Very nice visual illustration of relativity precented by renowned physicist and author Brian Greene. Don't miss from 14:25 onwards:
Colorful but I bet nobody knows what's really going on. It starts about keeping speed of light the same in both car and ground frame. But at 1:47 and 2:00 the video does not show very well how lightspeed is constant in the ground frame. At 2:15 it's really a big mess. But from 1:45 onwards the video does show that simultaneous arrivals in the car frame (green) are not simultaneous in the ground frame (dark blue):
Simple but effective. At 0:45 the videos hows that distances of light from the observer do not remain the same, which means the speed of light does not stay constant. But at 1:06 they do:
Very nice visualization of 4D spacetime, from 4:20 onwards.
Some live footage video clips of Albert Einstein.
At the Solvay Conference in Brussels.
(First 15 seconds the image is black)
Einstein at 2:26
=> Go to ....
- Relativity for Dummies
- 4D Spacetime Block Universe
- Reciprocal time dilation
- Reciprocal length contraction
- Lengths do not 'appear' contracted!
- Measuring the contracted train
- Constant light speed
- Where is the bullet?
- Train experiment
- Slower and shorter - case study
- Minkowski vs Loedel
- Spacetime video
- Further reading