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Originally Posted by Mohoender
You are right about the fine line. That's why I said pure invention no improvements or applications.
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There is a problem with the concept of "pure invention". IC engines can be traced back to the Greek steam engines.
Personally I think cell phones are a revolutionary advance which happens to be bolted onto an older technology (telephone system) and using another older technology (radio waves). But look at how it revolutionized communications in Africa and eased communications in areas of Europe where stringing wire was difficult.
My suggestions would include
Cell Phone
RFID tags
CAT/MRI scanning equipment
Internet
Digital Data Storage
GPS
Buckytubes
Of course someone could say GPS is just an improvement over the compass, sextant and clock. While digital data storage is only an advanced form of punch cards. When you increase the ease of use of something by a factor of over one million it really should be considered a revolutionary advance IMO.
And there is a reason why 60 years was picked. World War II accelerated development in some areas by 30 years IMO, leading to a bit of a skew in a chart of humanity's development of technology.