Vodafone Group Plc (VOD) is a British multinational telecommunications based out of Newbury, Berkshire, England. Founded in 1991, Vodafone offers a wide range of products and services across the globe. It operates in over 30 countries and partners with over 40 markets worldwide.
Originally Answered: What is a Mach number? It is the ratio of velocity of an object to the velocity of sound. If the Mach no is one then object is moving with the velocity of sound.
The definition of a windmill is an engine that makes use of the wind as its power source. Windmills grind grains, pump water, and generate electricity. The stronger the wind, the faster the rotation of the blades. The blades automatically turn the drive shaft. This process will generate the electricity.