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Incorporated, a worldwide network of science museums and related institutions.
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Measure Your World!

Join us this fall as we pilot a new student-centered project where teams 
from the United States, Chile, and Mexico partner to replicate the 
technique introduced by Eratosthenes to determine the circumference of 
the Earth. Around 240 BC, Eratosthenes used trigonometry and knowledge 
of the angle of elevation of the Sun at noon in Alexandria and in Syene 
to calculate the size of the Earth. Windows to the Universe, Educared, 
and CREA are working together to offer school children in the U.S., 
Chile, and Mexico the opportunity to form partnerships, take local 
measurements, and collaborate using the Eratosthenes method to Measure 
Your World.

All of the information necessary to participate in this pilot student 
project can be found on the Measure Your World Web sites 
(www.measureyourworld.org and www.midetumundo.org). Student teams must 
have a parent or adult sponsor to participate. At least one of the team 
members or adult sponsors must be fluent in both English and Spanish. 
This event is open to all students in the three participating countries 
and does not have to be affiliated with a formal K-12 school. 
Home-schooled children and children participating in after-school 
programs (e.g. the Scouts, 4-H, etc.) are welcome to participate.

In addition to taking the measurements and calculating the circumference 
of the Earth, student teams will be encouraged to learn more about their 
partners in the other participating countries. Suggested activities to 
promote cultural exchange can be found on the Web site.

Registration for the Measure Your World event will be open from August 
13 – September 14, 2007. Student teams will be notified of their 
partners by September 21, 2007. The time period for taking the 
measurements will be September 29 – October 7, 2007. For more 
information, please email [log in to unmask]

-- 
Linda Carbone
Exhibits Coordinator
UCAR Office of Education & Outreach
NCAR/UCAR
1850 Table Mesa Drive, Boulder, CO 80305
303-497-1185 (t)
303-497-2411 (f)
[log in to unmask]

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