
HealthJuly 1, 1968
Sunburn
What happens to human skin, its various types of cells and their molecular constituents when it receives an overdose of ultraviolet radiation?

Sunburn
What happens to human skin, its various types of cells and their molecular constituents when it receives an overdose of ultraviolet radiation?

High Temperatures: Chemistry
Between 1,000 and 3,000 degrees centigrade lies the present frontier of chemical technology. A chemical plant making nitric oxide from air heated to 2,100 degrees is already in operation