The structure features a combination of sundials, a water clock and a wind vane.
From the en.wikipedia.org
You could also set the wind vane on a longer bamboo pole attached to a fence.
From the nzherald.co.nz
The roof-mounted wind turbine to generate electricity is no more obtrusive than a large wind vane.
From the washingtonpost.com
There's just so much to take in, right down to the Oriole wind vane perched high atop the facility.
From the heraldtribune.com
Later versions of this form consisted of a flat plate, either square or circular, which is kept normal to the wind by a wind vane.
From the en.wikipedia.org
Small turbines are pointed by a simple wind vane, while large turbines generally use a wind sensor coupled with a servo motor.
From the en.wikipedia.org
Saint-Gaudens added a flowing cloak of copper sheets, so she could act as a wind vane as well, and up she went on the Garden tower, to twirl on a swivel before the prevailing breeze.
From the time.com
Furthermore, since the wind varies in direction and the axis has to follow its changes, a wind vane or some other contrivance to fulfill the same purpose must be employed.
From the en.wikipedia.org
To obtain an accurate reading, the wind vane must be located well above the ground and away from buildings, trees, and other objects which interfere with the true wind direction.