Who was Marco Polo ?

The Italian traveler , explorer and writer . He was born in Venice( 1254 ) and died in (1324) , who was the first European to visit China . He also journeyed to India , and other countries of the far East and published records of his travels . He travelled through Asia along the silk road between (1271-1295) . Marco Polo travelled first when he was 17 , he travelled through silk road with his uncle and father as they reached China , Marco entered the court of powerful Mongol ruler Kublai Khan (Grand son of Changez Khan) , Marco Polo’s father asked Kublai Kahn for opening of the routes for trading between China and Europe but Kublai khan did not trust him , So that Marco was given as slave to Kublai khan by his father , but the interesting thing is that Marco‘s father was actually working for the Pope and he was also thief of silk worm .

Kublai khan was the first khan to accept all the foreigners and founder of the Yuan Dynasty . He was also first Mongol to rule over china . Kublai khan saw the wisdom of Marco Polo. So he announced Marco as advisor and also dispatched him on many trips to help administer the realm . Marco helped Kublai khan in many ways in which he helped khan to bring to an end the song dynasty of China and captured the great city , and also defeated the Pope . Marco polo also came in help to secure khanate of Kublai khan in Kurrultai (Political and military council) . Marco Polo remaind abroad for 24 years .

Famous Books – The Book of Wonders : Travels : Silk Road : Travels in the land of Kublai khan

What is vector group of transformer?

Vector Group of Transformers • A vector group is the International Electrotechnical Commission (IEC) method of categorizing the high voltage (HV) windings and low voltage (LV) winding configurations of three-phase transformers. • Vector group is a connection of primary winding , secondary winding and an electrical angle difference . • The vector group designation indicates the windings configurations and the difference in phase angle between them. The three phase transformer windings can be connected several ways. Based on the windings’ connection, the vector group of the transformer is determined. • The transformer vector group is indicated on the Name Plate of transformer by the manufacturer. The vector group indicates ...

Eclipses

What is Eclipse? . When the light of the sun or the moon is obscured by another body the sun or moon is said to be in eclipse . Lunar Eclipse . When the earth comes between the sun , the shadow cast by the earth on the moon results in a lunar eclipse . Lunar eclipse occurs only on a full moon day but not on every full moon day . Solar Eclipse . When the moon comes between the sun and the earth , it causes obstruction of the sun's light when viewed from earth , and is called solar eclipse . A solar eclipse occurs on a new moon day when the moon is in line with the sun . However , solar eclipse does not occur on every new moon day .

Moen-jo-Daro

Moen-jo-Daro is one of the oldest cities of world . It's ruins are about 4500 years old. Moen-jo-Daro is situated on the right bank of river indus and about 27 kilometers far from Larkana . It was discovered in 1922 by an English archaelogist Sir John Marshal. Once it was a large busy city . The city was well planned and clean . The houses were made of backed bricks . Each house had a bath room and sevaint quarters close by . There were covered drains beside the streets . Streets were made of backed bricks . There was straight road in the middle of city having shops on both sides . There was a public pond and a big storing hall also . There is a great bath built in city which is well known structure in Moen-jo-Daro of the ancient civilization in Sindh. The people were good cultivators and craftsmen . They grew wheat , rice , cotton etc . They also kept cattle . Craftsmen were very skilled . They wo...

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