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Mir Najabat Ali

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The Telegraph

In 1833 John Herschel, a British astronomer, went to South Africa to study the southern skies. He took with him a powerful telescope and many other instruments. He wanted to make charts and maps of the sky which people in the northern half of the world never saw. John Herschel planned to stay at the Cape of Good Hope...

The Wheel

The wheel is perhaps man’s greatest invention. Simple as it seems, it is the very basis of movement. The cart, the cycle, the motor-car and the railway train move on wheels. Even aircraft which fly thousands of kilometres through the air need wheels for taking-off and landing. It is not only for transport that the wheel is vital. Machines...

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