Adults: The adult louse is about the size of a grain of rice and has the appearance of an ant. Lice have 6 legs with claws or pinchers at the end of each. Lice are can be dark brown to whitish in color . Lice also have the ability to adjust their hue to better blend in with people who have darker or lighter hair. Male lice are smaller than female lice. Female lice can lay up to 8 eggs per day but usually 5 per day is the average.
Windsock (primarily used to indicate wind direction, may also be used to estimate wind speed by its angle). Pitot tubes is a pressure measuring instrument used to measure fluid flow velocity, and more specifically, used to determine the airspeed of an aircraft. Remote sensing techniques:eteorological instruments to measure wind speed and/or direction. In meteorology wind direction is reported by the direction from which it originates. For example, a northerly wind blows from the north to the south.
Wind speed is measured using an anemometer. It is typically made up of cups attached to spindle. The stronger the wind the faster the cups rotate and the higher the reading. Several readings should be taken over a couple of minutes and an average taken. The measurement is sometimes made in knots but any speed unit is possible.