Professional paper

A method for Creating Ruled Surfaces and its Modifications

Györgyi Führer Nagy ; Sopron, Hungary

Abstract

The paper [1] induced me to combine the transcendental curves of LAMÉ with my observations on real bird-eggs [2]. Two segments of di.erent curves are connected at junctions points located on the y-axis. The obtained egglike shape looks nice, but the eye is cheating. It turns out that the curvature of these curves at the junction point has some surprising properties. These imperceptible phenomena are summarized in two theorems.

Keywords

bird-egs; egg-shaped curves; golden ratio

Hrčak ID:

3942

URI

https://hrcak.srce.hr/3942

Publication date:

17.2.2003.

Article data in other languages: croatian

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