The very basis of knowing how our universe looks like
If suppose we remove each and everything in our universe. From the very macroscopic level to the microscopic level. What would you call it? A void? Many of them would call it 'Emptiness'. Yes that's right but it is also wrong. If you look deep inside the so called 'Nothing' in our universe. It would be just the Space. Space as existing in three dimensional.
But our universe isn't just 3-Dimensional. Time is a dimension in which events occur. And this event's occur only when there is space. So if I ask you, with what respect to are you moving? No matter what frame of reference. Even if your sitting in one place right now. The answer is we all are moving through space-time. A 4-dimensional universe, where space existing in 3-D and time playing the role as fourth dimension. In cosmology, the concept of space-time combines both space and time to a single abstract universe. Mathematically saying, its known as a manifold consisting of events which are described through co-ordinate system. Picture infinite no. of lines and no. of other lines which are passing through it perpendicularly. We come up with a picture which has numerous no. of square shaped boxes. And this is what we call as The Space-time Fabric. This extraordinary fabric has the ability to fold, curve, vibrate etc. Everything in our universe lies on this space-time Fabric. This might be a complicated topic, but knowing the basis of how it works isn't a waste of time. It at least gives you an idea of how our universe looks like.
Gravity is a shape
We all know that, Newton is credited for his works on gravitation and the story of the apple falling on his head. Newton's law of gravitation states everybody in our universe is attracted by each other with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Even though Newton discovered gravity, he failed to understand it deeply. He didn't know what exactly was this mysterious force which made the apple fall. He couldn't understand how his own theory works. But Einstein, a very well known theoretical physicist was the one who understood what gravity was completely. His works on general theory of relativity gives us the best understanding of how the gravity works.
If suppose gravity isn't a force then,
If suppose we remove each and everything in our universe. From the very macroscopic level to the microscopic level. What would you call it? A void? Many of them would call it 'Emptiness'. Yes that's right but it is also wrong. If you look deep inside the so called 'Nothing' in our universe. It would be just the Space. Space as existing in three dimensional.
But our universe isn't just 3-Dimensional. Time is a dimension in which events occur. And this event's occur only when there is space. So if I ask you, with what respect to are you moving? No matter what frame of reference. Even if your sitting in one place right now. The answer is we all are moving through space-time. A 4-dimensional universe, where space existing in 3-D and time playing the role as fourth dimension. In cosmology, the concept of space-time combines both space and time to a single abstract universe. Mathematically saying, its known as a manifold consisting of events which are described through co-ordinate system. Picture infinite no. of lines and no. of other lines which are passing through it perpendicularly. We come up with a picture which has numerous no. of square shaped boxes. And this is what we call as The Space-time Fabric. This extraordinary fabric has the ability to fold, curve, vibrate etc. Everything in our universe lies on this space-time Fabric. This might be a complicated topic, but knowing the basis of how it works isn't a waste of time. It at least gives you an idea of how our universe looks like.
Gravity is a shape
We all know that, Newton is credited for his works on gravitation and the story of the apple falling on his head. Newton's law of gravitation states everybody in our universe is attracted by each other with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Even though Newton discovered gravity, he failed to understand it deeply. He didn't know what exactly was this mysterious force which made the apple fall. He couldn't understand how his own theory works. But Einstein, a very well known theoretical physicist was the one who understood what gravity was completely. His works on general theory of relativity gives us the best understanding of how the gravity works.
If suppose gravity isn't a force then,
Have you ever pondered how our earth revolves around the sun actually?
Einstein view of gravity explains it all. A curvature of the space-time fabric occurs due to the presence of the sun. The sun's mass acting on the fabric, tends the fabric to curve and create a gradation. Now, imagine as if you are rolling the earth towards the sun. Due, to the presence of the curve, the earth keeps revolving around the sun. And the curvature which took place is very well understood as the gravity itself acting as a shape. Therefore, gravity is caused only because of the space-time warp.
A picture depicting the working of the gravity. The space-time warp (Bending of the space-time fabric) caused due to the presence of the mass of the earth, which tends the satellite to move along its orbit.This is considered to be one of the best workings of Einstein. But he has done far more extraordinary than this. We still have numerous things to find out about our universe...We just know only about 1% of it. I hope you all were able to understand it. If not, I'll soon upload a animated video clip in the video tab, which explains it well enough.
Einstein view of gravity explains it all. A curvature of the space-time fabric occurs due to the presence of the sun. The sun's mass acting on the fabric, tends the fabric to curve and create a gradation. Now, imagine as if you are rolling the earth towards the sun. Due, to the presence of the curve, the earth keeps revolving around the sun. And the curvature which took place is very well understood as the gravity itself acting as a shape. Therefore, gravity is caused only because of the space-time warp.
A picture depicting the working of the gravity. The space-time warp (Bending of the space-time fabric) caused due to the presence of the mass of the earth, which tends the satellite to move along its orbit.This is considered to be one of the best workings of Einstein. But he has done far more extraordinary than this. We still have numerous things to find out about our universe...We just know only about 1% of it. I hope you all were able to understand it. If not, I'll soon upload a animated video clip in the video tab, which explains it well enough.
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