Through the 18th century, people were being inflating balloons of fabric or canvas with sizzling air and sending it aloft, the Montgolfier brothers going as far as to experiment with very first animals in 1782, and then, when altitude didn't eliminate them, human beings in 1783. ↑ odnosi się do https://ballon-arch21986.salesmanwiki.com/9801100/getting_my_ballon_arch_to_work