Meaning of equivalence principle
Water in a bucket
All motion is relative
Gravitational time dialation
Light pulses
Clocks tick at same rate
Acceleration
Explanation
More explanation
Blue shifted
Discussion
Redshifted
Gravity bends light rays
Two reasons why
Discussion 2
How could you bend light?
Light bends towards lower speed regions
Gravitational time dialation
Gravitational lensing
Gravitational lensing figure
Gravitational lensing diagram
