explanation

Thermodynamics is unfair

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Cooling is hard

Why did air conditioning appear so long after fire?

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Photography: the hard part

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Keeping track

It’s still the same task, digital or film.  And it is still not done well, sometimes at all, by most photographers.

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A cup of suns

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The fixed stars, part III

Seeing the forest instead of the trees

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Saving the phenomena

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Fixed stars, part II

The Middle Ages were a hotbed of astronomical controversy in Europe.

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A near miss

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Fixed stars, part I

A star is coming very close to the Sun very soon, as distance and time go in astronomy.

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The discard pile

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It didn’t work out

What is the use of scientific theories that aren’t right?

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Consider construction

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The persistence of the mundane

We ponder some unexciting work.

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The post-fire generation

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Needed no longer

The recent and rapid demise of the open flame.

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Transistors, candles and light bulbs

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Simple or complicated

Which would you rather explain?

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Running the race

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Man and animal

Why run on foot from Mount Vernon to Alexandria?

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