Space-time is a mathematical model that joins space and time into a single idea called a continuum. This four-dimensional continuum is known as Minkowski space.
Combining these two ideas helped cosmologyto understand how the universe works on the big level (e.g. galaxies) and small level (e.g.atoms).
In non-relativistic classical mechanics, the use of Euclidean space instead of space-time is good, because time is treated as universal with a constant rate of passage which is independent of the state of motion of an observer.
But in a relativistic universe, time cannot be separated from the three dimensions of space. This is because the observed rate at which time passes depends on an object'svelocity relative to the observer. Also, the strength of any gravitational field slows the passage of time for an object as seen by an observer outside the field.
Wherever matter exists, it bends the geometryof spacetime. This results in a curved shape of space-time which can be understood asgravity. The white lines on the picture on the right represent the effect of mass on space-time.
In classical mechanics, the use of spacetime is optional, as time is independent of motion in the three dimensions of Euclidean space. When a body is moving at speeds close to the speed of light (relativistic speeds), time cannot be separated from the three dimensions of space. Time, from the point of view of a stationary observer, depends on how close to the speed of light the object is moving. |
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By (user no longer on site)
over a year ago
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"Space-time is a mathematical model that joins space and time into a single idea called a continuum. This four-dimensional continuum is known as Minkowski space. Tell me something I didn't already no.
Combining these two ideas helped cosmologyto understand how the universe works on the big level (e.g. galaxies) and small level (e.g.atoms).
In non-relativistic classical mechanics, the use of Euclidean space instead of space-time is good, because time is treated as universal with a constant rate of passage which is independent of the state of motion of an observer.
But in a relativistic universe, time cannot be separated from the three dimensions of space. This is because the observed rate at which time passes depends on an object'svelocity relative to the observer. Also, the strength of any gravitational field slows the passage of time for an object as seen by an observer outside the field.
Wherever matter exists, it bends the geometryof spacetime. This results in a curved shape of space-time which can be understood asgravity. The white lines on the picture on the right represent the effect of mass on space-time.
In classical mechanics, the use of spacetime is optional, as time is independent of motion in the three dimensions of Euclidean space. When a body is moving at speeds close to the speed of light (relativistic speeds), time cannot be separated from the three dimensions of space. Time, from the point of view of a stationary observer, depends on how close to the speed of light the object is moving."
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By (user no longer on site)
over a year ago
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"Space-time is a mathematical model that joins space and time into a single idea called a continuum. This four-dimensional continuum is known as Minkowski space.
Combining these two ideas helped cosmologyto understand how the universe works on the big level (e.g. galaxies) and small level (e.g.atoms).
In non-relativistic classical mechanics, the use of Euclidean space instead of space-time is good, because time is treated as universal with a constant rate of passage which is independent of the state of motion of an observer.
But in a relativistic universe, time cannot be separated from the three dimensions of space. This is because the observed rate at which time passes depends on an object'svelocity relative to the observer. Also, the strength of any gravitational field slows the passage of time for an object as seen by an observer outside the field.
Wherever matter exists, it bends the geometryof spacetime. This results in a curved shape of space-time which can be understood asgravity. The white lines on the picture on the right represent the effect of mass on space-time.
In classical mechanics, the use of spacetime is optional, as time is independent of motion in the three dimensions of Euclidean space. When a body is moving at speeds close to the speed of light (relativistic speeds), time cannot be separated from the three dimensions of space. Time, from the point of view of a stationary observer, depends on how close to the speed of light the object is moving."
It's a con i tell you.
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There's no picture on the right. |
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