Physics. Schrödinger grew up, and the questions remained

Kazantseva Alla Borisovna-candidate of physical and mathematical sciences, associate professor of the Department of General and Experimental Physics of the MPSU, finalist of the RAS Competition 2019 and 2021 for the best work on popularizing science.
Physics-one of those sciences that allowed us to make the world around us like this, What it is: cars and trains, rockets and space stations, television, Internet, electron microscope, mobile communications and other benefits of technical civilization.
Physics allowed us to get answers to a wide variety of questions. What is "noise pollution", why do some sounds destroy our body, while others are treating? Who will get older: a person on earth or an astronaut flying to another planet? Where does the ubiquitous radiation come from and how does it affect us? What colors do you need to mix to get white? What “ingredients" are needed to create the universe: ordinary and dark matter, dark energy - what else?
Physics not only invents the most interesting riddles, but also gives them accurate, reasonable answers. Do not believe? Then try to calculate what is more: stars in the entire visible universe, grains of sand on all beaches of the Earth or molecules in a glass of water? You will find the answer to these and many other questions on the pages of this book