Which passage from the article best supports the idea that there were setbacks and problems during the development of the hot air balloon?
Two months later, Étienne permitted the first balloon flight with humans on board…. The balloon landed safely, and the age of travel by hot air balloon began!
He'd watched his wet shirt billowing upward and wondered: Could fire lift something heavier into the air, something like…a person?
The credit goes to brothers Étienne and Joseph Montgolfier, papermakers who lived in southern France during the late 1700s.
As Étienne frantically pulled the balloon down, it flopped into the fire. He was left with a scorched and soggy mess that would never impress the king.