Add to ORKGWe describe the projects “Eratosthenes 2009” and “Eratosthenes 2010 America,” carried out during the International Year of Astronomy (2009) in Argentina and with almost all the countries in North and South America during 2010. More than 15 000 students at more than 200 schools each year determined the radius of the Earth using the method that Eratosthenes employed more than 2000 years ago. The result obtained was 6290 km in 2009 and 6375 km in 2010, in good agreement with tabulated values of 6371 km [McCarthy and Petit, 2004, “IERS Conventions (2003),” IERS Technical Note No. 32, Frankfurt: Bundesamts für Kartographie und Geodäsie]. These projects involve history, mathematics, and astronomy to create an exciting activity with accurate scien...
Objective: To use a midday shadow on or close to the day of an Equinox to calculate Earth’s Polar Ci...
More than 2000 years, a Greek named Eratosthenes, employer of the library of Alexandria, ingeniously...
The relationship between the determination of the circumference of the Earth and the geographical ma...
Twenty-two hundred years ago, the Greek scientist Eratosthenes measured the circumference of the Ear...
As part of the commemorations of the International Year of the Physics and having as its main object...
This article is based on an activity used in a team-taught preservice course, “Integrating Geography...
In the third century B.C.E., Eratosthenes of Cyrene made a famous measurement of the circumference o...
Measuring the size of the Earth using sticks, “following in the footsteps of Eratosthenes” Emmanuel...
For my honors contract in the field of Astronomy, I decided to replicate the Greek scholar Eratosthe...
One of the main goals of the school and research system is the education of future scientists. Howev...
Multiple representations of a problem encourage students to make and strengthen connections across m...
AbstractBased on Eratosthenes’ method of “Measuring the Circumference of Earth,” dating from 276 BC,...
A Greek mathematician named Eratosthenes calculated an accurate measurementofthe Earth’s circumferen...
In the third century b.c.e., Eratosthenes of Cyrene made a famous measurement of the circumference o...
Ensino Médio::MatemáticaEratosthenes measured the circumference of Earth around 240 BC, based on the...
Objective: To use a midday shadow on or close to the day of an Equinox to calculate Earth’s Polar Ci...
More than 2000 years, a Greek named Eratosthenes, employer of the library of Alexandria, ingeniously...
The relationship between the determination of the circumference of the Earth and the geographical ma...
Twenty-two hundred years ago, the Greek scientist Eratosthenes measured the circumference of the Ear...
As part of the commemorations of the International Year of the Physics and having as its main object...
This article is based on an activity used in a team-taught preservice course, “Integrating Geography...
In the third century B.C.E., Eratosthenes of Cyrene made a famous measurement of the circumference o...
Measuring the size of the Earth using sticks, “following in the footsteps of Eratosthenes” Emmanuel...
For my honors contract in the field of Astronomy, I decided to replicate the Greek scholar Eratosthe...
One of the main goals of the school and research system is the education of future scientists. Howev...
Multiple representations of a problem encourage students to make and strengthen connections across m...
AbstractBased on Eratosthenes’ method of “Measuring the Circumference of Earth,” dating from 276 BC,...
A Greek mathematician named Eratosthenes calculated an accurate measurementofthe Earth’s circumferen...
In the third century b.c.e., Eratosthenes of Cyrene made a famous measurement of the circumference o...
Ensino Médio::MatemáticaEratosthenes measured the circumference of Earth around 240 BC, based on the...
Objective: To use a midday shadow on or close to the day of an Equinox to calculate Earth’s Polar Ci...
More than 2000 years, a Greek named Eratosthenes, employer of the library of Alexandria, ingeniously...
The relationship between the determination of the circumference of the Earth and the geographical ma...