[The library of Eratosthenes]

Site description

Eratosthenes experiment : Put a staff to the sun, measure its shadow when the sun is at its highest point, deduce the angle of the solar rays compared with the vertical staff, then exchange your results with another class under another latitude. Then, a few geometrical drawings and a rule of three give you the length of earth’s meridian.

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The experiment of Eratosthenes

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This Web site is under construction. You will find the totality of the articles on the Web site in English or French . All the articles are not translated yet. Many translations need to be improved. Thank you for your patience and your comprehension.

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janvier/january

16 Beloeil
22 Cañada de Gómez
28 L’Albenc
29 Cañada de Gómez

février/february

05 Lafrançaise
06 Lafrançaise
14 Cañada de Gómez
20 Beloeil
25 Cañada de Gómez

mars/march

15 Lafrançaise
16 Hồ Chí Minh City - Lafrançaise
18 Beloeil - Cañada de Gómez - Port Lincoln
19 Leadville - Pozzallo
20 Arras - Bar Harbor - Cañada de Gómez - Lafrançaise - Madison - Nutley - Warangal
21 Adelaide - Duluth
22 Leadville - Toszek
23 Montreal - Pozzallo
24 Duluth - Lafrançaise - Vastseliina
25 Jakarta
26 Xiamen

avril/april

03 Lafrançaise
07 Lafrançaise
14 Lafrançaise
16 Xewkija
18 Lafrançaise
20 Lafrançaise
21 Lafrançaise - Cluj Napoca
22 Beloeil - Cluj Napoca
23 Cluj Napoca
26 Cañada de Gómez

mai/may

01 Elizabeth
09 Arras 2005 2008 - Lafrançaise 2005 2006
11 Arras - Cañada de Gómez - Lafrançaise - Xewkija
13 Arras
16 Beloeil - Lafrançaise 2006 2008
19 Lafrançaise - Pujato
20 Beloeil - Lafrançaise 2005 2008
21 Cluj Napoca
23 Arras - Lafrançaise
25 Arras - Cañada de Gómez - Lafrançaise - Theux
30 Cluj Napoca - Lafrançaise 2005 2008
31 Lafrançaise

juin/june

02 Lafrançaise
03 Lafrançaise
04 Cañada de Gómez - Lafrançaise
06 Cañada de Gómez
08 Cañada de Gómez - Lafrançaise
09 Allahabad - Arras - Cluj Napoca 2006 2008 - Lafrançaise 2005 2006 2008 - Pleiku - Pujato - Xewkija
10 Cluj Napoca - Lafrançaise 2005 2008
12 Lafrançaise
13 Lafrançaise
15 Cañada de Gómez - Lafrançaise - Xewkija
16 Adelaide - Allahabad - Arras - Beloeil - Cluj Napoca - Lafrançaise 2006 2008
17 Lafrançaise
18 Lafrançaise
19 Lafrançaise
20 Arras - Cañada de Gómez
21 Lafrançaise - Xewkija

juillet/july

21 Cañada de Gómez
26 Meerut - Cluj Napoca - Pleiku

août/august

21 Cañada de Gómez
25 Arras
29 Panama city

septembre/september

17 Lafrançaise - Stanford
18 Lafrançaise
19 Cañada de Gómez - Lafrançaise - New York
20 Lafrançaise - Wharton
21 Adelaide - Cañada de Gómez - Chillicothe - Lafrançaise - Warren - Yuba City
23 Auckland - Greenfield Park - Pachuca
24 Arras - Baungon - Gulf Breeze - Lafrançaise - Maricopa - Virginia Beach
25 Lafrançaise - New York - Wrocław
26 Placerville
28 Arras - Lafrançaise - Naples

octobre/october

10 Lafrançaise
21 Cañada de Gómez
24 Cañada de Gómez

novembre/november

09 Lafrançaise - Palma de Mallorca
10 Cañada de Gómez
16 Cañada de Gómez - Lafrançaise
28 Beloeil
29 Cañada de Gómez
30 Arras - Lafrançaise

décembre/december

01 Palma de Mallorca
12 Cañada de Gómez
14 Barranha - Lafrançaise
20 Arras
21 Arras - Lafrançaise

Lucia Gutu ’s editorial : WHY A PROJECT ?

WHY A PROJECT ?

The most recent articles

IYA 09

Monday 18 May 2009 by perbosc

International Year of Astronomy 2009 (Eratosthenes)

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Dimapur

Wednesday 31 December 2008 by perbosc

This experiment was in Dimapur(nagaland) on 31st dec 08 deepak sharma

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Chitré

Monday 22 December 2008 by perbosc

Table of contents Lunes, 22 de diciembre de (...)Martes, 23 de diciembre (...) PROYECTO ERATÓSTENES 2008 Registro Solar y Medida de la Sombra Escuela Hipólito Pérez Tello Chitré – Panamá Profesora: Verónica Castro Longitud del Gnomon: 100 cm Lunes, 22 de diciembre de 2008 (...)

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Lafrançaise

Sunday 21 December 2008 by perbosc

Collège Antonin Perbosc (FRANCE)
44°08’ N
01°15’ E

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Cluj Napoca

Friday 19 December 2008 by perbosc

(ROUMANIE)
College National Pedagogique "Gheoghe Lazar"
Groupe Scolaire de Protection de L’Environnement

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Caseros

Thursday 18 December 2008 by perbosc

Escuela ESB 5 de Caseros (ARGENTINA)
34º 37’ S
58º 35’ O

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Beloeil

Thursday 18 December 2008 by perbosc

Ecole le Tournesol (CANADA)
45°35’ N
72°48’ O

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Marina Di Carrara

Wednesday 17 December 2008 by perbosc

Scuola Primaria Paradiso A (ITALIE)

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VIDEO

Tuesday 11 November 2008 by perbosc

Video Zapping

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Caseros

Tuesday 11 November 2008 by perbosc

Caseros, Provincia de Buenos Aires, Latitud Sur 34º 37’ Longitud Oeste 58º 35’ Las mediciones que logramos el día del equinoccio de primavera (para nosotros) son las siguientes: Gnomon 100 cm. Long. de la sombra 74 cm. Ángulo solar 34.5º Dirección de la sombra Hacia el (...)

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