WebAround 250 B.C., another Greek philosopher, Eratosthenes, measured the circumference of the Earth using the following equation: (360° ÷ θ) x (s) In this calculation, (s) is the … WebPutting Eratosthenes result into modern units, his estimate of the circumference of the Earth is as follows: Circumference = 50 x 5000 stadia = 250,000 stadia 250,000 stadia x 185 meters/stadion = 46,250 kilometers. The modern measurement is 40,070 kilometers. Eratosthenes' estimate is only about 15% too large!
The Eratosthenes Experiment: Proving the Earth is Spherical
WebJan 14, 2024 · Measuring the Earth. Eratosthenes is considered the inventor geography, particularly because he developed the system of latitudinal and longitudinal lines to map the world. ... Eratosthenes correctly developed a formula for calculating the Earth’s circumference, but his estimate included multiple errors. For example, the ancient … WebMar 3, 2009 · Eratosthenes (275 – 194 BC): Decides to calculate the Earth’s circumference based on his knowledge of Geography coupled with a mathematical Theorem from Euclid’s work “ The Elements”. His method was based on first hand knowledge of a town, (Syene) that lay approximately 500 miles south of Alexandria. porsche a4
Aisling O’Loughlin: Former Xpose presenter rants about flat earth …
The measurement of Earth's circumference is the most famous among the results obtained by Eratosthenes, who estimated that the meridian has a length of 252,000 stadia (39,060 to 40,320 kilometres (24,270 to 25,050 mi)), with an error on the real value between −2.4% and +0.8% (assuming a value for the stadion between 155 and 160 metres (509 and 525 ft)). Eratosthenes described his ar… WebSep 7, 2024 · In 200 B.C. Eratosthenes estimated Earth’s circumference at about 46,250 kilometers (28,735 miles). Today we know our planet's circumference is roughly 40,000 … WebIn 205 BC, Eratosthenes successfully determined the circumference of the Earth by measuring the length of the shadow cast by a rod. He did the measurement in Alexandria and timed it to coincidence when the Sun is directly overhead Syene. 2222 years after that, some flat-Earthers tried to refute the Eratosthenes experiment. porsche 997 wheel center caps