Red Roses Appear Black

Function

Black roses appear black even though they contain the same pigment as red roses on account of the narrow epidermal cells that cover the surface of their petals. Shadows are created when light hits the cells at a certain angle, giving the flowers their black appearance.

Functional Classification

Resouce/Energy/Information Transmission & Production:
Color changing

Environmental Solution Classification

Related Literature

Yasuda H. 1986. Hana no Iro no Nazo. Tokai University Press.

Technical Application

Products and Services

Type of Business

Proposals of Applied Technology

The structure of red/black roses can be used to develop clothes and materials whose hues change slightly according to the brightness of a room’s light, or the angle from which one views the fabric.

Proposals of Applied Industry

Related Life Style