Over 2,000 years ago Eratosthenes, the ancient Greek scholar, measured the Earth's circumference with just a stick, sunlight and simple math

Ancient Greek scholar Eratosthenes calculated Earth's circumference using sunlight and geometry. He observed shadows in Syene ...
Hackaday

sieve of eratosthenes

I ended up with just enough time over the weekend to pull together a quick project. I implemented the Sieve-of-Eratosthenes on an ARM chip. If you haven’t heard of the Sieve of Eratosthenes then you ...
Hackaday

Arduino-based Sieve Of Eratosthenes

[Darkmoonsinger’s] sister is finishing her graduate degree in mathematics, and [Darkmoonsinger] wanted to give her a gift that fit with her achievement. Naturally, building a Sieve of Eratosthenes ...
Gizmodo

How the Circumference of Earth Was Accurately Estimated 2000 Years Ago

Born around 276 B.C. in Cyrene, Libya, Eratosthenes soon became one of the most famous mathematicians of his time. He is best known for making the first recorded measurement of the Earth’s ...
Nature

Sieves of Eratosthenes

THE sieve of Eratosthenes has been used mainly for the determination of prime numbers—a function now presumably archaic. Sieves have other uses, including the finding of primes in arithmetical ...
PC Magazine

Sieve of Eratosthenes

A benchmark program used to test the mathematical speed of a computer. The program calculates prime numbers based on Eratosthenes's algorithm. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other ...