All Questions
5
questions
-4
votes
1
answer
78
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The background of the universe [closed]
Mass(-energy-momentum) curves space(-time).
However - what is space-time?
Is it (the background) necessarily flat(without something in it) ?
If there were an empty universe - is there still spacetime ...
- 63
2
votes
1
answer
540
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If space is a vacuum, how can that happen without being encased inside something? [closed]
My question is, If space is a vacuum, how can that happen without being encased inside something? So could we be inside something we can't see or detect?
- 29
0
votes
1
answer
238
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Does space have a structure? [duplicate]
I’m sorry to ask such a vague question as I’m not able to put into words a certain question that I have in mind. I will do my best to describe this question. If I was to create a vacuum inside a box ...
- 155
-2
votes
1
answer
411
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What is Space 'made' of? [duplicate]
I have submitted my question, as I have been unable to request further information from the responders to it, as the system advised that there were 705 too many characters. Apologies for this, but ...
7
votes
4
answers
2k
views
What is space made of?
General Relativity posits that matter curves spacetime, such that geodesics point towards the object in question, hence, gravity. Now, how does matter do this? What is spacetime "made of", anyway, ...
- 193