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The Antikythera mechanism is an ancient mechanical computer designed to calculate astronomical positions. It was recovered in 1900–1901 from the Antikythera wreck. Its significance and complexity were not understood until decades later. Its time of construction is now estimated between 150 and 100 BC. Technological artifacts of similar complexity and workmanship did not reappear until the 14th century, when mechanical astronomical clocks were built in Europe....
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Archimedes of Syracuse, Eureka!
Archimedes of Syracuse was an Ancient Greek mathematician, physicist, engineer, inventor, and astronomer. Although few details of his life are known, he is regarded as one of the leading scientists in classical antiquity. Generally considered the gre... |
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Hipparchus, Astronomer
Hipparchus was the most important Greek astronomers of his time. He very accurately cataloged over 1,000 stars and invented the mathematical science of trigonometry. Ptolemy was a great admirer of Hipparchus's research and recorded some of it in his... |
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Cicero, Roman Philosopher
Marcus Tullius Cicero was a Roman philosopher, politician, lawyer, orator, political theorist, consul and constitutionalist. He came from a wealthy municipal family of the Roman equestrian order, and is widely considered one of Rome's greatest orator... |
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The Julian Calendar
The Julian calendar was introduced by Julius Caesar in 45 BC. It was in common use until the 1500s, when countries started changing to the Gregorian Calendar. However, some countries (for example, Greece and Russia) used it into this century, and the... |
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Pliny the Elder, Writer 1st Encyclopedia
Pliny the Elder was a Roman author, naturalist, and natural philosopher, as well as naval and army commander of the early Roman Empire, and personal friend of the emperor Vespasian.
Spending most of his spare time studying, writing or investigatin... |
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Al-Biruni, Persian Mathematician
Abu Rayhan Biruni was a Persian mathematician, physicist, scholar, encyclopedist, philosopher, astronomer, astrologer, traveller, historian, pharmacist, and teacher, who contributed greatly to the fields of mathematics, philosophy, medicine, and scie... |
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