explanation

The danger of mathematics

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Ask a simple question

We wind up unexpectedly far from home.

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Dealing with data (II)

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The Law of Propagation of Bad Data

You need to go back to the source.

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Dealing with data (I)

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Making the cut

We have too much information to deal with.  What do scientists do?

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Celestial navigation

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Knowing where you are

You can get turn-by-turn directions.  What more do you need?

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The best learning

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The best teaching?

Our tutor ponders methods and results.

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Proof and re-proof

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Testing the theory again

General Relativity passes another test of its predictions.  Why bother?

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Making mistakes

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Is punishing mistakes a mistake?

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Libraries and long walks

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An unnecessary problem

Scientists sometimes set themselves problems just to learn.

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Alternate methods

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The answer or the process?

When there’s more than one way to get there, you have to choose.  This can be confusing or useful.

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A village in space

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Interstellar genetics

A recent paper contemplates a very long voyage.

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