Tag: iron
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.
In Praise of Copper, a Gift from Nature
If the conductivity of copper were ten times less, wires would have to be ten times the cross-sectional area to provide the same conductivity.
Combustion Is Anything but Ordinary
The combustion of wood or coal may seem so familiar as to be unworthy of any comment.
For Mankind, the Leap from Copper to Iron Was a Landmark Advance
The importance of metals, particularly iron, and the importance of the discovery of metallurgy can hardly be exaggerated.
Security Gates in the Cell
A key characteristic of life is active transport: control over what enters and exits the cell. Closer looks reveal exquisite “selectivity filters” with moving parts that make active transport work.