ANOTHER EXPERIMENT: Gravity Doesn't Exist

Flat Earth is coming to schools???
Yeah free fall object has to do with flat earth + Downwards Universal Deceleration. 👌

Ducking hell.

Hot air is less dense so it rises.

Flat Earth is coming to schools???
Yeah free fall object has to do with flat earth + Downwards Universal Deceleration. 👌

You're joking, right?

fire is made of boner

Even the smaller mass the easier to fall, if gravity existed.

About boner, that's a good info. Let me research about it later. 👌

Even the smaller mass the easier to fall, if gravity existed.

Not if it has to push denser mass out of the way.

Do it in a vacuum and see what happens.

Quote from: Danang on January 18, 2021, 08:05:54 PM

Even the smaller mass the easier to fall, if gravity existed.

Not if it has to push denser mass out of the way.

Do it in a vacuum and see what happens.

Do it in a vacuum! What would you expect with no oxygen to support combustion?... unless like on a spacecraft the lighter had both fuel and an O2 supply.

Quote from: Danang on January 18, 2021, 08:05:54 PM

Even the smaller mass the easier to fall, if gravity existed.

Not if it has to push denser mass out of the way.

Do it in a vacuum and see what happens.

In vacuum, with rocket toy experiment, the fire goes horizontal. The smoke ain't fall in 1g.

So you try again 

Quote from: JackBlack on January 19, 2021, 12:57:45 AM

Quote from: Danang on January 18, 2021, 08:05:54 PM

Even the smaller mass the easier to fall, if gravity existed.

Not if it has to push denser mass out of the way.

Do it in a vacuum and see what happens.

In vacuum, with rocket toy experiment, the fire goes horizontal. The smoke ain't fall in 1g.

So you try again 

You think?   Think again.

Quote from: JackBlack on January 19, 2021, 12:57:45 AM

Quote from: Danang on January 18, 2021, 08:05:54 PM

Even the smaller mass the easier to fall, if gravity existed.

Not if it has to push denser mass out of the way.

Do it in a vacuum and see what happens.

In vacuum, with rocket toy experiment, the fire goes horizontal. The smoke ain't fall in 1g.

So you try again 

Fluid dynamics does not state it would fall at one G. Try again.

In vacuum, with rocket toy experiment, the fire goes horizontal. The smoke ain't fall in 1g.

No, not a rocket fire. You need it to basically sit there, not fly out so it would hit the side of the container before it has a chance to fall.
So try again.

Or just acknowledge the much denser air around the flame in your experiment and thus accept it is 100% in accordance with gravity.

The fire goes horizontal. The smoke is not strong enough to lift the fire like in open air.



The bonus:
In aeronautic, thrust requires a closed system -- in which there is glass wall -- for realizing action-reaction mechanism.

Dome is Real. 

The fire goes horizontal. The smoke is not strong enough to lift the fire like in open air.



The bonus:
In aeronautic, thrust requires a closed system -- in which there is glass wall -- for realizing action-reaction mechanism.

Draw a force diagram.

Rocket engines don’t need a glass wall.

@Sokarul

So.. what makes action-reaction mechanism?

The rocket toy accepts a reaction because of the smoke hitting from behind, or from reverse direction of the action. And it requires a closed system in which there is a wall resisting the smoke, so that the smoke goes back towards the rocket toy to make a thrust.

Vacuum cannot give the thrust as you saw at the beginning of the firing. After the smoke sufficiently fill the cylinder, it's not vacuum anymore.

Magical reaction? 

Nope.

There is a 100+ page thread stating you are wrong.


Thrust comes from the velocity and mass of exhaust of the rocket. Equal and opposite of it.

The fire goes horizontal.

Yes, because of how fast it is going.
You can do the same with a jet lighter in open air.

In aeronautic, thrust requires a closed system

Nope. It requires action-reaction.
A closed system cannot develop thrust, the centre of mass must remain moving without any change.

