The 15 basic equations and their corresponding laws of physics chosen for this book have revolutionized our modern understanding of the world. Thanks to the author’s amazingly easy language, readers will immerse themselves in the most beautiful of sciences, which can explain everything that happens in the Universe (or almost everything), and, perhaps, will want to stay in this science forever. The publication will be useful to everyone who wants to know a little more about the world around us and its properties. It will be especially interesting for high school students who have already decided to devote themselves to physics or engineering. So, forward to the knowledge of the basic laws of nature, following Newton, Einstein, Schrödinger, Dirac, Maxwell and other great scientists. And don't forget about the laws of light refraction when you look at a rainbow!