Simulations with moving sources of light

. Standard Twins paradox simulation
. Twins paradox where the two clocks display the same elapsed time

. Acceleration with ten photons, a simulation made by my friend and mentor David Cooper
. Simulation of constant acceleration on two inline particles which displays their time and length contraction rate
. Simulation of opposite accelerations on two inline particles which shows that reversing the acceleration does not reverse the contraction
. An all in one simulation which shows horizontal and vertical photons, length and time contraction, constant and accelerated motion

. A brilliant paper on Relativity by David Cooper with three different simulations

The discussion on all those simulations is here, and if you want to participate, you're welcome.

Here is my Email address in case you want to contact me.