History, 08.10.2020 09:01 Jwhite8602
Eratosthenes, who lived in Alexandria around 200 B. C., learned that at noon on the summer solstice the sun shined vertically into a well in Syene (modern Aswan, due south of Alexandria). He found that on the same day in Alexandria the sun was about 7 degrees short of being directly overhead. Since 7 degrees is about 1 50 of a full circle of 360 degrees, he concluded that the distance from Syene to Alexandria was about 1 50 of the Earth's circumference. He knew from travels that it was a 50-day trip and that camels could travel 100 stades per day. What was Eratosthenes' measure, in stades, of the circumference of the Earth? stades One estimate is that the stade is 0.104 mile. Using this estimate, what was Eratosthenes' measurement of the circumference of Earth in miles? mi
Answers: 3
History, 21.06.2019 17:50, minie66
Which progressive reform was least related to the causes and effects of world war i? o legislation limiting the use of child labor o establishing 8-hour workdays for railroad workers o reducing tariffs on imported goods o expanding women's rights and the right to vote
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History, 22.06.2019 04:00, jasontbyrer
What were some of the new consumer appliances that americans could purchase in the 1920s
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Eratosthenes, who lived in Alexandria around 200 B. C., learned that at noon on the summer solstice...
Mathematics, 24.11.2021 18:30