Superegg (nonfiction): Difference between revisions
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[[File:Superegg.jpg|thumb|Superegg rendered in brass.]]In [[Geometry (nonfiction)|geometry]], a '''superegg''' is a solid of revolution obtained by rotating an elongated superellipse with exponent greater than 2 around its longest axis. It is a special case of superellipsoid. | [[File:Superegg.jpg|thumb|Superegg rendered in brass.]]In [[Geometry (nonfiction)|geometry]], a '''superegg''' is a solid of revolution obtained by rotating an elongated superellipse with exponent greater than 2 around its longest axis. It is a special case of superellipsoid. | ||
Unlike an elongated ellipsoid, an elongated superegg can stand upright on a flat surface, or on top of another superegg. This is due to its curvature being zero at the tips. The shape was popularized by Danish poet and scientist [[Piet Hein (nonfiction)|Piet Hein]] (1905–1996). | Unlike an elongated ellipsoid, an elongated superegg can stand upright on a flat surface, or on top of another superegg. This is due to its curvature being zero at the tips. The shape was popularized by Danish poet and scientist [[Piet Hein (nonfiction)|Piet Hein]] (1905–1996). | ||
A 1-ton superegg made of steel and aluminium was placed outside Kelvin Hall in Glasgow in 1971, on occasion of a lecture by Piet Hein. | |||
Supereggs of various materials were sold as novelties or "executive toys" in the 1960s. | |||
== In the News == | |||
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</gallery> | |||
== Fiction cross-reference == | |||
* [[Crimes against mathematical constants]] | |||
* [[Gnomon algorithm]] | |||
* [[Gnomon Chronicles]] | |||
* [[Mathematics]] | |||
== Nonfiction cross-reference == | |||
* [[Piet Hein (nonfiction)]] | |||
* [[Mathematics (nonfiction)]] | |||
* [[Superellipse (nonfiction)]] | |||
== External links == | |||
* [Superegg ] @ Wikipedia | |||
[[Category:Nonfiction (nonfiction)]] | |||
[[Category:Geometry (nonfiction)]] | |||
[[Category:Mathematics (nonfiction)]] | |||
[[Category:Shapes (nonfiction)]] | |||
Latest revision as of 03:41, 16 December 2020
In geometry, a superegg is a solid of revolution obtained by rotating an elongated superellipse with exponent greater than 2 around its longest axis. It is a special case of superellipsoid.
Unlike an elongated ellipsoid, an elongated superegg can stand upright on a flat surface, or on top of another superegg. This is due to its curvature being zero at the tips. The shape was popularized by Danish poet and scientist Piet Hein (1905–1996).
A 1-ton superegg made of steel and aluminium was placed outside Kelvin Hall in Glasgow in 1971, on occasion of a lecture by Piet Hein.
Supereggs of various materials were sold as novelties or "executive toys" in the 1960s.
In the News
Fiction cross-reference
Nonfiction cross-reference
External links
- [Superegg ] @ Wikipedia