10/11/2021
🧬World Science Day🧬
Here are some of the pioneering scientists from around the world, who through their studies help advance humanity with their work.
In order from top to bottom & left to right.
Shen Kuo - China 🇨🇳
Shen Kuo was an eminent scientist of the Northern Song Dynasty (960-1127). He was an all-around scholar of astronomy, literature, physics, chemistry, calendars, geology, meteorology and medical science. He was also an outstanding engineer, an excellent military strategist and a tactful diplomat. He even made milestone contributions to art and literature. So Shen Kuo was well known for being knowledgeable in ancient China.
Meghnad Saha - India 🇮🇳
Born on October 6, 1893 in Dhaka, Bangladesh, Meghnad Saha’s best-known work concerned the thermal ionisation of elements, and it led him to formulate what is known as the Saha Equation. This equation is one of the basic tools for interpretation of the spectra of stars in astrophysics. By studying the spectra of various stars, one can find their temperature and from that, using Saha’s equation, determine the ionisation state of the various elements making up the star.
Marie Maynard Daly - America 🇺🇸
Born on April 16, 1921 Marie was an American biochemist. She was the first African-American woman in the United States to earn a Ph.D. in chemistry (awarded by Columbia University in 1947).[3] Daly made important contributions in four areas of research: the chemistry of histones, protein synthesis, the relationships between cholesterol and hypertension, and creatine's uptake by muscle cells.[4]
Alan Turing - England 🇬🇧
Regarded as the father of computer science and artificial intelligence, Alan Turing was a distinguished mathematician and logician. During WWII, he successfully broke the challenging German Enigma machine codes thereby reducing the duration of war by a couple of years. The scientist, who was convicted for being gay, has been an inspiration for numerous films, plays and novels.
Carlos Juan Finlay - Cuba 🇨🇺
Before Google doodles, we honored important forgotten figures with postage stamps. Carlos Juan Finlay, the Cuban physician who first linked yellow fever to mosquitoes in 1881, has received both tributes. Given the thousands of lives he saved and the decades of scorn he endured, we'd say he deserved them.
Born in Puerto Príncipe, Cuba, Finlay studied abroad before returning to Havana as a general practitioner and ophthalmologist with a penchant for scientific research. At the time, yellow fever still ravaged the tropics, terrorizing populations.
Dmitri Mendeleev - Russia 🇷🇺
Dmitri Mendeleev (8 February 1834 – 2 February 1907) was a chemist who created the periodic table of elements that we use today.
Mendeleev was interested in science from a young age and his mother moved him from their home in Siberia to St Petersburg to make sure that he received a good higher education. After graduating, Mendeleev taught chemistry at school and at university, and published a very popular textbook on the subject.
It was while working on this textbook that he saw patterns when he tried to organise chemical elements logically according to their properties, which led him to create his periodic table by putting elements together according to their atomic weight.
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