Quantum is a popular science physics and mathematics journal designed for the general reader. The materials accumulated in the magazine over the years of its existence are practically priceless. The role of the magazine was initially determined by its chief editors - prominent Russian scientists Isaac Konstantinovich Kikoin and Andrei Nikolaevich Kolmogorov, the initiator of the creation of the magazine, Peter Leonidovich Kapitsa. Under the flag of the world's first scientific magazine for schoolchildren, designed for the general reader, enthusiasts immediately gathered, on the one hand - strong scientists who were interested in a direct conversation with a student, on the other - brilliant teachers who wanted to share their findings not only with their class or circle.