If only. The concepts behind GR are not too difficult to explain.Heracleum Persicum wrote:.
What I find so fascinating with Einstein, is, all kind of folks, from "MIT professor to dishwasher", all have some (more and less valid) opinion about all sorts of Einstein's theories .. in fact, in surface, Einstein's theories very simple to explain, understand AND visualize, for common (even illiterate) people.
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which arises from four basics principles postulated by EinsteinSpacetime tells matter how to move; matter tells spacetime how to curve.
John A. Wheeler
Relativity Principle: there is no preferred inertial frames,
i.e. all frames are good frames for physics.
Equivalence Principle: inertial effects are locally indistinguishable
from gravitational effects (which means the equivalence
between the inertial and the gravitational masses). In other words,
any gravitational field can be locally cancelled.
General Covariance Principle: field equations must be
covariant in form, i.e. they must be invariant in form under the
action of spacetime diffeomorphisms.
Causality Principle: each point of space-time has to admit
a universally valid notion of past, present and future.
However, the GR equations that the concepts give rise to are exceptionally complicated, challenging to properly understand, and especially difficult to solve being highly non-linear in nature.