Pathfinders Da Vinci Helicopter knife Finished model size is 38cm

Finished model size is 38cm high by 23 cm wide

non-porous borosilicate glass cup has a thermal silicon sleeve and splash proof lid which is an attractive solution to enjoying your everyday brew without impacting on mother nature

cats as time pieces

A great multi tasking hand tool

Pathfinders Da Vinci Helicopter knife Finished model size is 38cmLeonardo da Vinci developed concepts for a giant air screw late in the 15th century. This working model uses a bevel gear, also from his drawings, to spin the canopy and support structure, illustrating the way Leonardo thought flight might be possible. A fun and inspiring project from one of the greatest minds of history. Easy to make from pre cut and pre drilled sustainable timber. Finished model size is 38cm high by 23 cm wide.