If I jump in the air why doesn't the ground move @ 1000MPH?

The big question here is what is it about downwards that attracts the densest materials?

Why not to the side, or upwards?

In the absence of gravity there's nothing special about downwards.

You said the floor BECOMES more dense than the table. Concentrate on what happens to the table when I let go. Why does it go down when the air pressure will be the same above and below it?

You know when molecules/matter/elements are stacked according to their density, the heaviest in terms of density are at the bottom, in terms of sea level atmospheric pressure, it's the air we breathe.
Put something more dense into that atmosphere and it naturally will become denser with the atmosphere sitting on top of it.
If your energy is used to lift it's density against that atmosphere, then you have caused it's motion against it, which will compress the air above it, until you stop,
Once you stop, the air equalizes all around the table but your energy is sill holding that table, so if you drop it. It naturally going to fall under it's own dense weight which the air under it is powerless to stop as all it can do is compress, so creating a friction that fills a lower pressure void above as that friction is directed back above.

It works no different going up, down or horizontally.

So now you are saying that differences in density are the cause of the downward movement.  Not air pressure?

Here's a clue: DENPRESSURE. Trying to twist stuff will end up with none compliance. Think carefully.

In your scenario, this is how I am seeing it.

Then read and absorb stuff and stop looking for back slaps off your fellow peers in your attempts to twist stuff.

I lift the table, it compresses the air above it.  This causes a high pressure area above it.  Pushing it down correct?

I let the air pressure equalize so now there is equal pressure , it actually has a slightly higher pressure under it but so insignificant we will call it equal, all around it.  Correct?

As long as you hold it perfectly still with no movement then we can call it equal.

I let go of the table, then for some reason, density takes over and pulls it down despite the air pressure being equal all around it. Correct?

Nothing pulls it down. The table itself pushes down because you put it into a place where it's density wouldn't naturally be.

What causes this to happen if everything works on air pressure? 
The way I see it, in your scenario where everything works on air pressure, if air pressure is equal all around an object, it should remain where it is put.

The density of the object, itself.

and the reason dense stuff naturally moves to below less dense is.... Gravity.

How do you measure the density of an object and how does density change by moving it?

How do you measure the density of an object?

With a Greek fellow and a bath.

I'm not entirely sure the Greek is necessary and to be frank he makes me a bit uncomfortable, but why take the chance?

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

Density is defined as mass divided by volume.  Copper is 8940kg per cubic metre.  Agree?

Quote from: sceptimatic on January 13, 2014, 11:18:36 AM

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

Density is defined as mass divided by volume.  Copper is 8940kg per cubic metre.  Agree?

I'm not interested in what weighs what, because I'm basically saying it's the state of ALL matter.
A sugar cube is less dense than a equal sized cube of lead, etc, etc, etc.
Water is more dense than air.
Molten gold is more dense than molten steel.

How do you measure gravity?

Do you agree with my  experimental setup ?
Can you now give some predictions, following your model ?

On other side :
Do you agree with these observations :

An object when pushed by a force or a bunch of unbalanced forces will start accelerating.
The harder the push, the greater the acceleration
Heavier objects need more force than lighter ones to achieve the same acceleration.

Quote from: inquisitive on January 13, 2014, 11:29:54 AM

Quote from: sceptimatic on January 13, 2014, 11:18:36 AM

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

Density is defined as mass divided by volume.  Copper is 8940kg per cubic metre.  Agree?

I'm not interested in what weighs what, because I'm basically saying it's the state of ALL matter.
A sugar cube is less dense than a equal sized cube of lead, etc, etc, etc.
Water is more dense than air.
Molten gold is more dense than molten steel.

How do you measure gravity?

Not interested in what weighs what followed by statements of equality in which the relevant pieces of information are the values of density that are being compared. This guy is such a moron. Don't try to beat him at his game. Soon as you do he blocks you.

Do you agree with my  experimental setup ?
Can you now give some predictions, following your model ?

I'm sill not sure what you are getting at. Go through it clearly.

On other side :
Do you agree with these observations :

An object when pushed by a force or a bunch of unbalanced forces will start accelerating.

Yes.

The harder the push, the greater the acceleration

No.

Heavier objects need more force than lighter ones to achieve the same acceleration.

no.

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

By measuring the rate at which objects accelerate toward the center of the Earth when dropped, which is 32 feet per second squared (9.8 meters per second squared).

