Biomimetics

The yellow desert scorpion
survives when sand whirls, whips;
electo-microscopy has shown
fine detail that equips
and halves the rate of sand-erosion
(checked out by computer simulation)
– its coat has microscopic texture
– this patterned bumpy surface structure
they try to imitate on blades
of helicopter rotors,
to lengthen desert working lifespan
but can't achieve such super grades
of microscopic fine design.