Why do windmills typically have 4 blades, yet all modern wind turbines have 3?

Question

Why do windmills typically have 4 blades, yet all modern wind turbines have 3?

In: 9124

Answer 1

Mice can have OCD and they didn’t like having an uneven number of blades on their windmills in old Amsterdam

Answer 2

Mice can have OCD and they didn’t like having an uneven number of blades on their windmills in old Amsterdam