Godin sketches four concentric circles, showing your full range of options.

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One face of the hill had been almost completely excavated, exposing four stone circles, each made up of a dozen or so pillars with two larger pillars in the middle.

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Again, in Europe, this is called Metop, and this four-tonne platform circles the globe, pole to pole, every 100 minutes.

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But even these four were known only in niche literary circles abroad, and were maintained on publishers' lists essentially as artifacts.

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The flight circles the sound, then floats back over much of the track, providing a recap of the four-day journey.

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