Foto de Valentin Antonucci en Pexels Eratóstenes fue uno de los primeros en dar con un medio para medir la circunferencia de la tierra. Ya para ese tiempo, e incluso antes, se consideraba que la tierra

Photo by Bich Tran on Pexels Man's nature has led him to categorize his environment in order to better understand it and organize his activities. Many aspects, as far as our basic needs are concerned,

Photo from Valentin Antonucci in Pexels Eratosthenes was one of the first to come up with a means of measuring the circumference of the earth. Already by that time, and even earlier, the earth was considered

Credit: Wilson Malone in Pexels I remember that, some time ago, I was talking about how hot it was. It was almost the hot season in our country, so it was not so strange either, but the weather is always

Credit: Wilson Malone in Pexels I remember that, some time ago, I was talking about how hot it was. It was almost the hot season in our country, so it was not so strange either, but the weather is always