No belisk

It is possible to read the time on a sundial which has no gnomon or obelisk. Those sundials are called analemmatic sundials.
Calculate and draw your analemna  Your own shadow will show what time it is.

Madhya Pradesh Council of Science & Technology, Bhopal

27 december 2013

Mahamaya Balika Inter College, Noida  

24 december 2013


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