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Heliocentric Theory- It was invented in the early modern age. It is important so we can measure how far away planets are and to measure how heavy a planet is. Nicolaus Copernicus- Nicolaus Copernicus was born Feb 19, 1473. At Torun, Poland. He died 1543. At Frombork, Poland. He specialized in astronomy. He invented theContinue reading “History 04 Lesson 90”
I don’t know what the best story or book I have read is. Cause I have read and heard so many books and stories. I can’t remember half of them.
Mariner’s Astrolabe- Before the mariner’s astrolabe there was the cross staff and the quadrant. The mariner’s astrolabe can be used in wind and on ships. Hipparchus invented the mariner’s astrolabe in 2nd century BC. He invented it in Oman. Double-Entry Bookkeeping- Luca Pacioli invented double-entry bookkeeping in 1494 AD. He invented it in Milan. IfContinue reading “History 04 Lesson 85”
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