A file photo of children gathered at the Jawaharlal Nehru Planetarium to witness the zero shadow phenomenon Can you calculate the circumference of the earth using the length of a shadow? Sounds ...
Wherever there is light, there should be a shadow. But people, all around the world, living between the Tropic of Cancer (+23.5 degrees latitude) and the Tropic of Capricorn (-23.5 degrees latitude), ...
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