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Title: The Round Earth and Christopher Columbus
Url: http://www.phy6.org/stargaze/Scolumb.htm
Creator: Stern, David P. (David Peter), 1931-
Publisher: David P. Stern
Description: This web page, created by David P. Stern, describes observations that show the earth is a sphere and the history of these observations. The round shape of the Earth may be inferred from the existence of a horizon at sea. Ancient Greeks deduced it from the shape of the Earth's shadow when the Moon is eclipsed and from stars visible only in southern countries. Eratosthenes accurately estimated the size of the Earth, but Columbus based his plans on an incorrect value, by which India would be much closer to Spain. This is part of a large web site, "From Stargazers to Starships" the presents physics concepts using space science and an historical perspective. Spanish, French, and Italian translations are available, as well as links to lesson plans for teachers.
LC Classification: History (America) -- America -- Discovery of America and early explorations -- Columbus (Cristoforo Colombo)
Science -- Astronomy -- Descriptive astronomy -- Solar system -- Planets. Planetology -- Earth as a planet. Astronomical geography
Science -- Astronomy -- History
Science -- Astronomy -- History -- Ancient -- Greek
Science -- Astronomy -- History -- Medieval
GEM Subject: Science -- Astronomy
Social studies -- Geography
Key Concept: Astronomy -- Earth
Date Issued: 2004-12-12
Resource Type: Instructional Materials
Reference
Science Materials
Teaching Guides
Format: html
Audience: College/University Instructors
Higher Education
Secondary Education
Students
Teachers
Technical School First Cycle
Technical School Second Cycle
University First Cycle
University Second Cycle
Vocational Training
Language: English
French
Italian
Spanish
Rights: Dr. David P. Stern
Access Rights: Free access
Date Of Record Release: 2009-04-14 03:00:02 (W3C-DTF)
Date Last Modified: 2009-04-13 16:13:46 (W3C-DTF)
Source: comPADRE  comPADRE
Full Record Views: 131
Resource URL Clicks: 15
Cumulative Rating: NOT YET RATED
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