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The invention of the mechanical clock initiated a change in timekeeping methods from continuous processes, such as the motion of the gnomon's shadow on a sundial or the flow of liquid in a water

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from then until the operation of this object has not changed much only you have added details that have improved their use.

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With the advances in technology and electronics, car manufacturers have been able to offer a wide variety of services and conveniences that many new automobile owners appreciate.

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the old ratio was with different shape

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The first televisions that can be considered commercial were of mechanical type and were based on a rotating disc,

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The first televisions that can be considered commercial were of mechanical type and were based on a rotating disc,

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the oldest tv's were with different shapes and color.

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the old camera was  called obscura it could only make projections, not take photos.

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Early cell phones were just for talking.  We now use our cell phones more for surfing the web, checking email, snapping photos, and updating our social media status than actually placing calls.

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Technological evolution is an innovation an technology related  theory that describes the radical transformation of society through technological development