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Not just knots: the secrets of khipu
The Inka way of counting
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Science fiction, science fact: reports from the frontiers of physics
What is time? What is space? Are there parallel universes? Join Plus and FQXi on a journey exploring these...
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Why you shouldn't use a toss for overtime
In soccer a coin toss is used to decide who goes first in a penalty shootout and similarly in American...
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What Planck saw
Cosmologists gathered in the Netherlands last week to discuss a new view of the Universe. The Universe as...
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Make a difference to mathematics
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Folding the future: From origami to engineering
Back in the days before smart phones with GPS functions became ubiquitous we had maps. Remember how hard it...
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