Accordion, trumpet, violins and keyboard created a euphoric Arcade Fire-party atmosphere, while fans of The Guillemots would also be taken under their spell.

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It also goes further than ever before to model the ways in which the atmosphere is affected by a fire's heat.

ECONOMIST: Next, the fire forecast

In other words, does he want them to hold their fire in the interests of creating this atmosphere that he talked about yesterday?

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Fire forecasters do the same, but as well as simulating the goings-on in the atmosphere, they also add a second numerical model to simulate the fire on the ground.

ECONOMIST: Next, the fire forecast

Far from being a spark plug for crowd trouble, I believe anthems, whether booed or sung with lung-busting gusto, add to the atmosphere of the game and put fire in players' bellies.

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This flies so low to make its maps that it must continually fire its ion engine to counteract the wisps of atmosphere still present at an altitude of 260km.

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Before the game, a carnival atmosphere prevailed at the famous old Belfast venue, with stiltwalkers, fire-eaters and jugglers greeting spectators as they filed through the turnstiles.

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"You wake up in the morning at about 5 o'clock ... and then you watch the sun rise and this extremely peaceful and serene atmosphere and then you just look at the sun coming like a ball of fire, rising from the sand and then coming up, " recalls Jibunoh.

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