Quote from: sceptimatic on January 13, 2014, 11:18:36 AM

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

By measuring the rate at which objects accelerate toward the center of the Earth when dropped, which is 32 feet per second squared (9.8 meters per second squared).

And what conditions are these measured in?

And what conditions are these measured in?

What do you mean?

Quote from: TPMS on January 13, 2014, 12:01:48 PM

Quote from: sceptimatic on January 13, 2014, 11:18:36 AM

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

By measuring the rate at which objects accelerate toward the center of the Earth when dropped, which is 32 feet per second squared (9.8 meters per second squared).

And what conditions are these measured in?

Often in a school classroom.

Quote from: Antonio on January 13, 2014, 11:46:46 AM

The harder the push, the greater the acceleration

No.

Quote from: Antonio on January 13, 2014, 11:46:46 AM

Heavier objects need more force than lighter ones to achieve the same acceleration.

no.

Are you serious? I thought your intelligence couldnt surprise me anymore..

Let's face it guys.....

sceptimatic has absolutely NO idea what constitutes gravity, force, pressure, mass or density.

I have to say it's been a long time—if ever—that I've come across somebody with so little knowledge about high school science. 

It's so pathetic one can only laugh.  And ignore his nonsensical questions.

Quote from: inquisitive on January 13, 2014, 11:29:54 AM

Quote from: sceptimatic on January 13, 2014, 11:18:36 AM

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

Density is defined as mass divided by volume.  Copper is 8940kg per cubic metre.  Agree?

I'm not interested in what weighs what, because I'm basically saying it's the state of ALL matter.
A sugar cube is less dense than a equal sized cube of lead, etc, etc, etc.
Water is more dense than air.
Molten gold is more dense than molten steel.

How do you measure gravity?

So are you suggesting that a cube of lead would squeeze itself through a cube of sugar because the lead is more dense than the sugar?
Because according to your denpressure, the density would pull it through because of the air pressure on top of it.  Right?

Quote from: sceptimatic on January 13, 2014, 11:40:34 AM

Quote from: inquisitive on January 13, 2014, 11:29:54 AM

Quote from: sceptimatic on January 13, 2014, 11:18:36 AM

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

Density is defined as mass divided by volume.  Copper is 8940kg per cubic metre.  Agree?

I'm not interested in what weighs what, because I'm basically saying it's the state of ALL matter.
A sugar cube is less dense than a equal sized cube of lead, etc, etc, etc.
Water is more dense than air.
Molten gold is more dense than molten steel.

How do you measure gravity?

So are you suggesting that a cube of lead would squeeze itself through a cube of sugar because the lead is more dense than the sugar?
Because according to your denpressure, the density would pull it through because of the air pressure on top of it.  Right?

Dude you cant compare air with sugar, the air is invisible, it obviously has magical propierties wich will be explained shortly.

Quote from: Antonio on January 13, 2014, 11:46:46 AM

Heavier objects need more force than lighter ones to achieve the same acceleration.

no.

That's amazing.

Perhaps you should tell the world strongest man competition that their entire setup needs revamping.

How do you measure gravity?

Take a known mass and weigh it; time the swing of a pendulum of known mass; time the fall of a dropped object over a given distance.

EDIT: For the example of the table, the atmospheric pressure on the lower side of the table top (assuming still air and a 5cm thick table top) would be 0.6Pa greater than the atmospheric pressure on the top side. Over a 2m² surface, this would be a total upwards force of 1.2N (about 0.26lb_f).

Quote from: Antonio on September 05, 2013, 12:00:37 AM

The flat earth purportedly accelerates at a 9.8 m/s^2 rate. If I stood there and look up I should feel a stronger and stronger wind coming downwards, as earth is rushing into the atmosphere. But it doesn't

This is all the proof you need to know the Earth cannot possibly be forever accelerating upwards.

I know this point has probably been brought up many times, but thought I would share it.

With a round Earth, now it makes sense. The Earth spins, that is it, simple. No UA, no proof of UA... while it is possible to prove the UA isn't there, you feel the wind and the Earth stays where it is.

The air is pushed upwards at the same rate as the Earth.  This is why we do not feel air rushing downwards.

I have another question. One problem that I have with the flat earth theory is that according to the flat earth theory, the Earth is constantly accelerating upward at 32 feet per second squared (9.8 meters per second squared). If this were true, we would always feel this constant movement since the human body senses acceleration. One example of this is when you drive a car. While accelerating, you can feel that you're moving. However, once you start moving at a constant velocity (i.e., when you're no longer accelerating), it feels as though you're not moving.

