Different Levels of Strength Revealed in the Interior and Exterior of Birds’ Eggshells


Birds’ eggshells are tough enough to withstand cracking, even when pecked by a bird’s pointed beak. On the other hand, the shell’s structure makes it easy to crack from the inside so that baby birds can easily leave the shell.

Functional Classification

Efficiency(Energy Saving, Resource Saving, Light):
High intensity
Resistance to outside threatsShock resistance

Environmental Solution Classification

Related Literature

Oda J, Sakamoto J, and Tanaka S. 2002. Seibutsu kogaku to baionikku dezain. Tokyo: Baifukan. Juhachi ODA et al, Mechanical Evaluations of Structural and Material Composition of Eggshel , JSME International Journal, Series A, Vol.41, No.1, 1998

Technical Application

Products and Services

Type of Business

Proposals of Applied Technology

Eggshell structure can be used to design buildings that are highly resistant to earthquakes and strong winds. It can also be used to develop car windshields that are more resistant to shock from the outside, but less resistant to shock from the inside.

Proposals of Applied Industry

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