Saturday, 21 March 2015

Invention Of Wheel

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Before the wheel was made, people walked to reach places.They had to carry their things on their shoulders.Sometimes they  used animals to carry things.Later on, they made sledges which were pulled both by man and animals.They also made rafts that moved on water.

  While moving in the jungles, early humans noticed that round objects such as logs of wood rolled down slopes easily.So they fixed logs under their sledges, and found it was a little easier to carry them.

  Then they tied the slices of wood to the sledge.Now the task of pulling things was easier for them.These slices of wood were the first wheels made by man
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