The Physics of Windmill Design

This video was created in partnership with Bill Gates, inspired by his new book “How to Avoid a Climate Disaster.” Find out more here: gatesnot.es/3u...
This video is about how physics dictates the design of modern windmills - why they are so big, have so few blades, and have such skinny blades.
REFERENCES
H. Glauert: Aerodynamic Theory, 1935 Division L (Airplane Propellers), Chapter XI: Windmills and Fans
Wind power extraction fundamentals
home.uni-leipz...
Betz's Law
en.wikipedia.o...
Tip Speed Ratio
en.wikipedia.o...
Aerodynamics of Wind Turbines Book
www.amazon.com...
Penn State Wind Turbine Aerodynamics Lesson
www.e-educatio...
Wind Power Physics youtube video
• Wind Power Physics
Why do Wind Turbines Have Three Blades?
/ why-do-wind-turbines-u...
Wind Power Fundamentals
web.mit.edu/win...
Wind Power Explained
www.calcunatio...
Drag Coefficient
dx.doi.org/10.1...
Reynolds Number and Drag
www2.eng.cam.ac...
Reynolds Number
en.wikipedia.o...
Viscosity of Air
en.wikipedia.o...
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich