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Spacetime
New post in Spacetime
Is the future predetermined and fixed?
January 7th, 2023
gravity
determinism
causality
spacetime
Off-diagonal terms in metric for 4D space-time
October 1st, 2022
tensor-calculus
covariance
special-relativity
spacetime
metric-tensor
Is subspace a "real" theory?
August 7th, 2022
spacetime
What is space made of itself?
October 12th, 2020
spacetime
What is the limit of the universe?
May 17th, 2020
universe
space-expansion
spacetime
cosmology
Does time exist without Gravity?
February 21st, 2020
general-relativity
spacetime
time
observers
event-horizon
How do we know we live in 3 dimensions?
September 22nd, 2020
spacetime-dimensions
spacetime
Proof that Energy Momentum Tensor of Scalar Field Theory satisfies Weak Energy Condition
March 10th, 2020
general-relativity
spacetime
field-theory
energy
If something is not moving in space, is it moving on the time axis at the speed of light?
July 18th, 2020
special-relativity
speed-of-light
spacetime
Does isotropy imply homogeneity?
August 1st, 2022
metric-tensor
general-relativity
cosmology
spacetime
symmetry
What if the size of the Universe doubled?
February 28th, 2020
cosmology
physical-constants
spacetime
universe
Is my interpretation of how a gravitational wave is formed correct?
October 21st, 2020
general-relativity
mass
spacetime
gravitational-waves
Does time dilation cause gravity as explained in this video?
August 13th, 2022
general-relativity
curvature
spacetime
gravity
Does an object creates gravitational waves when only accelerating in one direction?
December 17th, 2020
gravity
general-relativity
spacetime
acceleration
gravitational-waves
Commutation relations in QFT and the principle of locality
July 7th, 2020
commutator
quantum-field-theory
special-relativity
spacetime
locality
Why should one expect closed timelike curves to be impossible in quantum gravity?
May 20th, 2020
general-relativity
spacetime
quantum-gravity
causality
time-travel
How can I vizualize and understand curved spaces in general relativity?
February 27th, 2020
general-relativity
spacetime
curvature
visualization
Why does the universe exhibit three large-scale spatial dimensions?
December 1st, 2020
string-theory
quantum-gravity
spacetime
spacetime-dimensions
Is there a geometric interpretation of the spacetime interval?
October 14th, 2020
special-relativity
spacetime
geometry
Killing tensor in the Kerr metric
August 1st, 2022
general-relativity
spacetime
symmetry
vector-fields
kerr-metric
What manifold is spacetime?
August 1st, 2022
spacetime
differential-geometry
metric-tensor
topology
general-relativity
Is spacetime absolute?
August 1st, 2022
spacetime
special-relativity
inertial-frames
Does speed of light being constant make time a derived unit?
August 1st, 2022
speed-of-light
si-units
metrology
special-relativity
spacetime
Is time sped up when orbiting a black hole? Why? What does that mean?
August 1st, 2022
observers
general-relativity
black-holes
spacetime
reference-frames
Can anyone explain me how time can bend according to Einstein in simple way?
July 3rd, 2020
spacetime
gravity
general-relativity
curvature
How to prove that we are living in a 3+1D world?
August 4th, 2020
popular-science
spacetime-dimensions
spacetime
experimental-physics
Orientability of spacetime
September 2nd, 2020
spacetime
mathematical-physics
Spacetime diagram of a collapse of a rotating star
September 13th, 2020
general-relativity
black-holes
spacetime
Why no gravity lens around planets?
July 22nd, 2020
general-relativity
spacetime
planets
gravitational-lensing
Does Special Relativity Imply Multiple Realities?
December 30th, 2020
spacetime
relativity
relative-motion
special-relativity
general-relativity
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