A new technology, the heat-insulating and radiative cooling paint "Radicool," has been published in the world's top scientific journal, "Science." "Radicool" combines traditional heat insulation effects with radiative cooling effects (i.e., heat radiation), significantly reducing the heat entering indoor spaces. It is a product that can be utilized primarily in warehouses, factories, and office buildings with metal roofs for "heat stroke prevention," "improvement of working conditions," and "CO2 reduction." We hope you take a look and find it useful.