• Why does multiplying two negatives give you a positive?

    Why does multiplying two negatives give you a positive?0

    I found myself in a difficult situation the other day:  explaining the multiplication of two negative numbers to my 8 year old. Negative numbers are rather simple to illustrate when using temperature because there is a clearly visible “zero” Celsius and numbers on either side of it.  Living in Canada, we can see dramatic fluctuations

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  • So much sand, so many uses

    So much sand, so many uses0

    Who knew sand could be so interesting? Typically, we tend to only care or think about sand when it’s beneath our feet as we’re relaxing on the beach soaking in the Sun’s rays. But, sand’s role in our lives expands far beyond our favorite beaches. Sand has served a much more practical purpose ever since our ancient

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  • A Solution to Fermi’s Paradox?

    A Solution to Fermi’s Paradox?1

    This article was written by Jim Walker at NoBeliefs.com.  It is reproduced with his permission.  We think you’ll enjoy his take on the Fermi Paradox, a subject we’ve covered a number of times. Fermi’s paradox comes from an argument made by the physicist Enrico Fermi and the astrophysicist Michael H. Hart. The paradox states that

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