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Smoke machine by James Watt
This invent was one of the most famous in the Industrial revolution. This machine was a new advance with new sistems like piston sistem. Watt and Newcomen were the principal engineers whose creation was so important to improve the economies of Europe and particulary of Britain. -
Surgical anesthesia by Sir James Young Simpson
He discovered the chloroform. He was investigating about anesthesics when he discovered that the chloroform could wean someone if this one sniff it. So he decided to investigate its properties. -
Peniciline by Sir Alexander Fleming
Alexander Fleming was investigating about mortal bacterias when he had to leave the laboratory during one month. When he returned to his lab, he discovered that his bacterias were inffected by fungus that extermined the population of these bacterias. This creation was important for future medicines against other diseases.