Planes work by moving air, the action-reaction pair is accelerating the air backwards and accelerating the plane forwards.

A rocket works in a similar manner, but provides its own air, the pair is the air/exhaust accelerating backwards, and the rocket accelerating forwards.

Vacuum cannot give the thrust as you saw at the beginning of the firing.

No, even at the beginning it gives thrust. What you are confused about is the ignition of the rocket is not simultaneous. It starts off at a very low power, and then rapidly builds up.
So the thrust increases as it all starts burning.

If you wish to disagree, tell us what accelerates the air backwards to leave the rocket.

@Sokarul

So.. what makes action-reaction mechanism?

The rocket toy accepts a reaction because of the smoke hitting from behind, or from reverse direction of the action. And it requires a closed system in which there is a wall resisting the smoke, so that the smoke goes back towards the rocket toy to make a thrust.

Vacuum cannot give the thrust as you saw at the beginning of the firing. After the smoke sufficiently fill the cylinder, it's not vacuum anymore.

It’s really quite a display of ignorance on this thread. Fire of course points upwards! For thousands of years candles and other wick based light sources have used flames for illumination and they have all pointed upward! As for them proving gravity does not exist!!!
 A ball kicked or thrown upwards will move in that direction. You whenever you stand or raise arm or head are opposing gravity..... what happens when you trip? Or when the ball stops rising after being kicked. Or you drop a cup or plate?
If you cant even understand those simple concepts what makes you think you can understand and comment on rocked based combustion and thrust?

Vacuum cannot give the thrust as you saw at the beginning of the firing. After the smoke sufficiently fill the cylinder, it's not vacuum anymore.

Rockets are actually more efficient in a vacuum. As you can see in the equation for thrust, when P0 (atmospheric pressure) is zero then the thrust is at its maximum.

 

Wow you guys read a book and then you forward its idea without question. 

Thrust ain't have to do with what's in the book. It also ain't magic.
Thrust is real, it needs a hitting by the air mass from behind. It's the closed system that allows such thrust.

Back to my experiment...

My proposition is Downwards Universal Deceleration in which the entire earth's close system -- along with the air -- is hit by the velociting downwards fire which in turn will make the fire goes upwards.
(Or if you use UA model: 👉 the air hit the fire upwards).

Let's be simple.

If the lighter's fire goes upwards, it NEEDS some amount of energy from below to make it goes upwards.

WHAT IF the position of the lighter is changed to be 👉 vertical (not horizontal as shown in the video),



In order to make the fire goes horizontal, you need to store similar amount of energy, say, with mouth blowing, while you know a horizontal "magnet" doesn't count. It's irrelevant.

Precisely, if you blow the fire from the left side, the fire will go rightwards. No magnet from the left to pull the fire leftwards.

"Left side magnet doesn't exist".

If you claim there is a magnet at the left side. It might be the case only in the dream.👌

Thrust is real

Yes, thrust for a rocket is real. All it needs is to be expelling gas/exhaust behind it,

Again, all it takes is a simple question:
What accelerates the exhaust to cause it to leave the rocket at such high velocity?

That demands a reactionary force which can only act on the rocket.

Back to my experiment...

You mean your experiment that is entirely consistent with gravity where the low density gas rises due to all the much denser gas around it?

Like I said, if you want to use this as evidence against gravity, you need to remove all that low density gas around it, yet still have it slow.

The only other option would be to light it in a 0-g environment.

Either way, a flame like that doesn't work well.

Wow you guys read a book and then you forward its idea without question. 

Thrust ain't have to do with what's in the book. It also ain't magic.
Thrust is real, it needs a hitting by the air mass from behind. It's the closed system that allows such thrust.

Back to my experiment...

My proposition is Downwards Universal Deceleration in which the entire earth's close system -- along with the air -- is hit by the velociting downwards fire which in turn will make the fire goes upwards.
(Or if you use UA model: 👉 the air hit the fire upwards).

Let's be simple.

