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Zacharias Janssen and his father were experimenting using lenses and a tube. They object near the end of the tube appeared to be enlarged much greater than any simple magnifying glass could achieve by itself.
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William Harvey proves that the body contains only a single supply of blood; and that the heart is a muscle pumping it round a circuit.
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William Smellie was the first obstetrician to scientifically study the process of child birth. He published the Treatises on the Theory and Practice of Midwifery.
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Edward Jenner creates one of the first forms of vaccination. He realized people that were infected with cowpox were immune to smallpox.
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Sir Humphry Davy announces the anesthetic properties of nitrous oxide.
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Wilhelm Roentgen, a German professor of physics, was the first person to discover electromagnetic radiation in a wavelength range commonly known as X-rays today.
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Frederick Banting, J.B Collip, J.J.R MacLeod, and Charles H. Best discovered the hormone insulin in pancreatic extracts of dogs. They injected the hormone into a diabetic dog and found that it effectively lowered the dog's blood glucose levels to normal.
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Alexander Fleming discovers penicillin which began the era of antibiotics
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The world’s first artificial working hand was invented by David Gow in 2007. Those wearing the bionic hands have control over their movements and they can even grip objects.
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This allows doctors to see what’s going on in confined spaces in the body. It is capable of taking high quality color images and can detect early signs of illnesses such as esophageal cancer.
