Google Logo - The First Hot Air Balloon Flight

In the 18th century, inspired by the sight of paper scraps continuously rising in a stove, the French paper-making Mongolfier brothers conducted experiments using paper bags to collect hot air, enabling the paper bags to rise continuously with the airflow. On June 4, 1783, the Mongolfier brothers gave a public performance in Lyon's Anneau Square, where a simulated balloon with a circumference of 110 feet ascended and flew gracefully for 1.5 miles. This was the first ever hot air balloon flight in history. Today, Google unveiled a commemorative logo on its homepage marking the anniversary of the first hot air balloon flight. The logo features a blue background, with a hot air balloon replacing the letter "O" in the middle.