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wow.Thats so kool what replies I got.Its all in the SUBJECT words.I too believe that we are pushed to the earth,not pulled.what are your thoughts anyone?
the moon has a sodium atmosphere.
Why is there more pressure the deeper we go in water.Its buoyancy that's keeps all that we see pushed to the ground like a helium balloon is pushed to ur ceiling in ur living room.
If a feather and bowling ball were dropped at the same time in a near perfect vacuum,99.99999% vacuum,the objects fall extremely slowly towards the ground.why.The other .001111111% gases are doing the pushing on the objects maybe.Gallileo experiment.
I think the hypothesis here is backwards:It is proposed that atmospheric pressure causes gravityWhen in fact gravity causes atmospheric pressure Atmospheric pressure is caused by gravity, but it is a very non-linear relationship, sincea very light body (like the Moon) will lose virtually all its atmospherewhile a heavier body (like the rocky core of Jupiter) will retain almost all its atmosphere, including hydrogen & heliumSo this hypothesis badly underestimates the gravity on the Moon, and overestimates the gravity on JupiterAtmospheric pressure is also affected by multiple other factors, like:Strength of the Solar Wind: This is very strong near Mercury, and much weaker out past Jupiter. The solar wind can tear away at the upper atmosphere.Strength of the planetary magnetic field: A strong magnetic field (like Earth or Jupiter) tends to deflect the more energetic outbursts of the solar wind around the planet. Temperature: A hot planet like Venus will drive all liquids and gases into the atmosphere, producing an enormous atmospheric pressure. On the other hand, on Mars, liquid water is frozen out under the surface, producing a very low atmospheric pressure. However, the surface gravity of both bodies is similar.History: The position in the solar system where the planet formed, which determines how it reached its current mass. The orbits of planets in the Solar System does change over astronomical time periods.So any relationship between atmospheric pressure and gravity is very indirect, with lots of confounding factors. However, as Newton showed, mass causes gravity, and there is quite a simple relationship between the mass of the bodies, the distance between them, and the gravitational force of attraction between them.
Quote from: gazza711 on 08/11/2014 19:29:05wow.Thats so kool what replies I got.Its all in the SUBJECT words.I too believe that we are pushed to the earth,not pulled.what are your thoughts anyone?If gravity is a push-type force, why does it depend so much on the masses of the bodies involved? The force of gravity exerted by the Earth on my body is much more than the force that would be exerted by Mars, if I were on the surface of Mars. If it were something from outside pushing down, presumably the forces would be essentially the same since the "outside" of Earth is essentially the same as the "outside" of Mars.
Quote from: gazza711wow.Thats so kool what replies I got.Its all in the SUBJECT words.I too believe that we are pushed to the earth,not pulled.what are your thoughts anyone?I don't think you understand the different between something being pushed or pulled. It really only has meaning for macroscopic objects with a finite length, width and height.Push - To push something means that a force is exerted on the surface of the body directed into the body. Such a force acting in this way acts to compress the body. So you know something is being pushed if the body is being compressed along its length parallel to the direction of the force. Pull - A body is being pulled if a force is exerted on the surface of a body directed outward from the inside of the body. Such a force acts to extend the body. There will be a tension in the object under such a force.You could also drill a hole through the body and insert a rod and then exert a force on the rod. Then some parts of the body will be pushed while other parts will be pulled depending on where the rod is inserted. You could also grasp a rod with your hand and exert a force parallel to the rod's length. The part of the rod above the hand in the direction of the force is being pushed while the other part is being pulled.Gravity does neither of those since it exerts a force not simply on the surface of the object but on each point of the body at the same time.
Sure,so if water has the same characteristics as the air we breath,then we are dealing with the same thing at different temperatures.
So a balloon submerged deep in water.is it being pulled or pushed to the surface?
Gazza, PmbPhy told you what the distinction was between gravity and other types of forces. This is a very important point and you should take it on board. Unless you grasp the concept that gravity acts on every part of a body all at once you will be stuck in your incorrect way of viewing things. Forum members such as Alan, PmbPhy, Evan and Chiral, that are bothering to reply to you, know what they are talking about. By all means ask questions but make no assumptions that anything you believe is right simply because it has popped into your head.
Quote from: gazza711 on 20/06/2015 12:52:53Sure,so if water has the same characteristics as the air we breath,then we are dealing with the same thing at different temperatures. Speak for yourself, but I think most of our correspondents are mammals, not fish.
Quote from: gazza711 on 08/11/2014 20:06:42the moon has a sodium atmosphere.No it doesn't. Where did you get this (mis)information? The moon does have an atmosphere, but the pressure is about 3x10–15 times the pressure on Earth 99.999999999997% vacuum compared to Earth's atmosphere. Mostly it is made of helium, neon and hydrogen.Quote from: gazza711 on 08/11/2014 20:06:42Why is there more pressure the deeper we go in water.Its buoyancy that's keeps all that we see pushed to the ground like a helium balloon is pushed to ur ceiling in ur living room.There is more pressure under deep water because there is more water above you, and all of it is being pulled down by gravity.Buoyancy has to do with relative densities in a gravitational field. If the helium balloon has less mass than an equal volume of the air around it, the air around it will fall as it rises. This process will continue until the balloon reaches a point where the air around it has the same density, or until the balloon bursts.Quote from: gazza711 on 08/11/2014 20:06:42If a feather and bowling ball were dropped at the same time in a near perfect vacuum,99.99999% vacuum,the objects fall extremely slowly towards the ground.why.The other .001111111% gases are doing the pushing on the objects maybe.Gallileo experiment.No. The Gallileo experiment has been performed in near perfect vacuum, and the objects fall faster in vacuum than in air.//www.youtube.com/watch?v=5C5_dOEyAfk//www.youtube.com/watch?v=7eTw35ZD1Ig//www.youtube.com/watch?v=E43-CfukEgs (note the vacuum drop starts at about 2:50, and is shown in slow motion, this is not how fast they actually fell; also shown at 4:15)
Quote from: jeffreyH on 20/06/2015 14:39:34Gazza, PmbPhy told you what the distinction was between gravity and other types of forces. This is a very important point and you should take it on board. Unless you grasp the concept that gravity acts on every part of a body all at once you will be stuck in your incorrect way of viewing things. Forum members such as Alan, PmbPhy, Evan and Chiral, that are bothering to reply to you, know what they are talking about. By all means ask questions but make no assumptions that anything you believe is right simply because it has popped into your head.Really-are you a scientist?
Quote from: gazza711 on 20/06/2015 20:22:19Quote from: jeffreyH on 20/06/2015 14:39:34Gazza, PmbPhy told you what the distinction was between gravity and other types of forces. This is a very important point and you should take it on board. Unless you grasp the concept that gravity acts on every part of a body all at once you will be stuck in your incorrect way of viewing things. Forum members such as Alan, PmbPhy, Evan and Chiral, that are bothering to reply to you, know what they are talking about. By all means ask questions but make no assumptions that anything you believe is right simply because it has popped into your head.Really-are you a scientist?Yes. Among other things, I consider Jeff to be a scientist. Do you actually know what a scientist is? Please look it up.
and the others?Arent whales mammals?
Theres more posts on the internet disproving newton and saying GR is far fetched as well. Actually newton disproved many times.