20 inventor and its invention
Answers
Answer:
(1)Benjamin Franklin ---lightning rod, glass harmonica
(2)Thomas Alva Edison -------light bulb and the phonograph
(3)Alexander Graham Bell -----telephone.
(4)Nikola Tesla ------alternating current electricity supply system
(5)The Wright Brothers ------ motor-operated airplane.
(6)Guglielmo Marconi ----radio
(7)Robert Fulton ------steamboat
(8)Samuel Finley Breese Morse ----telegraph
(9)Eli Whitney -----cotton gin
(10)Philo Taylor Farnsworth ------- television
(11)Margaret E. Knight ------ paper bags
(12)Elijah McCoy ------- automatic lubricator
(13)William Kamkwamba ---- electricity-producing windmill
(14)Henry Ford ----- Ford brand(model T )
(15)Howard Hughes ------- Aircraft
(16)John Harrison ------- marine chronometer
(17)James Watt -----Watt steam engine
(18)Steve Wozniak---- Apple I computer
(19)Lewis Howard Latimer ------- patenting of the light bulb and the telephone.
(20)George Washington Carver --------300 products made from peanuts
Explanation:
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Answer:
Indus is a large river in Eastern Pakistan,near the border of India.The Indus valley civilisation flourished from 4th to the middle of the 2nd century BC in the valleys of this river and its tributaries. It was one of the earliest and the biggest civilisation of the world. Archaeologists found its remains in 1922. First a small part over thousand colonies was excavated. It was the centre of trade and business. Products were sent to Sumer in Mesopotamia. There were no magnificent buildings or temples, but a planned layout, right angled streets with living quarters, and a system for drinking and waste water were some of the things discovered here. It is not known why the Civilisation perished by around 1700 BC.
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