Wind spins the cups in an anemometer, and stronger winds spin the instrument more rapidly. The specific ratio between wind speed and the speed of cup rotation varies based on the particular specifications of a given instrument. A standard cup anemometer is unable to determine the direction of wi...
A thunderstorm is a storm with lightning and thunder. Lightning is a bright flash of electricity made by a thunderstorm. Unit 1 The world of our senses Look at the following sentences and tell us the two meanings of the underlined word. Try to describe two parts of speech. Lesson 5 Novemb...
Wind spins the cups in an anemometer, and stronger winds spin the instrument more rapidly. The specific ratio between wind speed and the speed of cup rotation varies based on the particular specifications of a given instrument. A standard cup anemometer is unable to determine the direction of wi...