Breathing free
A metallic monstrosity, the 'iron lung' saved thousands of polio patients.
Gone with the War
Henry Moseley blazed a brilliant scientific trail; a sniper bullet ended his too-short life.
Scientist and sorcerer
Cornelis Drebbel's inventions were mired in mystery.
B(l)ack to the basics
Scottish chemist and physician Joseph Black did fundamental work on gases and heat.
Blood vs blood
The discovery of different blood groups made transfusions safe.
