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Editorial
- What is maths for? - What do we hope people will know after studying maths at school?
- New Plus posters! - Find out how you can get hold of your own copy of our brilliant new poster!
- Specially for students - This issue of Plus brings you the first of an occasional series expecially for use in the classroom.
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Plus Magazine
September 2003
In the first of a new series 'Imaging Maths', Plus takes an illustrated tour of an extraordinary geometric construction: the Klein bottle.
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Imaging maths - Inside the Klein bottle
September 2003
Experiments
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The following two images show different closed tubes. Which of them is orientable, and therefore a torus, and which is a non-orientable Klein bottle? The applet versions allow you to rotate the shapes and to switch on normal vectors to make it easier to investigate.
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Imaging maths - Inside the Klein bottle
September 2003
The Triple Klein Bottle
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Imaging maths - Inside the Klein bottle
September 2003
Torus from Two Klein Bottles
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Imaging maths - Inside the Klein bottle
September 2003
The Interactive Klein Bottle
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Imaging maths - Inside the Klein bottle
September 2003
Lawson-Klein bottle in S3
This model is large and may take a longer time to load.
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Imaging maths - Inside the Klein bottle
September 2003
Klein Bottle with Möbius Band
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Imaging maths - Inside the Klein bottle
September 2003
Klein Bottle with Construction Blocks
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