Tag: Earth’s crust
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.
Molybdenum Is Stored in Cells by a Powered Piercing Machine
The metal element 42, molybdenum, is needed in the body in extremely small but vital amounts for enzymes to work properly.
Remembering the First Manned Moon Landing at 50; What Does the Future Hold?
I remember watching the Apollo moon landings on TV from 1969 to 1972 as a child.