Rockets need an atmosphere to propel

Clearly the chamber is not a vacuum when you can see the buildup of smoke. You must be stupid to think a container filled with smoke can be under vacuum.

Rockets have a combustion chamber with tons of pressure, all of this pressure is forced to exit in one general direction out the nozzle.

This mass of this gas would naturally expand in all directions if it wasn't forced out in one direction.

It's this forcing out of the gas in one direction that propels the rocket.

If this doesn't convince you then nothing will.

Rockets have a combustion chamber with tons of pressure, all of this pressure is forced to exit in one general direction out the nozzle.

The mass of this gas would naturally expand in all directions if it wasn't forced out in one direction.

It's this forcing out of the gas in one direction that propels the rocket.

If this doesn't convince you then nothing will.

There is no force. Air and other objects move out of the pipe, mass expelled, there is no opposite reaction on the scale. You can do this yourself at home. Make a container with your hand and see if you feel the opposite reaction.

When wind blows towards your back, the air in front of your face also moves away from your face, did you feel the opposite reaction on your face?

Then why is no force on the scale? Pressure in the pipe is forced out in one general direction. What is your point?

Clearly the chamber is not a vacuum when you can see the buildup of smoke. You must be stupid to think a container filled with smoke can be under vacuum.

"For every action there is an opposite reaction."

That is a fundamental law of physics 101.

Also known as Newton's third law of motion, it explains why things move because of the force applied to them.

Like the wind against my face for instance.

Simple question: What pushes the wind against my face?

By your reasoning because the atmosphere is there I should not feel anything and there should be no movement.

The pennies in the tube lift because of the sudden rush of air out the tube, but if the vacuum process is slowed down to a point where the extraction of the gases in the tube isn't enough to lift the penny, then the penny won't move at all.

The variable in your experiment is the speed at which you extract the air inside the tube, you are doing it at a high speed fast enough to raise the weight of a penny.

The pressure in the pipe is pulled out via a pump, the pipe isn't doing any work.

A better experiment would be to put a pressurized pipe inside a vacuum, then open a valve to release the air in the pipe.

You're new here. I see that.

We've been through this TOO MANY TIMES!

Inertia....PHYSICS
a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.

The rocket creates it within the structure. The structure feels the force...and you have movement.

Trust me, I was a denier too. But we are up there. Doesn't mean I think we're doing good thing's with all our knowledge.

We could be better if not for the evil force of fear and destructiveness.

Those two make a person manipulated. And corrupt whatever could be used for good, and turns it and us into evil beings....sometimes.



I pray for us everyday...but our only hope is in the Salvation God has provided! For we CANNOT save ourselves.

now i know your trolling

Simple proof, rockets don’t work in space vacuum: get a pipe with only one side open. Put closed face down on a scale. Remove the air from the pipe with vacuum. Where is the opposite force on the scale? I didn’t see it.

Now lets say you put an object, let say a few pennies that weight approx 3 grams each. Now the airflow is strong enough to lift those pennies against gravity. Shouldn’t I see a force greater than the normal force of the pennies?

Source from nasa states that the force it takes for the mass to move out from the rocket, is applied equally and oppositely on the rocket. Now the pipe experiment disproves this as there is no evidence of opposite force onto scale when air or even objects in the pipe move out.

Additionally, Joules expansion shows that no work is done when gas expands into a vacuum. Furthermore, thermodynamics states. Work=-external pressure *change in volume. If external pressure of space is 0, work done is 0.

Furthermore, NASA tends to concentrate on velocity rather than flow rate. Use of a nozzle. A smaller diameter pipe, increases the velocity, but leaves the flow rate unchanged. Flow rate is dependent on pressure differential. [link to www.1728.org]

If velocity (meters per second) is of importance rather than flow (kilograms/second), it makes more sense that the gas pushes off the atmosphere. Similarly, a car going at faster speed would generally have more drag.

Just like energy is required to move objects to a higher height (gravitational potential), energy is required to create pressure (energy from combustion). Therefore gravity and pressure are both potential energies.

To sum it all up, when you drop an object from a height, there is no opposite reaction on your hand because gravity causes a force (Force=mass*acceleration). Similarly, pressure gradient also causes a force [link to en.m.wikipedia.org (secure)]

It's not a turtle. It's a toad. Whenever a toad swallows an insect, it uses its eyeballs to push the prey down its throat. So whenever a ship falls of the edge of the flat earth, the toad eats it, and as it's eyeball disappears you see the sun or moon. When the toad wakes up it's eyeball pops up, partially blocking the sun and or moon. That's how you get eclipses.

Glad I could clear that up for you.

The movement is simply due to pressure difference. This movement is not the same as throwing or pushing an object. If the air flow is strong enough to lift the penny, the force must be at least greater than the normal force of the penny. But this is not seen on the scale, therefore, equal and opposite reaction does not happen.

Simple proof, rockets don’t work in space vacuum: get a pipe with only one side open. Put closed face down on a scale. Remove the air from the pipe with vacuum. Where is the opposite force on the scale? I didn’t see it.

Now lets say you put an object, let say a few pennies that weight approx 3 grams each. Now the airflow is strong enough to lift those pennies against gravity. Shouldn’t I see a force greater than the normal force of the pennies?

Source from nasa states that the force it takes for the mass to move out from the rocket, is applied equally and oppositely on the rocket. Now the pipe experiment disproves this as there is no evidence of opposite force onto scale when air or even objects in the pipe move out.

Additionally, Joules expansion shows that no work is done when gas expands into a vacuum. Furthermore, thermodynamics states. Work=-external pressure *change in volume. If external pressure of space is 0, work done is 0.

Furthermore, NASA tends to concentrate on velocity rather than flow rate. Use of a nozzle. A smaller diameter pipe, increases the velocity, but leaves the flow rate unchanged. Flow rate is dependent on pressure differential. [link to www.1728.org]

If velocity (meters per second) is of importance rather than flow (kilograms/second), it makes more sense that the gas pushes off the atmosphere. Similarly, a car going at faster speed would generally have more drag.

Just like energy is required to move objects to a higher height (gravitational potential), energy is required to create pressure (energy from combustion). Therefore gravity and pressure are both potential energies.

To sum it all up, when you drop an object from a height, there is no opposite reaction on your hand because gravity causes a force (Force=mass*acceleration). Similarly, pressure gradient also causes a force [link to en.m.wikipedia.org (secure)]

I see you are still confused...

The penny moves because of the (Giovanni Battista) Venturi principle, which describes how lift is created by a difference in air pressure, or that when air pressure is lower on one side of an object than the other that low pressure side rises.

It's why wings work and has nothing to do with rocket motors.

So if I was standing on a perfectly frictionless airless ice rink for example and threw a basketball away from me what would happen OP? Nothing? Or something? Work it out yourself.

They propel against their own material they eject from the rocket.

The ejected material doesn't all get instantly sucked into the vastness of space a lot of it stays huddled near the ejection site.

That's what the rocket is actually pushing against.