swap_horiz Special relativity Alternatives

1

General relativity

Einstein’s general relativity is a theory of gravitation explaining its effects through the warping of spacetime. Mass a...

Relativity Gravity Spacetime Einstein

9.7 Brilliant

2

Mass-energy equivalence

Einstein’s mass-energy equivalence demonstrates that mass and energy are equivalent forms of the same thing. The equatio...

Relativity Energy Einstein Mass

9.7 Brilliant

3

Lorentz invariance

Lorentz invariance is a fundamental principle in physics stating that physical laws are consistent across all inertial f...

Relativity Symmetry Spacetime Field Theory

9.3 Excellent

4

Equivalence principle

The equivalence principle, proposed by Einstein, describes a fundamental connection between gravity and acceleration. It...

Relativity Inertia Gravity Einstein

9.3 Excellent

5

Photoelectric effect

The photoelectric effect demonstrates that light behaves as discrete packets of energy called photons. When photons stri...

Light Quantum Einstein Electrons

9.3 Excellent

6

Time dilation

Time dilation is a phenomenon predicted by Einstein’s theory of relativity. It describes the difference in elapsed time...

Time Relativity Gravity Velocity

9.2 Excellent

7

Gravitational waves

Gravitational waves are disturbances in the fabric of spacetime generated by extremely energetic events like merging bla...

Astronomy Relativity Gravity Waves

9.2 Excellent

8

Lorentz transformation

The Lorentz transformation provides a method for converting spatial coordinates and time intervals between inertial fram...

Relativity Velocity Symmetry Spacetime

9.2 Excellent

9

Gravitational time dilation

Gravitational time dilation is a consequence of Albert Einstein’s theory of general relativity. It describes how time pa...

Time Relativity Gravity Spacetime

9.1 Excellent

10

Black hole event horizon

The event horizon of a black hole represents the point of no return. It’s defined as the boundary surrounding a black ho...

Relativity Gravity Black Hole Boundary

9.0 Excellent

11

Minkowski spacetime

Minkowski spacetime represents a fundamental concept in physics describing how space and time are interwoven. It’s notab...

Relativity Geometry Spacetime Four Dimensional

9.0 Excellent

12

Gravitational lensing

Gravitational lensing is a phenomenon in general relativity where the gravity of massive objects like galaxies and black...

Astronomy Relativity Light Gravity

8.9 Great

13

Relativity of simultaneity

The concept of relativity of simultaneity describes how time perception varies depending on an observer’s motion. It dem...

Time Relativity Spacetime Observers

8.8 Great

14

EPR paradox

The EPR paradox describes a thought experiment developed by Einstein, Podolsky, and Rosen in 1935. It examines quantum e...

Quantum Foundations Entanglement Einstein

8.8 Great

15

Galilean invariance

Galilean invariance describes a fundamental symmetry in classical physics. It posits that the equations governing motion...

Classical Relativity Motion Symmetry

8.7 Great

16

Length contraction

Length contraction is a consequence of Einstein’s theory of special relativity. It describes how measurements of an obje...

Relativity Space Motion Measurement

8.7 Great

17

Schwarzschild radius

The Schwarzschild radius represents the boundary around a black hole beyond which escape from gravity is impossible. It’...

Relativity Gravity Horizon Metric

8.6 Great

18

Geodesic motion

Geodesic motion represents a fundamental concept in physics concerning how objects move within spacetime. It dictates th...

Relativity Geometry Motion Gravity

8.6 Great

19

Cosmological constant

The cosmological constant is a fundamental concept in physics representing an intrinsic energy density throughout spacet...

Relativity Cosmology Dark Energy Einstein

8.4 Great

20

Frame dragging

Frame dragging describes the distortion of spacetime caused by rotating massive bodies. It’s notable because a spinning...

Relativity Rotation Gravity Spacetime

8.2 Great