What actually is fire? A physicist explains

Fire is an ancient technology that has helped shape human evolution. Our ancestors used fire for safety, cooking and preserving food. They gathered around a flickering fire to share stories, pass on cultural knowledge and build community.

Today, fire is an important industrial tool. It remains woven into our daily lives and rituals (think blowing out candles on your birthday cake). As it did…

© La Conversation - lundi 29 décembre 2025