Can water really stick to a spinning ball?
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DrWatson · 70-79, M
Many flat earth believers say they do not believe in gravitational force. But apparently you believe in centrifugal force.
DrWatson · 70-79, M
@TBIman I do NOT think the way you think.
Forces can be measured by measuring the accelerations they produce, and then using Newton's law F = ma to calculate the force. That is just as true for gravitational force as it is for centrifugal force. It makes no sense to say one can be measured and the other cannot.
If you are going to take the point of view that accelerations can be directly measured, but forces are just mathematical constructs defined by Newton's law, that would be a consistent point of view. But apply it to centrifugal force as well. And if you want to avoid the term "gravitational force" (and "centrifugal force") you can say "gravitational acceleration" (and "centrifugal acceleration.") But it makes no sense to say that one force is real and the other is not.
Gravity is just as real as the centrifugal effect, even if you banish the word "force" from the language.
Forces can be measured by measuring the accelerations they produce, and then using Newton's law F = ma to calculate the force. That is just as true for gravitational force as it is for centrifugal force. It makes no sense to say one can be measured and the other cannot.
If you are going to take the point of view that accelerations can be directly measured, but forces are just mathematical constructs defined by Newton's law, that would be a consistent point of view. But apply it to centrifugal force as well. And if you want to avoid the term "gravitational force" (and "centrifugal force") you can say "gravitational acceleration" (and "centrifugal acceleration.") But it makes no sense to say that one force is real and the other is not.
Gravity is just as real as the centrifugal effect, even if you banish the word "force" from the language.
TBIman · 46-50, M
@DrWatson Yes. I believe that things fall when you drop them, but not due to any force. Things have weight correct? That is the only reason things fall. I'm unsure if gravitational acceleration exists or not. As I am uneducated. You seem like an intelligent guy.
As far as up and down is concerned... Up is towards the sky for everybody, and down is towards the ground for everyone at the same time.
It is quite simple man. Up is up and down is down. Left, right, forward, and backward are dependent on which direction you are standing.
As far as up and down is concerned... Up is towards the sky for everybody, and down is towards the ground for everyone at the same time.
It is quite simple man. Up is up and down is down. Left, right, forward, and backward are dependent on which direction you are standing.
DrWatson · 70-79, M
@TBIman But what gives an object its weight? Weight is, by definition, the force of gravity acting on an object.
w = mg
Where w = weight, m = mass, and g = acceleration due to gravity. It's a special case of Newton's Law, F = ma.
The same mass will have different weights on the Earth as on the Moon because the two bodies have different gravitational accelerations.
But you don't believe in planets, so you probably dismiss what I just said as nonsense. I encourage you to read my recent post about things I have observed with my own eyes while looking at the moon through my telescope.
w = mg
Where w = weight, m = mass, and g = acceleration due to gravity. It's a special case of Newton's Law, F = ma.
The same mass will have different weights on the Earth as on the Moon because the two bodies have different gravitational accelerations.
But you don't believe in planets, so you probably dismiss what I just said as nonsense. I encourage you to read my recent post about things I have observed with my own eyes while looking at the moon through my telescope.
DrWatson · 70-79, M
@TBIman The amount of weight that mass produces depends on the strength of the gravitational field the mass is in. I have already explained that, and I am sure that I am not the first to have said it.
What you say about telescopes is false. Through my telescope, I have seen, first hand, that Mars rotates. I have seen shadows of lunar mountains cast on the plains. I have seen a meteor strike the moon. At high magnification, it is easy to see that the lunar landscape is strewn with rocks. Again, I invite you to read my recent post about what can be seen on the moon through a telescope. It is not true that all you see through a scope is moving lights!
Two parting thoughts:
1) If gravity is not real, how do you explain the results of the Cavendish experiment? Some science museums have this set up so that visitors can perform the experiment themselves.
2) If the earth does not rotate, how do you explain the motion of a Foucault pendulum?
But you will keep repeating the same memorized lines over and over, completely ignoring any evidence that people show you to the contrary. For example, any time, from now on, that you say that all one can see through a telescope is moving lights, you will be consciously lying! And you know it. And you have conveniently ignored the things I have said to counter your other claims.
If by chance you cling to this worldview for Biblical reasons, you must know that many Christians (like me) accept modern science. And you must also know that lying is not God-like behavior.
(If that last part does not apply to you, skip it. But it probably applies to some of the people who read this.)
Good bye.
What you say about telescopes is false. Through my telescope, I have seen, first hand, that Mars rotates. I have seen shadows of lunar mountains cast on the plains. I have seen a meteor strike the moon. At high magnification, it is easy to see that the lunar landscape is strewn with rocks. Again, I invite you to read my recent post about what can be seen on the moon through a telescope. It is not true that all you see through a scope is moving lights!
Two parting thoughts:
1) If gravity is not real, how do you explain the results of the Cavendish experiment? Some science museums have this set up so that visitors can perform the experiment themselves.
2) If the earth does not rotate, how do you explain the motion of a Foucault pendulum?
But you will keep repeating the same memorized lines over and over, completely ignoring any evidence that people show you to the contrary. For example, any time, from now on, that you say that all one can see through a telescope is moving lights, you will be consciously lying! And you know it. And you have conveniently ignored the things I have said to counter your other claims.
If by chance you cling to this worldview for Biblical reasons, you must know that many Christians (like me) accept modern science. And you must also know that lying is not God-like behavior.
(If that last part does not apply to you, skip it. But it probably applies to some of the people who read this.)
Good bye.