Education- Interesting facts 15 August 2021

🤔 How it works …….. ⁉

HOW RUBBER IS MADE?

Natural rubber is made by extracting a liquid sap, called latex, from certain types of tree. There are over 2,500 types of tree that produce this sap, but the overwhelming majority of latex for rubber production stems from the Hevea brasiliensis tree,

Latex is gathered from the trees by making a cut in the bark and collecting the runny sap in cups. This process is called tapping.

In order to prevent the sap from solidifying, ammonia is added. Acid is then added to the mix to extract the rubber, in a process called coagulation. This can take about 12 hours.

The mixture is then passed through rollers to remove excess water. Once this is complete, the layers of rubber are hung over racks in smokehouses or are left to air dry. Several days later they will then be folded into bales ready for processing.

Firstly, chemicals are added to the rubber to make it stable. Without this, the rubber would get brittle if it got cold or become sticky during high temperatures.
Commonly, a carbon black filler is added to the rubber mix, to improve its strength and durability.
The rubber is then carefully mixed together and allowed to cool, before being shaped. It can be shaped by pushing it into rollers, called calendering, or by squeezing it through holes to make hollow tubes, known as extrusion. In 18th century rubber making was introduced.

😳Why❓❓❓

WHY INDIA CHOOSE 15 AUGUST AS DATE OF INDEPENDENCE DAY?

British PM Clement Atlee on February 20, 1947, announced that the British rule in India would end by June 30, 1948, which would result in powers being transferred to a responsible Indian. This declaration was trailed by the Muslim League’s agitation and demanded the partition of the country..

On July 5, 1947, the British Parliament passed the Indian Independence Act. It accommodated two territories states: India and Pakistan The head of the state was retained by the King of Britain until the full transition to Republic state.

Mountbatten was the reason behind choosing August 15. Because it was the second anniversary of Japan’s surrender,” during World War Second. As quoted in Freedom at Midnight. Thus, this day was of symbolic significance for the Britishers.

India is not the only country that celebrates Independence Day on August 15, there are other nations that also mark the date as a ‘national day’. Bahrain, North Korea, South Korea, and Liechtenstein. which also experienced British colonial rule, declared its independence on August 15.

💁🏻‍♂️ GK TODAY

National game – Hockey

National flower – Lotus

National animal – Tiger

National tree – Baniyan

National anthem – Jana gana mana adhinayaka…… (written by Rabindranath Tagore)

National song ; Vandhe Matharum ………(written by Bunkim chand Chatterjee}

BORN TODAY
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SRI AUROBINDO
Date of Birth: (15-Aug-1872 to 05-Dec-1950)

Indian nationalist, freedom fighter, philosopher, yogi, guru poet, civil servant, translator, revolutionary, literary critic, philosopher, essayist & linguist