## Pi Day quiz: How well do you know the mathematical constant?

14 March is Pi Day, a global celebration of the constant representing the ratio of a circle's circumference to its diameter. Think you know pi? Try our quiz

### Pi Day quiz: How well do you know the mathematical constant?

14 March is Pi Day, a global celebration of the constant representing the ratio of a circle's circumference to its diameter. Think you know pi? Try our quiz

**Wed 13 Mar 19** from Newscientist

### Einstein quiz: Can you guess which quotes are really his?

To celebrate Einstein's birthday, see if you can tell which quotes are from the great man of physics

**Wed 13 Mar 19** from Newscientist

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