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    Pharaoh Khufu, Pyramid of Cheops, Giza   Pharaoh Khufu, Pyramid of Cheops, Giza
Khufu (in Greek known as Cheops) was a Pharaoh of Ancient Egypt's Old Kingdom. He reigned from around 2589 to 2566 B.C. Khufu was the second pharaoh of the Fourth Dynasty. He is generally accepted as being the builder of the Great Pyramid of Giza, on...
 
    Democritus, 1st Atomic Theory   Democritus, 1st Atomic Theory
Democritus ("chosen of the people") was an Ancient Greek philosopher born in Abdera, Thrace, Greece. He was an influential pre-Socratic philosopher who formulated an atomic theory for the cosmos. His exact contributions are difficult to disentangle f...
 
    Aristarchus, Sun at center of Universe   Aristarchus, Sun at center of Universe
Aristarchus of Samosis the first person we know of who suggested that the earth might go around the sun and not the other way around. He figured this out by looking at the shadow of the earth on the moon during an eclipse of the moon (now that Thales...
 
    Eratosthenes, Measuring the Earth   Eratosthenes, Measuring the Earth
Eratosthenes of Cyrene was a Greek scholar who lived and worked in Cyrene and Alexandria. Eratosthenes was director of the famous library in Alexandria, and is known for numerous important contributions to mathamatics, geography, and astronomy. In pa...
 
    Antikythera Mechanism, Astronomical Clock   Antikythera Mechanism, Astronomical Clock
The Antikythera mechanism is an ancient mechanical computer designed to calculate astronomical positions. It was recovered in 19001901 from the Antikythera wreck. Its significance and complexity were not understood until decades later. Its time of c...
 
 
10 - 70
  Heron of Alexandria, Inventor Steam Engine   Heron of Alexandria, Inventor Steam Engine
Heron of Alexandria was an ancient Greek mathematician who was a resident of a Roman province (Ptolemaic Egypt); he was also an engineer who was active in his hometown of Alexandria. He is considered the greatest experimenter of antiquity and his wor...
 
 
476 - 550
  Aryabhata, Inventor of the Digit Zero   Aryabhata, Inventor of the Digit Zero
Aryabhata is the first of the great astronomers of the classical age of India. He was born in 476 AD in Ashmaka but later lived in Kusumapura, which his commentator Bhaskara I (629 AD) identifies with Patilputra (modern Patna). Aryabhata gave the...
 
    Fibonacci, Hindu-Arabic Numeral System   Fibonacci, Hindu-Arabic Numeral System
Leonardo Pisano Bigollo or simply Fibonacci, was an Italian mathematician, considered by some "the most talented western mathematician of the Middle Ages." Fibonacci is best known to the modern world for the spreading of the Hindu-Arabic numeral syst...
 
    On the Revolutions of Heavenly Spheres   On the Revolutions of Heavenly Spheres
Nicolaus Copernicus: The Ptolemaic system of the universe, with the earth at the center, had held sway since antiquity as authoritative in philosophy, science, and church teaching. Following his precise observations of the heavenly bodies, Nicolaus C...
 
    Visboek, Adriaen Coenensz   Visboek, Adriaen Coenensz
In 1577 begint op de leeftijd van 63 jaar de Scheveninger Adriaen Coenensz aan zijn Visboek. In drie jaar tijd verzamelt hij daarin allerlei wetenswaardigheden over de zee, de kusten en kustwateren, de visgronden en de zeedieren. Hij schrijft er met...
 
    Invention of Napier's Bones   Invention of Napier's Bones
Napier's bones are an abacus invented by John Napier for calculation of products and quotients of numbers. Also called Rabdologia. Napier published his invention of the rods in a work printed in Edinburgh at the end of 1617 also entitled Rabdolog...
 
    Isaac Newton, Theory of Gravitation   Isaac Newton, Theory of Gravitation
Newton laid the foundation for differential and integral calculus. His work on optics and gravitation make him one of the greatest scientists the world has known. Newton's greatest achievement was his work in physics and celestial mechanics, which cu...
 
    Savery, Inventor Steam Engine - 1698   Savery, Inventor Steam Engine - 1698
Thomas Savery was an English inventor. Initially interested in naval applications of engineering (he designed an early paddle-wheel), Savery then became interested in pumping machines. On July 2, 1698 he patented an early steam engine, and in 1702 he...
 
    The Royal Society of London   The Royal Society of London
The origins of the Royal Society lie in a group of men who began meeting in the mid-1640s to discuss the new philosophy. Its official foundation date is 28 November 1660, when 12 of them met at Gresham College after a lecture by Christopher Wren, the...
 
    John Harrison, Solved Longitude - 1773   John Harrison, Solved Longitude - 1773
John Harrison was an English clockmaker, who designed and built the world's first successful chronometer (maritime clock), one whose accuracy was great enough to allow the determination of longitude over long distances. In 1714, the British Govern...
 
       
         



 
 
         
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