Windmill sails Vane - Any of several usually relatively thin, rigid, flat, or sometimes curved surfaces radially mounted along an axis, as a blade in a turbine or a sail on a windmill, that is turned by or used to turn a fluid.
It is another name for a windmill.
J.S Risdon
A windmill is un moulin à vent in French. A modern wind turbine is called une éolienne.
See the image in the link below
In order to enhance creep life of gas turbine blade, it is required to keep blade at lower temperature, hence internal cooling of blade is done.
it is the square blade
I don't think there is another name other than blade.
The average size of a windmill blade ranges from 35 to 45 meters (115 to 148 feet) in length.
It's called "blade" or a "sail".
vane - Any of several usually relatively thin, rigid, flat, or sometimes curved surfaces radially mounted along an axis, as a blade in a turbine or a sail on a windmill, that is turned by or used to turn a fluid.
vane
J.S Risdon inventeed it and in December 1872
22/3
Technically, it is. Each blade is a lever, with the axle being the fulcrum of each lever.
Another name for a windmill is the wind turbine
The average cost of windmill blades for a typical wind turbine installation is around 30,000 to 50,000 per blade.
Yes, a windmill typically has rotational symmetry because it looks the same when rotated around its central axis by certain angles. This is commonly seen in the blades of a windmill where each blade is identical and symmetrically arranged around the axis.