TIL that in 1896, a Swedish explorer named Salomon August Andrée attempted to reach the North Pole by hydrogen balloon. The expedition disappeared into the Arctic and was only discovered 33 years later.
#8 当前排名Reddit · todayilearned 9月9日 UTC 12:00
平台热度3625原始平台指标
AI 摘要
Swedish balloon expedition to North Pole vanished in 1896, found 33 years later.