July Ideas

July is an ordinary person. I have never worked in an aerospace port, never stayed in a meteorological bureau, never received investment, no factory buildings, and no airships. All he had was time, curiosity, and a computer that could type. When he lost his job, he returned to his hometown to take care of his eighty-year-old parents. While accompanying his father in the hospital, while his son was doing homework, and on the weekly train between Hanzhong and Xi'an, he connected some seemingly unrelated physical facts together—— Buoyancy is free, Lighting is free, Hypothermia is free, Critical thresholds of natural systems are also free. He began to wonder: What would happen if these free things were used at the same time?