LOG#011. Relativistic accelerations.

Imagine the S’-frame moves at constant velocity (see the frames above this line):     relative to the S-frame. In the S’-frame an object moves with acceleration     QUESTION: What is the acceleration in the S-frame? Of course it … Continue reading

LOG#010. Relativistic velocities.

In our daily experience, we live in a “non-relativistic” world with a very high degree of accuracy. Thus, if you see a train departing from you ( you are at rest relative to it) with speed (in the positive direction … Continue reading