EDIT: removed extraneous information

Quote from: jroa on September 05, 2013, 12:24:40 AM

Quote from: Antonio on September 05, 2013, 12:00:37 AM

The flat earth purportedly accelerates at a 9.8 m/s^2 rate. If I stood there and look up I should feel a stronger and stronger wind coming downwards, as earth is rushing into the atmosphere. But it doesn't

This is all the proof you need to know the Earth cannot possibly be forever accelerating upwards.

I know this point has probably been brought up many times, but thought I would share it.

With a round Earth, now it makes sense. The Earth spins, that is it, simple. No UA, no proof of UA... while it is possible to prove the UA isn't there, you feel the wind and the Earth stays where it is.

The air is pushed upwards at the same rate as the Earth.  This is why we do not feel air rushing downwards.

I have another question. One problem that I have with the flat earth theory is that according to the flat earth theory, the Earth is constantly accelerating upward at 32 feet per second squared (9.8 meters per second squared). If this were true, we would always feel this constant movement since the human body senses acceleration. One example of this is when you drive a car. While accelerating, you can feel that you're moving. However, once you start moving at a constant velocity (i.e., when you're no longer accelerating), it feels as though you're not moving.

EDIT: removed extraneous information

The equivalence principle says gravitation and acceleration are locally indistinguishable. However, sceptic's air "theory" would not be a the force is coming from the top. You would feel constant force.

Quote from: sceptimatic on January 13, 2014, 11:58:35 AM

Quote from: Antonio on January 13, 2014, 11:46:46 AM

The harder the push, the greater the acceleration

No.

Quote from: Antonio on January 13, 2014, 11:46:46 AM

Heavier objects need more force than lighter ones to achieve the same acceleration.

no.

Are you serious? I thought your intelligence couldnt surprise me anymore..

Very serious. Instead of getting all frustrated. Look into why I said it.

Let's face it guys.....

sceptimatic has absolutely NO idea what constitutes gravity, force, pressure, mass or density.

I have to say it's been a long time—if ever—that I've come across somebody with so little knowledge about high school science. 

It's so pathetic one can only laugh.  And ignore his nonsensical questions.

This has been tried time and time again and it still has no effect. What you tell me I know or don't know, means absolutely nothing to me.
Keep laughing because that's all you have. 

Quote from: sceptimatic on January 13, 2014, 11:40:34 AM

Quote from: inquisitive on January 13, 2014, 11:29:54 AM

Quote from: sceptimatic on January 13, 2014, 11:18:36 AM

Quote from: inquisitive on January 13, 2014, 11:06:41 AM

Quote from: sceptimatic on January 13, 2014, 10:51:16 AM

Quote from: inquisitive on January 13, 2014, 10:48:11 AM

How do you measure the density of an object and how does density change by moving it?

How do you measure your fictional gravity?

You write about the importance of density, what's the definition?

The state of all matter.
How do you measure gravity?

Density is defined as mass divided by volume.  Copper is 8940kg per cubic metre.  Agree?

I'm not interested in what weighs what, because I'm basically saying it's the state of ALL matter.
A sugar cube is less dense than a equal sized cube of lead, etc, etc, etc.
Water is more dense than air.
Molten gold is more dense than molten steel.

How do you measure gravity?

So are you suggesting that a cube of lead would squeeze itself through a cube of sugar because the lead is more dense than the sugar?
Because according to your denpressure, the density would pull it through because of the air pressure on top of it.  Right?

Pulling these strokes is not going to get you anywhere. I'm sure you're a little bit smarter than this.

Quote from: sceptimatic on January 13, 2014, 11:40:34 AM

How do you measure gravity?

Take a known mass and weigh it; time the swing of a pendulum of known mass; time the fall of a dropped object over a given distance.

EDIT: For the example of the table, the atmospheric pressure on the lower side of the table top (assuming still air and a 5cm thick table top) would be 0.6Pa greater than the atmospheric pressure on the top side. Over a 2m² surface, this would be a total upwards force of 1.2N (about 0.26lb_f).

Oh, so you swing a pendulum and time the fall and that's your gravity sorted, after weighing the object on scales that are calibrated under atmospheric pressure. Oh, ok.