Question

If fire exert gravitational pull why it does not fall

Answer 1

Answer:

Explanation:

Of course gravity works on fire.

Let me clear a concept. Gravity is a force earth exerts on every particle of universe. Well, gravity is an attractive nature of force every particle with mass exerts on every other particle with mass. But we will take here only about Earth's gravity.

The thing here is, Gravity is not the only force in universe. There are many other forces. Just Google them.

Answer 2

Answer:

The left one is a candle under earth’s gravity whereas the right one is under microgravity.

Now in one image, you can see an elongated flame while in another a spherical flame.

But why this happens?

if we consider gravity as a force then we can assume that the force is pulling everything down towards the center of the earth.

Now when we light up a candle, the flame is going against the gravitational force because it is ignited by the observer. You might call it buoyant force which is considered as an upward force of a fluid.

Here the flame is exerting the gas against the surrounding air’which is colder and has more weight. Due to earth’s gravitational field and the air pressure, the fire appears to look elongated.

In another way, the space-time curvature of earth holds the surrounding of the flame together. Therefore the flame is arranged in a way that gives bright yellowish light.

In microgravity or in space, the curvature of space-time is not there or it’s weak. Therefore the fire particles are expanded and form a spherical blue looking fire.

The flame burns slow there due to the slow movement of oxygen to the flame. The liberated heat and gases also move slowly to form the weird looking fire. The process of combustion is slow there.

In a weak gravitational field, when the observer sees the flame, the wavelength of it decreases and it appears to be bluish.

So we can say, the fire we see is a result of gravity.

The electric spark we see also is a result of gravity. If gravity was not there this would not happen. Whether it’s created in zero gravity or here on earth, gravity will act on there in a discrete way or centered way.

Everything is affected by the force of gravity.

If a flame exerts a force, that’s also because of gravity. It simply means it affects everything if you don’t consider it only a force on earth’s surface. Sun has its gravity, planets have theirs. And that’s the force of nature. It's empirical.