowling ball down into the sheet, and pull objects down into the sunken area of the sheet?
Anyone else ever notice that the explanation of gravity...
I think the rubber sheet analogy is a good first step physical visualisation before introducing a more abstract 3D grid distortion. A few people may get confused that gravity is being used to illustrate gravity, but they're missing the illustrative point of the analogy.Yeah, I've heard a lot of scientists say it's not a great way to illustrate it.
I look at it like a grid, and when you place objects on it, the gridlines are drawn towards the object.
but they're missing the illustrative point of the analogy.
The analogy is with the Einsteinian model of gravity.there is no analogy
because it is not understood
The analogy is with the Einsteinian model of gravity.
Somewhat contradictory... and your link agrees that it's an analogy to Einsteinian gravity.
Einsteinian gravity.
as I said, we don't understand gravity…
Speak for yourself.
does not apply
Your failure to understand gravity is not reflective of others who do understand it.
What are 'aliens' and how do you understand them?
i) They've 'called it home' for only 1,000 years .. and you call that 'ancient'?
i) They've 'called it home' for only 1,000 years .. and you call that 'ancient'?
Graham Hancock is a terrorist.
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