Just as suddenly the air deadened, and at one point during the night the wind meter read zero.
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There is already a wind speed meter on the spire which relays information to the cathedral floor where it is checked by members of staff and is a point of interest to visitors.
BBC: Salisbury Cathedral spire to get digital anemometer
Bolt ran his 19.3 against a 0.9-meter-per-second wind.
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British wind power company B9 recently tested a model of its planned 100-meter, 3, 000-ton carbon-neutral freighter.
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"You could put wind turbines on these shelves and within a few hundred meters, or kilometers you could be in 600-meter-deep water, " he said.
CNN: Where to store wind-powered energy? Under water!
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