Density is the measure of how many atoms are in a given space of a material. Basically, itâs how closely packed the atoms are in a material. To measure a materialâs density, you need to know how many atoms are in the material (the mass), and how much space it takes (volume).
Freebase(0.00 / 0 votes)Rate this definition: Wind rose. A wind rose is a graphic tool used by meteorologists to give a succinct view of how wind speed and direction are typically distributed at a particular location. Historically, wind roses were predecessors of the compass rose, as there was no differentiation between a cardinal direction and the wind which blew from such a direction.
Wind is simply air in motion. Winds are created by the sun's uneven heating of the atmosphere in combination with the irregular surface of the earth and the earth's rotation. These winds can be harvested using wind turbines and used to make electricity.The force of the wind makes the wind turbine blades spin, and the energy of this motion is converted into electricity by a generator.ind is simply air in motion. Winds are created by the sun's uneven heating of the atmosphere in combination with the irregular surface of the earth and the earth's rotation. These winds can be harvested using wind turbines and used to make electricity.