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              Earth's circumference to be measured at 
              Jantar Mantar 
            
            
            Thursday June 21, 2012 12:38:31 PM, 
              IANS |  
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              New Delhi: With June 
              21 being the Summer Solstice and the year's longest day, the 
              Science Popularisation Association of Communicators and Educators 
              (SPACE) here will mark Thursday by measuring the earth's 
              circumference.
 As part of Project Paridhi, SPACE will organise programmes at 
              Jantar Mantar from 9.30 a.m. till 2 p.m.
 
 The participants will be able to take actual measurements of the 
              shadows made by the sun to measure the circumference of the earth 
              as done 2,300 years ago by Greek astronomer Eratosthenes.
 
 The project involves participants taking measurement of shadows at 
              noon, at different places on the same longitude, such as Delhi and 
              Bangalore.
 
 SPACE will partner with astronomers from Kazakhstan, Nepal, 
              Pakistan and other SAARC countries for conducting the Eratosthenes 
              experiment.
 
 Besides Jantar Mantar, SPACE will conduct the experiment at Bal 
              Baharati Public School in Delhi and Gyan Shakti Vidyalaya in Noida.
 
 Apart from the experiment, SPACE has partnered with the 
              Archeological Survey of India to conduct a heritage walk around 
              Jantar Mantar to show how the astronomical observatory was used 
              for calculation of time and position of celestial bodies.
 
 
              
 
 
 
 
 
 
 
                
                
              
 
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              (Photo: IANS) |  
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