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janssen microscope
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gallileo telescope
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watt steam engine
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volta , electricity
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electric generator
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dinamite nobel
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x-rey roentgen
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first flight ,wrigth brothers
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ford
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the television
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nuclear reactor
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the first microwave
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laser
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mobile phone
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personal computer
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windows operating system
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CDs and flash memory
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launch of the Hubble space telescope
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bluetooth standar ericsson
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DVD
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hybrid vehicles
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optical mouse
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WI-FI networks
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blu ray standard
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supercomputer
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new horizons spacecraft reaches pluto
