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Steam engine | James Watt (1736-1819)
Is it light in your room? Are you using a 100-Watt bulb, or a 75-Watt bulb? One thing´s for sure - the name on your bulb is probably Watt. Why?. James Watt was a mechanical engineer, born in Greenock, Scotland. In 1764, Watt received a steam engine to repair. He repaired it but he saw it lost a lot of energy. So, watt started to design a better, more efficient engine. His new machine didn´t lose steam and it used 75% less fuel than other engines. -
Telephone | Alexandre Graham Bell (1847-1922)
Alexandre Graham Bell was born in Edimburg, but moved with his family to North America in 1870. He was interested in the science of hearing because both his mother and wife were deaf. Bell taught at different schools for deaf people. Then, he experimented with new inventions to help the deaf and through this work, he invented the telephone in 1876. -
Penicillin | Sir Alexander Fleming (1881-1955)
Born in Ayrshire, Sir Alexander Fleming moved to London and studied medicine at London University. Later, he joined the research department at St Mary´s Medical School. During World War I, Fleming saw many soldiers die because their wounds became infected with bacteria. In August 1928, he left his laboratory and went on holiday. But he forgot to sterilizse his equipment. This happy accident was the start of modern antibiotics and saved millions of lives.