Website Detail Page
written by
David Stern
This interesting site describes the early evidence for a round Earth and also Eratosthenes remarkable measurement of Earth's circumference. You'll see that Columbus was not the first to imagine sailing west to India, and that he planned to get there based on an underestimation of the distance he had to travel.
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Record Link
<a href="https://www.compadre.org/informal/items/detail.cfm?ID=1544">Stern, David. The Round Earth and Christopher Columbus. December 12, 2004.</a>
AJP/PRST-PER
D. Stern, The Round Earth and Christopher Columbus (2004), <http://www.phy6.org/stargaze/Scolumb.htm>.
APA Format
Stern, D. (2004, December 12). The Round Earth and Christopher Columbus. Retrieved July 12, 2025, from http://www.phy6.org/stargaze/Scolumb.htm
Chicago Format
Stern, David. The Round Earth and Christopher Columbus. December 12, 2004. http://www.phy6.org/stargaze/Scolumb.htm (accessed 12 July 2025).
MLA Format
Stern, David. The Round Earth and Christopher Columbus. 2004. 12 Dec. 2004. 12 July 2025 <http://www.phy6.org/stargaze/Scolumb.htm>.
BibTeX Export Format
@misc{
Author = "David Stern",
Title = {The Round Earth and Christopher Columbus},
Volume = {2025},
Number = {12 July 2025},
Month = {December 12, 2004},
Year = {2004}
}
Refer Export Format
%A David Stern %T The Round Earth and Christopher Columbus %D December 12, 2004 %U http://www.phy6.org/stargaze/Scolumb.htm %O text/html
EndNote Export Format
%0 Electronic Source %A Stern, David %D December 12, 2004 %T The Round Earth and Christopher Columbus %V 2025 %N 12 July 2025 %8 December 12, 2004 %9 text/html %U http://www.phy6.org/stargaze/Scolumb.htm Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.
Citation Source Information
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