wow! I didn’t know the blades have teeth, have you ever been cut?

Question: wow! I didn't know the blades have teeth, have you ever been cut?
- Keywords:
  blade,
  cut,
  tooth
Asked by karig to Shahil on 15 Mar 2017.
- Shahil Juggernath answered on 15 Mar 2017:
  
  The blades are 40m off the ground when installed! They do not cut anything! The teeth are to help the aerodynamics. They’re just like the wing of an aeroplane. If you get a chance to fly, look out at the wing and you will see all little shapes added to help the aerodynamics.

Question: wow! I didn't know the blades have teeth, have you ever been cut?