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Why Did The Apple Fall? Gravity Or Curved Space-time? by Pompom88: 3:07pm On May 14, 2020 |
Newton defined gravity as he force that causes two bodies to be attracted to one another. I was exposed to this definition back in school and it made sense in explanning why objects fall. Newton believed Space to be flat and rigid making objects in motion travel in a straight path unless if disturbed by an external force. Einstein, on the other hand, described accurately through his General Theory Of Relativity, that Gravity Is as a result of curvature of space-time caused by the uneven distribution of mass. The belief that space and time are independent and flexible was bizarre, unheeded at the time but made it brilliant and remarkable after it was proven. But How does the curvature of space-time answer the question of the fallen apple? |
Re: Why Did The Apple Fall? Gravity Or Curved Space-time? by jpawjpaw(m): 12:39am On May 15, 2020 |
Both of them were equally correct, the force Newton was talking about and Einstein's curvature of space time are the same but it's been explained in different way. The space time is just like a fabric, the Earth has curved the space and that what makes it possible for everything within the curve to accelerate downward. Do this experiment by throwing something upwards with a greater force, you will notice that the object is coming down in a projectile manner(curvy way) �, not straight down but in a curvy way. If you can go beyond the curvature of the space time the Earth has curved, then you will experience zero gravity. So Albert Einstein was right. Newton too was right because the curve (Force F) makes objects to accelerate downward, but he didn't see it the way Einstein saw it. Where are the Physicsist and the Mathematicians �� 1 Like |
Re: Why Did The Apple Fall? Gravity Or Curved Space-time? by Pompom88: 1:47pm On May 15, 2020 |
jpawjpaw: Thanks Jpaw² That's helpful. it really is. I need further enlightenment. i understand why if I go beyond the Earth's warped space-time, I should experience zero or less gravitational pull. But, if I go beyond the Earth's influence on space-time, should I not be caught in the Sun's space-time curvature? Are not all planets in our solar system caught in the Sun's space-time curvature? How can there be zero gravity within our solar system? |
Re: Why Did The Apple Fall? Gravity Or Curved Space-time? by jpawjpaw(m): 11:55am On May 29, 2020 |
welcome Sir. if you go beyond the Earth's space-time curvature you will just remain in equilibrium why because of F = Gmm/r², there are some other bodies (planets) and you are attracted to them too including the sun. So attraction from from different bodies will keep you in equilibrium. The sun's gravity will not have that too much impact on you(will be negligible) due to the distance. In the universe size maters and so does the distance Though I'm not a Physicist oh. |
Re: Why Did The Apple Fall? Gravity Or Curved Space-time? by jpawjpaw(m): 11:58am On May 29, 2020 |
[quote author=Pompom88 post=89576088] welcome Sir. if you go beyond the Earth's space-time curvature you will just remain in equilibrium why because of F = Gmm/r², there are some other bodies (planets) and you are attracted to them too including the sun. So attraction from from different bodies will keep you in equilibrium. The sun's gravity will not have that too much impact on you(will be negligible) due to the distance. In the universe size maters and so does the distance Though I'm not a Physicist oh. 1 Like |
Re: Why Did The Apple Fall? Gravity Or Curved Space-time? by Pompom88: 5:32pm On May 29, 2020 |
[quote author=jpawjpaw post=90083243][/quote] That explains it. Thanks once again � |
Re: Why Did The Apple Fall? Gravity Or Curved Space-time? by Pompom88: 5:33pm On May 29, 2020 |
jpawjpaw: oh! That explains it. Thanks once again. 1 Like |
Re: Why Did The Apple Fall? Gravity Or Curved Space-time? by jpawjpaw(m): 8:55pm On May 29, 2020 |
Pompom88:welcome Sir |
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