If the lighter's fire goes upwards, it NEEDS some amount of energy from below to make it goes upwards.

WHAT IF the position of the lighter is changed to be 👉 vertical (not horizontal as shown in the video),



In order to make the fire goes horizontal, you need to store similar amount of energy, say, with mouth blowing, while you know a horizontal "magnet" doesn't count. It's irrelevant.

Precisely, if you blow the fire from the left side, the fire will go rightwards. No magnet from the left to pull the fire leftwards.

"Left side magnet doesn't exist".

If you claim there is a magnet at the left side. It might be the case only in the dream.👌

Because of density (p = m/v), hot air rises. This is because, when something has an increase in energy, its molecules become more active and "bounce" around, thus becoming less dense. When this happens to a certain degree, it becomes less dense than the surrounding air, thus, it can float. It's not because of any Downwards Acceleration mumbo jumbo; just simple math and physics. And because of Newton's third law, when you blow it on the left side, it goes rightwards.

No air needed.

If such blowing from below doesn't exist, how can you certain that gravity produce air dense on the ground? (Which is also doesn't exist).

The thing is, our universe is traveling downwards so that the detached fire -- with faster velocity than the earth -- gets colided against the decelerating air, which in turn makes the fire goes up as much as the vertical fire (as comparison) goes horizontal.
Where is such blowing energy?

Try again 

If such blowing from below does exist, how can you certain that gravity produce air dense on the ground?

Measurements of it and simple logic.

There are quite a few ways to explain it. One is like this:

Any layer of air needs to support all the weight of the air above.
As you go down through the air, more and more weight is added, and thus the pressure increases.

You can also do some simple math. If you have a column, with an cross sectional area of A, and a height of h, with the pressure pushing down at the top of P, the column is made of air with a density of p:
The volume of the column is A*h.
The mass is p*A*h.
The weight is g*p*A*h.
The force due to the pressure at the top is P*A.
The force at the bottom is P*A + g*p*A*h
The pressure at the bottom is (P*A + g*p*A*h)/A=P+g*p*h

And this pressure is hydrostatic. If it wasn't constant at the bottom, the higher pressure would push outwards.
So if you have 2 columns of air, side by side, where they each have a different density, the greater density air will push the lower density air out of the way, pushing it up so the more dense air falls and the less dense air rises.


This is also why and other fluids are self-leveling.

Try again 

Why? You are the one who needs to try again.
You still haven't got your candle flame without gas around it, nor have you got a flame in 0g.

No air needed.

In a one of your vacuums, is he?

Quote from: sokarul on January 20, 2021, 01:07:38 PM

No air needed.

In a one of your vacuums, is he?

The air plays no significant role, as easily demonstrated by varying the weight of the thrown object while keeping the volume the same.

And the simple question, what force accelerates the ball and what is the reactionary force in that force pair?

fire is made of boner

Unfortunately yours wouldnt make too big of a fire :/

Quote from: sceptimatic on January 21, 2021, 03:20:23 AM

Quote from: sokarul on January 20, 2021, 01:07:38 PM

No air needed.

In a one of your vacuums, is he?

The air plays no significant role, as easily demonstrated by varying the weight of the thrown object while keeping the volume the same.

And the simple question, what force accelerates the ball and what is the reactionary force in that force pair?

You have to look at how much air in front of the person is being pushed away and actually replaced.


The medicine ball is dense. It is much much less porous than a air filled ball of a similar size....meaning, it displaces much more air by its overall dense mass.

The person who uses their own energy to not only pick it up, also uses it to throw that ball, meaning they add the movement of their own mass against the air around that movement. In this case, their bent to outstretched arms.


Once that ball is pushed into the air....and notice the angle it is thrown at..... that ball compresses the air it's pushed into whilst the air it was initially displacing rushes in, immediately to fill that lower pressure void, causing a crash back towards the person who threw it, which moves that person a little.

It has absolutely everything to do with air and it has everything to do with equal action and reaction upon the overall dense mass of the objects in play..