By the 18th century, persons have been inflating balloons of cloth or canvas with hot air and sending it aloft, the Montgolfier brothers likely so far as to experiment with first animals in 1782, and then, when altitude didn't eliminate them, human beings in 1783. 9070XT：性能基本持平5070Ti，但是价格要便宜不少，能抢到原价的可以直接冲，非公高端型号贵几百块但是可以原价直接买到，性价比也... https://simonvciou.wikiparticularization.com/1683684/facts_about_ballon_arch_revealed