Translation of title . . . A bit at a time, the bird makes his nest.

The fascination of assembling components and ending with a flying bird has not changed since the origin of dreamers like Leonardo da Vinci, Lilienthal and Alberto Santos Dumont.

There was also the fascination of assembling components and ending with a workable radio system.

Anyone may ask what I know about that and you will get an answer with pictures.

Zor