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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