How To Recharge An MTN card
Below, i will be teaching you how to recharge your MTN card.
STEP 1
1. Dial *311*
2. Enter the recharge card digits
3. Press # , and enter
The Book of Invention: The Jet Aircraft
In 1939, World War Two began in Europe. This war would last for almost five years. In Germany, Hans von Ohain designed and installed a completely new type of engine in an aircraft, an engine which would enable the aircraft to fly at a truly high speed. This was the first jet engine, pushed forward by air which was first sucked up and compressed, and the exhaust gases expelled at great pressure. Two years later, quite independently of von Ohain, an English engineer, Frank Whittle achieved the same results. But the first people to install the new motor in an aircraft were the Germans. Their Messerschmitt Me 262 , used during the last stages of the Second World War, gave the best performance. By the end of the War, jet engines had begun to be used in passenger aircraft, too. Now, people could fly at higher speeds and so complete their journeys within an unbelievably short time. Passengers tr...
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