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what actually goes down on the international space station
explains
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quora
republished
space
技术
科学
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how close are we to a real iron man suit?
鋼鐵人
army
explains
hypotheticals
military
quora
republished
superheros
技术
源
the origin of the candy cane
圣诞节
candy
candy canes
explains
origins
republished
today i found out
技术
源
our best explainers of 2013
best of 2013
explainers
explains
giz explains
the year in review
技术
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the history of the weird keyboard symbols you never knew you needed
explains
gizexplains
keyboards
symbols
技术
源
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