1. Question
What’s the definition of space
At beginning, where is the space and object come from
2. Thoughts
Space relate with time, every single time is just a slice of space-time sequence.
2.1. What is space - by Frank Wilczek
Newton: just pure space without anything
Faraday: the electric and magnetic fields
Maxwell: mathematical
Einstein: leave Maxwell’s equation just as they were
Energy feed into space
Elastic space-time
- In Newton’s law: only go straight
- In relativity: curve
Space weights and pushes
- the empty space has a density (dark energy)
- Was a modification in Einstein’s equation
Space is something, not nothing
Still not quite understanded