Fire and heat

When the weather is cold, we often make a campfire to warm ourselves. However, if we are constantly close to the campfire, we will definitely feel hot. Without having to think long, we definitely know that fire is hot. But we already know the scientific answer, why fire can feel hot, heat or heat is a form of energy and some objects can be conductors of heat so that they become sources of heat. Apart from the sun which is the largest source of heat, you should know that there are several ways of heat transfer. For example when cooking water with a pan with a handle over the fire. Conduction which is the transfer of heat through an object as an intermediary that is not followed by changes in the object.

For example, the handle of a pan Convection which is the transfer of heat through an object followed by the transfer of heat flow in the substance of the object. For example, boiled water Radiation is the direct transfer of heat without using an intermediary. For example, feeling the heat from a campfire. The discovery of how to make fire is one of the most useful things for humans, because with fire, the hominids (humans and their relatives such as apes) can be safe from wild animals, cook food, and get a source of light and keep themselves warm. Even today, many people are still isolated and consider fire to be the source of life for all living things.