When Albert Einstein first introduced his revolutionary theory of relativity, it sent shockwaves through the scientific community and sparked curiosity among the general public. Despite its reliance on complex mathematics, the theory has captivated minds worldwide. At the time of its publication, it was said that only a dozen individuals truly grasped its intricacies. Among them was Dutch physicist Hendrik Lorentz, who took it upon himself to distill these complex ideas for a wider audience. In this engaging narrative, he elucidates the fundamental concepts of relativity in straightforward language, requiring only a bit of patience and curiosity from readers. Dive into this enlightening exploration of one of sciences most groundbreaking theories! (Summary by Availle)