Push of gravity

[Leovinus]

I was just thinking about another way of thinking about gravity. Suppose, instead of being pulled toward a massive object like the Earth or the Sun, gravity was really space itself PUSHING you toward massive objects. The closer you get to the object, the stronger the push. Sort of like the deeper you go in the ocean, the higher the pressure due do the water above you pushing on you.<br /><br />I don't suppose it makes any difference one way or the other... <div class="Discussion_UserSignature"> </div>

 

[vogon13]

Consider 2 scenarios:<br /><br />A. I am standing on a sphere of styrofoam, 1 mile across.<br /><br />B. I am standing on a sphere of neutronium, 1 mile across.<br /><br />Question:<br /><br />How does the 'space' above me 'know' how hard to 'push' ?<br /><br />BTW, neat idea, compellingly weird.<br /><br /><br /> <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>

 

[Leovinus]

How does anything know anything? <div class="Discussion_UserSignature"> </div>

 

[vogon13]

Sometimes you are so deep. <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>

 

[majornature]

Gravity that pushes....hmm. sounds theoretical but it wouldn't make sense in a way that gravity pulls in all directions. Gravity is a weak force, to have gravity push on something the force must increase. <div class="Discussion_UserSignature"> <font size="2" color="#14ea50"><strong><font size="1">We are born.  We live.  We experiment.  We rot.  We die.  and the whole process starts all over again!  Imagine That!</font><br /><br /><br /><img id="6e5c6b4c-0657-47dd-9476-1fbb47938264" style="width:176px;height:247px" src="http://sitelife.space.com/ver1.0/Content/images/store/14/4/6e5c6b4c-0657-47dd-9476-1fbb47938264.Large.jpg" alt="blog post photo" width="276" height="440" /><br /></strong></font> </div>

 

[Leovinus]

If gravity is such a weak force, why is it so hard to get into orbit? <img src="/images/icons/wink.gif" /> <div class="Discussion_UserSignature"> </div>

 

[Leovinus]

Think of it this way:<br /><br />Why does the fish at the bottom of the ocean not get crushed by the immense pressure? Because the fish has equal pressure inside and out and so this is normal for it.<br /><br />Now consider space just like that. Space exerts enormous pressure, but in all directions so we don't feel it. Matter is a hole in space, sort of like a low-pressure area. The more massive the matter is, the bigger the hole and the greater the push by space to fill it. <div class="Discussion_UserSignature"> </div>

 

[Leovinus]

Has every idea been thought of before? How depressing. <div class="Discussion_UserSignature"> </div>

 

[vogon13]

OK, for now, assume this force is pressing down on me, is there a reaction force in the opposite direction? Does the force need something further up to 'build pressure' against? <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>

 

[Leovinus]

Space -> Earth <-> You <- Space<br /><br />Space is doing the squeeze play from all directions. You and the Earth, in turn, push against each other. <div class="Discussion_UserSignature"> </div>

 

[vogon13]

? <-space->Earth<->me<-space-> ?<br /><br />What's space pushing on (the question marks) ?<br /><br />This system won't 'build up any pressure' on me, force takes path of least resistance and only pushes on question marks.<br /><br />Addictively compellingly weird.<br /><br /> <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>

 

[Leovinus]

You're thinking in terms of everyday experience. You have to go beyond Newton's laws and not be limited by them. Space doesn't need an immovable object like a wall at the edge of the universe to push against. Space itself just pushes. Maybe it's the pressure of the expanding universe or something? Who knows? <div class="Discussion_UserSignature"> </div>