Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006asuai...1...44r&link_type=abstract
Astronomia. La rivista dell'Unione Astrofili Italiani (ISSN 0392-2308), N. 1, p. 44 - 51 (gennaio-febbraio 2006)
Astronomy and Astrophysics
Astronomy
Teaching In Astronomy, Earth
Scientific paper
Easy but effective methods used in past centuries allow rediscovery and good knowledge of the planet Earth. The latitude station and planetary radius were measured with Eratosthenes method. The gravity acceleration obtained from pendulum period was used to calculate the terrestrial mass and the density of internal planetary layers. Finally, the estimate of atmosphere density and geometrical thickness complete the view of the planet's properties.
Cerasani Paolo
Cerratti Valentina
Cofini Marika
D'Amico Angelalucia
di Nardo Giustino
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