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The lateen rig

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A misunderstood sail

We consider a number of mistakes connected with a particular piece of old technology.

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A simpler theory (II)

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Writing down the equation

We notice how mathematical notation affects scientific progress.

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Liquids in space?

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Chemical calculations

An offhand comment led to a set of hybrid calculations.

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Take note

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From the archives

Our consultants review some old writings.

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The march of historians

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History ain’t changed?

Insights from an old history book.

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Touching history

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A human chain

We find that long ago may not be so long ago.

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The infinite answer

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Terms of the series

We emphasize, again, two different kinds of mathematics.

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Historical fiction (I)

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Getting old things right

We note some similarities between genres: SF and HF.

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A testing time

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Without tests

Students will learn something with their schools closed, though it may be unwelcome.

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The synthesis project

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Ways of being intelligent

We present an idea that won’t work.

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