Imagine a cup of tea. Wrap a piece of string around the circumference of the cup, and measure the length of the string. Then, lay your spoon on top of the cup, making sure it lies across the centre of ...
Events to mark pi day on 14 March (16 March, p 4) rekindled thoughts of using pi in the search for intelligent life beyond Earth. Techniques for trying to establish contact include encoding the value ...
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