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Archimedes Lab Project

Inspiring and Creative Resources & Tutorials for Science-Curious People

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Tag: donut

Posted on February 14, 2020

Topology & Ethology

The ways ravens carry two donuts at once! Read more.
Raven donuts
Posted on May 21, 2018August 3, 2018

Mug to Doughnut

Showing why a doughnut and a mug are topologically equivalent…

topologically equivalent

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About Archimedes Lab

Mental activities and tutorials that enhance critical and creative thinking skills.

We provide compelling educational and entertaining content to book and magazine publishers. We also invent and develop thinking games and visual material for recreational, cultural or advertising use.

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Recent Posts

  • Two Meanings, One Word: The Tautology Tango March 13, 2023
  • Fibonacci Zoetropes March 2, 2023
  • Arithmetic Mean ≥ Geometric Mean February 27, 2023
  • A Curious Constant January 26, 2023
  • Analog Binary-to-Decimal Converter January 11, 2023
  • Amazing Double Cube January 9, 2023
  • Harshad Years January 5, 2023

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Our Recent Educational Books

Eye Bogglers
Ultimate Eye Twisters
Eye Bogglers
ISBN 1780970749
Ultimate Eye Twisters
ISBN 1783124482
Fantastic Optical illusions
illusion playing cards
Fantastic Optical Illusions
ISBN 178739235X
Illusion d'Optique playing card deck
Optical illusions
You can't possibly color this
Optical Illusions
ISBN 1682973395
You can't possibly color this!
ISBN 1633223515
Impossible Folding Puzzle and Other Mathematical Paradoxes
Hidden Picture Puzzles
Impossible Folding Puzzles
ISBN 0486493512
Hidden Picture Puzzles
ISBN 1623540380
How To Draw Incredible Illusions
Amazing Optical Illusions
How To Draw Incredible Illusions
ISBN 1623540607
Amazing Optical Illusions
ISBN 1787391639
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Via Sivori 2A
16136 Genoa, Italy

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Mental activities and tutorials that enhance critical and creative thinking skills

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