Egg of Columbus
The names Egg of Columbus and Columbus Egg have been used for several mechanical toys and puzzles inspired on the legend of Columbus balancing an egg on its end to drive a point. Typically, these puzzles are egg-shaped objects with internal mechanisms that make the egg stand up, once the user discovers the secret. Mechanisms typically used in such toys include moving weights, mercury flowing in sealed tubes or compartments, and steel balls rolling on grooves and pits.
Also recorded as Columbus Egg
Egg of Columbus
Manuel Benitez · http: from · Public domain
- Field
- toy
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
The names Egg of Columbus and Columbus Egg have been used for several mechanical toys and puzzles inspired on the legend of Columbus balancing an egg on its end to drive a point. Typically, these puzzles are egg-shaped objects with internal mechanisms that make the egg stand up, once the user discovers the secret. Mechanisms typically used in such toys include moving weights, mercury flowing in sealed tubes or compartments, and steel balls rolling on grooves and pits.
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Documentary evidence
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wikidata · Q5347848
In this article
History
History
A Columbus Egg puzzle using a rolling ball was described in an 1893 book. The Montgomery Ward catalog of 1894 includes a "Columbus Egg" toy. There are at least 18 United States patents for such devices, starting from 1891. The German company Pussycat sells a Columbus Egg that can be balanced by holding it upright for 25 seconds, then quickly inverting it. The egg will then stand on its pointed end for 15 seconds, then topple on its side.
Identity
Identity
Egg of Columbus is classified as a toy.
Literature
Literature
The "Egg of Columbus" for making the world's toughest fibres.
Columbus' Egg: The Real Determinant of Capital Structure, 2002
Columbus' Egg, Scientific American, 1886
Auenbrugger's Solution and Columbus’ Egg Effect in Health Technology Adoption, 2023. ‘The Egg of Columbus’, Gold Paved the Way, 1967
Columbus' egg, Psychiatric Bulletin, 1992
Generalised Model of Multiphase Tesla’s Egg of Columbus and Practical Analysis of 3-Phase Design, Electrica, 2018
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Professor Hoffmann. Puzzles Old and New. 1993. 0-947533-04-4.
- 2.Martin Gardner. The great egg-balancing mystery. The Skeptical Inquirer. 20. 3. May–June 1996 usurped.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
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Secondary witness
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
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