Template:Potd/2012-03-14 (en)

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Animation of the act of unrolling a circle's circumference, illustrating the ratio π.

This is the English translation of the Picture of the day description page from .

Animation of the act of unrolling a circle's circumference, illustrating the ratio π.

Descriptions in other languages:

Potd/2012-03-14 (cs) Potd/2012-03-14 (da) Potd/2012-03-14 (de)
Potd/2012-03-14 (en) Potd/2012-03-14 (es) Potd/2012-03-14 (fr)
Potd/2012-03-14 (hsb) Potd/2012-03-14 (hu) Potd/2012-03-14 (it)
Potd/2012-03-14 (ja) Potd/2012-03-14 (ka) Potd/2012-03-14 (ko)
Potd/2012-03-14 (mk) Potd/2012-03-14 (nl) Potd/2012-03-14 (ru)
Potd/2012-03-14 (uk) Potd/2012-03-14 (zh-hans)