Join in expert discussion on special and general relativity discussion. Relativity is the dependence of various physical phenomena on relative motion of the observer and the observed objects.
- · Replies 3 ·
- · Replies 51 ·
- · Replies 4 ·
- · Replies 5 ·
- · Replies 10 ·
Undergrad
Gravity Explained: Why Objects Fall
- · Replies 16 ·
- · Replies 5 ·
Graduate
Penrose Diagram for Schwarzschild
- · Replies 3 ·
- · Replies 10 ·
- · Replies 84 ·
- · Replies 10 ·
- · Replies 176 ·
- · Replies 3 ·
Undergrad
Can gravity bend the path of light?
- · Replies 16 ·
Graduate
Relativistic momentum definition
- · Replies 14 ·
- · Replies 6 ·
- · Replies 22 ·
High School
Photon and electron racing show
- · Replies 3 ·
- · Replies 6 ·
- · Replies 4 ·
- · Replies 2 ·
- · Replies 5 ·
- · Replies 3 ·
- · Replies 5 ·
- · Replies 1 ·
Graduate
What is the D'Alembert operator
- · Replies 4 ·
- · Replies 16 ·
- · Replies 7 ·
- · Replies 5 ·
- · Replies 2 ·
- · Replies 2 ·
- · Replies 12 ·
- · Replies 6 ·
- · Replies 12 ·
- · Replies 6 ·
Graduate
Curvature without tidal forces
- · Replies 4 ·
- · Replies 3 ·
- · Replies 16 ·
- · Replies 11 ·
- · Replies 3 ·
- · Replies 1 ·
- · Replies 44 ·
- · Replies 6 ·
- · Replies 2 ·
- · Replies 17 ·
- · Replies 4 ·
- · Replies 22 ·
- · Replies 4 ·
- · Replies 2 ·
- · Replies 7 ·
- · Replies 7 ·
Undergrad
Potential energy contributes to the mass
- · Replies 5 ·
- · Replies 17 ·
High School
What is the exact definition of mass?
- · Replies 9 ·
- · Replies 7 ·
- · Replies 12 ·
- · Replies 31 ·
- · Replies 9 ·
- · Replies 2 ·
- · Replies 3 ·
- · Replies 4 ·
- · Replies 49 ·
- · Replies 13 ·
High School
Why is light's speed the fastest speed?
- · Replies 10 ·
- · Replies 24 ·
- · Replies 11 ·
- · Replies 7 ·
- · Replies 8 ·
- · Replies 7 ·
Graduate
Anisotropy of the speed of light?
- · Replies 12 ·
- · Replies 7 ·
- · Replies 15 ·
- · Replies 8 ·
- · Replies 1 ·
- · Replies 10 ·
Graduate
Final Theory and Orbital Mechanics
- · Replies 13 ·
Undergrad
Do Photons Have Mass and Kinetic Energy?
- · Replies 10 ·
- · Replies 31 ·
- · Replies 35 ·
Graduate
Consistency of the speed of light
- · Replies 431 ·
Graduate
How Quickly Does Gravity Propagate?
- · Replies 3 ·
- · Replies 4 ·
- · Replies 20 ·
- · Replies 8 ·
- · Replies 2 ·
- · Replies 17 ·
- · Replies 2 ·
- · Replies 7 ·
- · Replies 85 ·
- · Replies 29 ·
- · Replies 5 ·
- · Replies 17 ·
- · Replies 87 ·
- · Replies 4 ·
- · Replies 2 ·
Graduate
Geodesics in schwarzschild solution
- · Replies 2 ·
- · Replies 1 ·
Graduate
Perspective of Massless objects
- · Replies 9 ·
- · Replies 1 ·
Undergrad
What about this Final Theory thing?
- · Replies 1 ·