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Posts tagged with logarithms

1 = 3 What? Call the Math Doctor!

September24

Yes, you read about it here on H3! In Year 10 you learn the basic laws when working with logarithms. Do you remember what a logarithm is? If not, read more here from an earlier post. Then, take one of these laws (the log of a power) and you can prove, in about as many […]

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Tsunami Remembrance

March9

We are still in awe at the destructive tsunami that hit Japan a year ago. This composite picture gives some idea of the power of the earthquake and the tsunami that followed. Our hearts go out to our Japanese friends for all the sadness they endured and still endure today: This tsunami was triggered by […]

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How Logs Work – the easy way!

February27

In Year 9 I had a maths teacher who was really good at music and OK at maths. Anyway, we had a visiting “inspector” type of man one day who had come from overseas and came to see our maths class. The topic we had been working on was Logarithms (Logs) and we had been […]

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The Logarithmic Scale and Earthquakes

February25

The Richter scale is a standard scale used to compare earthquakes. It is a logarithmic scale, meaning that the numbers on the scale measure factors of 10. So, for example, an earthquake that measures 4.0 on the Richter scale is 10 times larger than one that measures 3.0. More info here. We often use logarithms in Mathematics as […]

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