An amateur story of space

Discussions on the philosophical foundations, assumptions, and implications of science, including the natural sciences.

An amateur story of space

Postby socrat44 on September 6th, 2020, 6:19 am 

An amateur story of space
--------
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.
=======
Attachments
E = 1.jpg
socrat44
Member
 
Posts: 471
Joined: 12 Dec 2015


Re: An amateur story of space

Postby socrat44 on September 26th, 2020, 2:31 pm 

We know the physical laws on the Earth scene,
we don't know the physical laws on the Cosmic scene.
===
socrat44
Member
 
Posts: 471
Joined: 12 Dec 2015


Re: An amateur story of space

Postby socrat44 on September 27th, 2020, 2:02 am 

According to the WMAP (2013 measurement) the
 Cosmic Space is ''pretty flat'' to within 0,4% - 0,5%
The planet Earth (stars) is a local macro gravity - ''ball''
in the cosmic space
#
The universe (as a whole) is homogenous, isotopic, smooth. flat.
Gravity is a cosmic place where the local space is not flat . . .
Gravity masses are only about 5% in the whole universe . . .
Only about 5% of whole space is curved (Riemann geometry)
 and 95% of cosmic space is a flat, smooth, cold continuum.
Attachments
GRT - 2.jpg
socrat44
Member
 
Posts: 471
Joined: 12 Dec 2015



Return to Philosophy of Science

Who is online

Users browsing this forum: No registered users and 12 guests