vane

MOBILE PUBLICITY USING WIND VANE USING A VANE ON A MECHANISM WITH FOUR CARDINAL POINTS FOR THE USE OF WIND VANE TO SHOW WHICH WAY THE WIND IS BLOWING, ALSO TO PUBLICIZE SCULPTURE GARDEN

posted on September 9, 2019

CHAPTER ONE The general term wind is air in motion. It’s speed measured by an instrument know as an Anemometer. The direction of …