Infinity for Kids: What Infinity Is and Why Some Are Bigger

The story of infinity for kids: why there is no biggest number, and how Georg Cantor showed in the 1870s that some infinities are bigger than others.
• How the even numbers pair up with all the whole numbers, one to one
• Hilbert's Hotel, where a full hotel always has room for one more guest
• Why other mathematicians mocked Cantor, and why he kept going
• Quiz questions to answer along the way
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