Copper Reveals Its Role in Exploding Plants — and in the Miracle of Man
The exploding pods of the popping cress send the plant’s seeds flying in all directions, as far as a meter from the parent.
Whatever the Cause, We Are No Accident
The unique fitness of nature for carbon-based life and intelligent beings of our biology is an empirical discovery.
How Man Became the Fire-Maker
Being terrestrial is one obvious requirement. No fully aquatic species could master fire and thus develop metallurgy.
The Role of Lignin for Fire, Explained
Without lignin, there would be no woody plants, no wood, no coal, no charcoal, no fire, no pottery, and certainly no iron or metallurgy.