sentence_pair.en: In the attempt of 1896 , the wind immediately refuted his optimism by blowing steadily from the north , straight at the balloon hangar at Danes Island , until the expedition had to pack up , let the hydrogen out of the balloon , and go home .
sentence_pair.fr: Son optimisme fut tout de suite refroidi par un vent du Nord soufflant sur le hangar du ballon à Danskøya , si bien que l' expédition dut replier le ballon , laisser s' échapper l' hydrogène , et s' en retourner .