The Einstein theory - Prof Lorentz did not make it...
The purpose of these articles is to explain Einstein's relativity theory in a simple way...Professor Lorentz did not make it... Einstein calculated that the ray of lights bend due to the proximity of a great mass such as the sun. Years after that calculation, during a solar eclipse, pictures were taken in Sobral, Brazil and showed that his theory was correct. This is pretty much the book content.