The Role of Lignin for Fire, Explained

Carboniferous Period, charcoal, conduction, convection, evaporative cooling, fire, Fire-Maker series, fire-making, fitness, Goldilocks, humus, industrial age, Intelligent Design, iron, Life Sciences, lignin, metallurgy, metals, nature, organic compounds, oxygen, photosynthesis, physiology, plant cells, pottery, radiation, steam engine, trees, wood, woody plants
Without lignin, there would be no woody plants, no wood, no coal, no charcoal, no fire, no pottery, and certainly no iron or metallurgy. Source
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In Praise of Copper, a Gift from Nature

Alfred Russell Wallace, aluminum, ambient temperatures, conductors, copper, corrosion, crustal rocks, ductility, Earth’s crust, electrical devices, fire, Fire-Maker series, fitness, fortuity, gold, Intelligent Design, iron, lead, machinery, mantle, metallurgy, metals, rocks, silver, steam engine, Stone Age
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. Source
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