Can You Answer These Basic Questions About Earth?
A. 4,000 miles B. 5,000 miles C. 6,000 miles The Earth’s radius is 3,958.8 miles long, and its circumference is 24,873.6 ...
BBC4y
Hands-on challenge: String around the Earth
Increase the circumference by 40%, increase the radius by 40% and so on. In the case of our 'string around the Earth' puzzle, the radius is being increased by 15cm, so we need to know that as a ...
Nature11d
Newton's Knowledge of the Radius of the Earth
IN a paper entitled "The Story of Newton's Inverse Square Law and his Use of a False Radius of the Earth" (J. Brit. Astro. Assoc., 50, 2; 1939), John Miller states that the story of Newton's ...
National Geographic news3y
Planet Earth, explained
The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system ...