Category Archives: Phrase

What is a Reuleaux Triangle

You know the circle: a figure which the RADIUS is constant. It is the only figure who has a constant RADIUS.

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What is Unicef?

Unicef stands for the United Nations International Children’s Emergency Fund (International of emergency of the United Nations Fund for children), denomination which was used until 1953. The Universal encyclopedia 2012 gives its definition: “UN agency created in 1946 to help … Continue reading

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