Tag: copper
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.
Fire and Metals — Primal Discoveries, by Design
The ability to tame fire led to the invention of the art of cooking, and much more.
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.