![]() In other words, pressure depends on what's above you and wouldn't necessarily match the decrease in gravity.Īlthough the idea of getting to the center of Earth to safely test in a one atmosphere environment can only be done in a thought experiment. Of course, eventually you'd hit molten rock hot enough to melt your tunnel and then you would suddenly feel the pressure of all the matter above you trying to replace your personal space with molten rock. Air's not very dense, so the pressure increase wouldn't be as extreme as diving underwater. If you had a tunnel to the center of the Earth, it wouldn't be the weight of rocks above you that would increase the pressure - it would be the weight of the air above you. In the sea, you feel the weight of all the water above you trying to replace your personal space with water. Pressure is due to the weight of anything above you. Each and every molecule in your body would be affected by a balanced gravitational field, so your body wouldn't feel any outward gravity. The only way you could experience any outward gravity is if left side of your body was only gravitationally affected by the mass on the left side of your body and the right side of your body was only affected by the mass on the right side. Any mass further away from the center of Earth than you will be canceled out. ![]() Gravity and pressure are two separate things, but they are somewhat indirectly related. Is there a relationship between gravity and pressure in this context? Is this correct?īut if so, even being in zero gravity does anyway still mean that you have huge pressure from every direction? Shouldn't gravity from the surrounding matter "pull you outward in every direction" instead of pulling you down as it does in the surface? It may also seem common sense that the very centre of the Earth must be an ingravity place, because you have just the same amount of matter in any direction surrounding you. It seems common sense that as you go deeper into the Earth (eg with your feet towards the center) you will feel increasing pressure from the matter on top of you, that's what happens in deep sea. ![]()
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