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by andblack on July 1st, 2009

andblack

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If the earth is supposedly 4.6 billion years old and human's have been around for a lot more than 6 thousand years than how come we are not so advanced? ( we invented car's, planes, cellphones, computers and many more in just 100 years)

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  • by Marky Mark on October 4th, 2009

    Marky Mark

    Certain key or break-through discoveries and inventions enable other discoveries and innovations. For example; The many different types of electrical appliances we have today had to "wait" for electricity to be harnessed. Likewise, cars and planes had to wait for the internal combustion engine to be invented.

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