Newton's law of cooling was determined experimentally by Newton in 1700. It is in good agreement with the actual force when forced convection, and only when the temperature difference is not too large in natural convection. Calculating Newton's law of cooling not only requires knowing the values of many related factors, but also the calculation formula is very complicated, so it is very difficult to calculate. Now use this Cooling Temperature Aide, you don't need to remember the formula yourself, as long as you know the time, the surrounding constant temperature, the initial temperature of the object and the core temperature can be calculated. Convenient.