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Mental Floss: Big Questions: Season 1

1x32 Why are the numbers on calculators and phones opposite?

  • 2015-05-11T17:00:00Z on YouTube
  • 3m
  • United States
  • Documentary
This week, Alyssa Nitta asks, "Why are keypads on phones arranged in ascending order while keypads on calculators are the other way around?"
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