Grass cutting rates will also vary depending on the frequency of mowing. If you have your lawn trimmed too infrequently, it will be more difficult to maintain. They are also based on square footage, though there is a minimum cost.rass cutting rates will also vary depending on the frequency of mowing. If you have your lawn trimmed too infrequently, it will be more difficult to maintain. They are also based on square footage, though there is a minimum cost.
A tonometer is a tool used to check the pressure exerted by the fluid inside a person's eyes in terms of millimeters of mercury (mmHg). This is done to make sure the eyes and optic nerves are healthy.
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.