"What we have found is certain weeks during the year there'll be a hundred bats in here, and then suddenly they will disappear," says Parker.
Вячеслав Агапов
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Detecting e-bike battery fires, for example, is particularly difficult, since these can unfold suddenly. Some researchers are working on new ways of sensing smoke and fire, perhaps even more quickly than before. But, take note: any certified, working smoke alarm is better than nothing.
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