Alexander von Humboldt was a naturalist and explorer whose books about his travels won legions of admirers, among them the young Charles Darwin. Andrea Wulf, who wrote the biography The Invention ...

He reads and rereads Alexander von Humboldt's inspiring account of his ... A crew of more than 60 men will squeeze into a ship 90 feet long and 24 feet wide. Charles will share a 10-by-11-foot ...