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George Stephenson is known as the "Father of Railways".

Because of his pioneering work in developing the first public inter-city railway line in 1825.

It revolutionized transportation and transformed the way people and goods moved around the world.

He designed and built several iconic trains, including the famous "Rocket," which won the Rainhill Trials in 1829.

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Sir Anthony Patrick MacDonnell was the Lieutenant-Governor of the North-Western Provinces in 1895-1896.

He was a prominent British administrator in India known for his reforms in the provinces.

He particularly focusing on famine relief and public administration.

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Initially, the milkman has 10 liters of milk and adds 10 liters of water, making the total solution 20 liters (10 milk + 10 water).

The ratio of milk to water is 1:1, so the concentration of milk is 50% (10 liters milk / 20 liters total).

The son takes 15 liters of this solution, which contains 50% milk, so he takes 7.5 liters of milk (15 liters x 0.5) and 7.5 liters of water.

The son then adds 5 liters of water to the 15 liters he took, making the total solution 20 liters again (7.5 milk + 7.5 water + 5 water).

Now, the total water in the solution is 7.5 liters (initial water) + 5 liters (added water) = 12.5 liters.

So, the amount of water in the milk is 12.5 liters.

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A radiation dosimeter is a device that measures dose uptake of external ionizing radiation.

It is worn by the person being monitored when used as a personal dosimeter, and is a record of the radiation dose received.

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Ban Ki-moon is a South Korean politician 

He served as the eighth secretary-general of the United Nations between 2007 and 2016.

He was the South Korean Minister of Foreign Affairs and Trade between 2004 and 2006.

Born: 13 June 1944 (age 81) insei, Chūseihoku Province, Korea

Political party: Independent

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AutoCorrect helps to reduce spelling errors in a document by automatically correcting misspelled words as you type.

AutoCorrect is a software feature commonly found in word processing programs, such as Microsoft Word.

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