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Archive for June, 2014

The Magic of Numbers

June13

It is not known who created this magic square, but it is shown in Durer’s famous 1514 engraving, known as Melancholia. What is quite remarkable about this square is that: 1. All the rows, columns and the two diagonals add up to the same number, just like ordinary magic squares. In this case the number […]

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How did a 6th Grade Math Teacher become a top golf caddy?

June11

Yes, dear mathematicians, there is a game that resembles math – not just because it involves numbers, but also because it takes a certain mental attitude that can only be developed in the math classroom. So, how did teaching math to sixth-graders in Puget Sound lead to being the caddie for the No. 10 player […]

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How many mathematicians to change a light bulb?

June9

Check the post support for the answer!

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A math professor’s words on life’s conundrums

June9
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Measuring to the nth degree…

June3

Researchers in Australia have developed the world’s most sensitive thermometer—and it measures temperature with a precision of 30 billionths of a degree using the properties of a circle! Read the article here.

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FemMath – where fewer run away!

June3

Recent research has shown than people are slightly less likely to flee an oncoming storm with a feminine name than a masculine one. Researchers found that hurricanes with feminine names turn out to be deadlier than their more macho-sounding counterparts, possibly because the feminine names sound less dangerous. For example, the two deadliest storms to […]

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Post Support

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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