In all the continents of the earth, man has sort ways to warm himself, especially in the Northern Hemisphere, Europe, Russia, the Far East and the Middle East. These are more or less the regions of the world that experience winters for a given number of months during the year. In the early centuries, man [...]
For centuries now, man has used fire to warm himself, keep wild animals away, and prepare his food. He still does that today although the methods he uses to accomplish this have changed. With civilization having sprung up, man now has homes but still uses fire and electricity to keep himself warm. Fast forward to [...]