Identify the source of energy from the clues given
a. It is the most abundant, infinite source of energy, which is actually the source for all types
of energy found on the earth’s surface
b. It was used for grinding pulses and pumping water in ancient times.
c. It is collected through pipelines and can be used for cooking, heating and generating
electricity.
Answers
Answer:
The first known wind device was described by Hero of Alexandria (c. 1st century CE). It was modeled on a water-driven paddle wheel and was used to drive a piston pump that forced air through a wind organ to produce sound. The earliest known references to wind-driven grain mills, found in Arabic writings of the 9th century, refer to a Persian millwright of 644 CE, although windmills may actually have been used earlier. These mills, erected near what is now the Iran–Afghanistan border, had a vertical shaft with paddlelike sails radiating outward and were located in a building with diametrically opposed openings for the inlet and outlet of the wind. Each mill drove a single set of stones without gearing. The first mills were built with the millstones above the sails, patterned after the early waterwheels from which they were derived. Similar mills were known in China by the 13th century.
Windmills with vertical sails on horizontal shafts reached Europe through contact with the Arabs. Adopting the ideas from contemporary waterwheels, builders began to use fabric-covered, wood-framed sails located above the millstone, instead of a waterwheel below, to drive the grindstone through a set of gears. The whole mill with all its machinery was supported on a fixed post so that it could be rotated and faced into the wind. The millworks were initially covered by a boxlike wooden frame structure and later often by a “round-house,” which also provided storage. A brake wheel on the shaft allowed the mill to be stopped by a rim brake. A heavy lever then had to be raised to release the brake, an early example of a fail-safe device. Mills of this sort first appeared in France in 1180, in areas of Syria under the control of the crusaders in 1190, and in England in 1191. The earliest known illustration is from the Windmill Psalter made in Canterbury, England, in the second half of the 13th century.
ANSWER :
a. SUN
b. SCREW PUMP
c. NATURAL GAS