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Posts tagged with indices

What do these faces have in common?

February20

A wide variety of faces, yet they all have something in common. What do you think it is? Answer: They are all fake images! How? See this intriguing video which uses an amazing new mathematical facial formula (algorithm). Click on the image to view (approx 6min):

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The Real Math Behind ‘The Simpsons’

February5

So, in relation to my last post, here is a puzzle that appeared in a Simpsons Episode – centered on baseball. Can you figure out the attendance at this game? For a complete explanation, check out this 12min video here.

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Geometric Squaring for accuracy…

February25

Spot the error in this student’s working: You spotted it? Yes, it is obvious that this student has forgotten to do the last problem correctly and worked out 7 x 2 when they should have done 7 x 7 (source here). Perhaps it is better to think of “Squared Numbers” as geometric squares. After all, […]

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Powers of 10 to estimate large numbers

May11

Have you ever tried to guess a mindbender like: “How many piano tuners are there in Chicago?” Physicist Enrico Fermi was very good at problems like these — learn how he used the power of 10 to make amazingly fast estimations of big numbers in this short video (from TED-Ed).

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