@Q.... agreed mate. Those blades are hollow. It made the tip turbulence visible. Which gave me the opportunity to have a rave about turbulence and aerodynamic matters, which affect Wind Turbines as well as aircraft. Think of the stresses involved if the wind becomes gusty.
Hangliding off a cliff near a Wind-farm, would be verboten.
May the farce be with you Glasshoppel. To coin a mixed metaphor....Marum.