### An amateur story of space

Posted:

**September 6th, 2020, 6:19 am**An amateur story of space

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Euclid created mathematical 2-D space

Euclidean space is a scene where the Earth events take place

Euclidean math space is an absolute and rigid, nothing can change it

#

In 1908 Minkowski mathematically showed that Einstein's

SR theory would be more beautiful if to use 4-D.

Most important, the 4-D is as flat as 2-D, only one (2-D) is used

as Earth scene and another (4-D) is used as a Cosmic scene.

And from Cosmic view the Earth's scene is looked as the 3-D.

#

During 1830 - 1854 Lobachevsky, János Bolyai and Riemann separately

and independently had an idea, maybe, some ''hidden force'' can change

the Euclidean 2-D. And they created non-Euclidean geometry.

Many years this mathematical idea was considered as an abstract idea

#

But in 1915 Einstein by using Riemann geometry

(plus using ''hidden matter'' -- mass and energy)

showed that the Riemann geometry can have practical profit.

#

The Earth ''empty'' space (air) is filled with different molecules

The Cosmic ''empty'' space (vacuum) is filled with different ''virtual particles''

Both spaces are real.

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--------

Euclid created mathematical 2-D space

Euclidean space is a scene where the Earth events take place

Euclidean math space is an absolute and rigid, nothing can change it

#

In 1908 Minkowski mathematically showed that Einstein's

SR theory would be more beautiful if to use 4-D.

Most important, the 4-D is as flat as 2-D, only one (2-D) is used

as Earth scene and another (4-D) is used as a Cosmic scene.

And from Cosmic view the Earth's scene is looked as the 3-D.

#

During 1830 - 1854 Lobachevsky, János Bolyai and Riemann separately

and independently had an idea, maybe, some ''hidden force'' can change

the Euclidean 2-D. And they created non-Euclidean geometry.

Many years this mathematical idea was considered as an abstract idea

#

But in 1915 Einstein by using Riemann geometry

(plus using ''hidden matter'' -- mass and energy)

showed that the Riemann geometry can have practical profit.

#

The Earth ''empty'' space (air) is filled with different molecules

The Cosmic ''empty'' space (vacuum) is filled with different ''virtual particles''

Both spaces are real.

=======