Practical mathematics. How to effectively use accurate science in ordinary life. Perelman Ya.I.

It’s easy to understand mathematics, because it is everywhere! Do you want to know how to remove the gate from the loops with a lever? Why is it so important to ventilate the room, a lot of moisture accumulates in the air? And how to correctly calculate the germination of seeds? The numbers surround us and walk with us through life. Even your hand can serve as a measuring device! To find out how to use the useful mathematical life hacks, get acquainted with the book of Yakov Isidorovich Perelman, who will tell about the queen of sciences and where she can come in handy.