Ever since man invented the wheel he has been<br >confused victim of the miracles he has wrought.<br >cultivated the land and produced food in abunda<br >He harnessed the invisible wind with sails and<br >tured the power of tumbling rapids. He converted<br >heat of combustion into steam to produce power.<br >illuminated his world with electricity and advaI<br >into the eomplexities of electronic communication，<br >dear fission， computers， and laser beams. He trav，<br >into space and walked on the moon.<br ><br >
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