The Round Earth and Christopher Columbus

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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:

Reference Material
Instructional Material
Instructional Material -- Instructor Guide/Manual

Format:

Document -- HTML

Audience:

Educator
Learner

Education Level:

High School
Higher Education
Higher Education -- Undergraduate (Lower Division)
Higher Education -- Undergraduate (Upper Division)
Higher Education -- Technical Education (Upper Division)
Higher Education -- Technical Education (Lower Division)
Vocational/Professional Development Education

Language:

English
French
Italian
Spanish

Rights:

Dr. David P. Stern

Access Rights:

Free access

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Source:

comPADRE

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