colony of rats on the surface and almost certainly numerous complaints to the control agency. In short, the uncontrolled populations of rats in sewers constitute a reservoir which extends into all parts of a city and is capable of establishing new infestations on the surface. The structural damage caused by sewer rats can be considerable. They are
The Saffir-Simpson scale measures the intensity of a hurricane. Wind speed is measured on a scale of 1-5 to give an estimate of potential property damage and flooding along the coast. The Categories are as follows: Category One Hurricane: Winds 74-95 mph.
An anemometer is a device for measuring the velocity or the pressure of the wind, and is one instrument used in a weather station.The term is derived from the Greek word anemos meaning wind.his Site Might Help You. RE: How does an anemometer work? wind speed can be measured with an instrument called an anemometer, which looks like a horizontal winmill with cups at the end of each spoke.