Over the course of ages, we have made countless discoveries that have improved the quality of our life and helped us to understand the world around us. It is very difficult (if not impossible) to rank the importance of the discoveries we have made, but one thing is for sure – some of them have literally changed our life. From penicillin and the screw pump to X-rays and electricity, here are 25 Biggest Scientific Discoveries in History of Mankind.
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If Alexander Fleming, Scottish scientist, had not discovered penicillin, the first antibiotics, in 1928, we would probably be still dying from things such as stomach ulcers, tooth abcesses, strep throat and scarlet fever, staph infections, lyme disease, leptospirosis etc.
There is certain controversy as to what the first mechanical clock was, but it is usually considered to be the clock created by Chinese monk and mathematician I-Hsing in 723 A.D. This groundbreaking discovery allowed us to quantify time.
In 1543, while on his deathbed, Polish astronomer Nicholas Copernicus published his theory that the Sun is at the center of the solar system with the planets revolving around it. Before that, astronomers believed the Earth was at the center of the universe.
One of the most important discoveries in medicine, the discovery of blood circulation is credited to the English physician William Harvey who, in 1628, was the first person to completely describe the systemic circulation and properties of blood being pumped to the brain and body by the heart.
One of the most significant Ancient Greek scientists, Archimedes is believed to have designed one of the first water pumps, a rotating corkscrew that pushed water up a tube. It transformed irrigation and remains in use today at many sewage-treatment plants.
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Photos: 23. WP, Planets2013, CC BY-SA 3.0, 22. Bryan Brandenburg, 21. David Hawgood via geographic.org.uk, 17. Ildar Sagdejev (Specious), 2008-07-11 Air conditioners at UNC-CH, CC BY-SA 4.0, 12. © Nevit Dilmen, Medical X-Ray imaging FKJ04 nevit, CC BY-SA 3.0, 10. Sandbh, 18 column periodic table, with Lu and Lr in group 3, CC BY-SA 4.0, 9. AIRS via flickr, CC BY 2.0, 8. Mj-bird, HITACHI, Magnetic Resonance Imaging System, ECHELON OVAL,, CC BY-SA 3.0, 2. William Hook via flickr, CC BY-SA 2.0, 1. GDC Global via flickr, CC BY 2.0