Zhen Xian Bao - "The Book of threads".

The pinnacle of the art of Chinese origami. Initially, they were used to carry sewing accessories. But the mathematics behind such a book is so complex that it is now being used even by NASA.

A chameleon smartphone! At MWC 2023 Tecno showed an unusual smartphone concept

At MWC 2023, Tecno showed a new technology called Chameleon Coloring Technology.

The technology uses a special material consisting of submicron prismatic elements that change direction when an electric field is applied and refract light of different wavelengths. The spectrum of colors is 1600 shades. These colors can be customized. For example, to notify about a low battery level.

Aptera has introduced a three-wheeled "solar" electric car that does not need to be recharged.