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The digits of 1/2 (base 2.5)

Posted by: Gary Ernest Davis on: April 27, 2010

The unusual title for this post comes from a tweet from my Twitter colleague Peter Flom. Peter tweeted that he was thinking about writing numbers in base 2.5 I recalled that some years ago when I was teaching a graduate mathematics education class at Rutgers, we looked at an algorithm for generating the expansion of […]

How long does it take to count to one trillion?

Posted by: Gary Ernest Davis on: February 16, 2010

MyFox Houston quotes University of Houston professor Jim Granato as saying that it would take someone more than 31,000 years to count to one trillion. Where does this estimate come from? Recall that a trillion is a thousand billion, and a billion is a thousand million. There are  31,536,000 seconds in a 365 day year, […]