Thanks to the many advances in physics and other sciences, hot air balloons are not only safer, but more efficient.
Nowadays most are made of very tough nylon-like material.
There are traditional hot air balloons, special-shaped hot air balloons (such as animals, objects, or characters), and solar-powered hot air balloons that use solar energy to heat the air inside.
Hot air balloons have evolved over time due to advancements in technology and materials. These changes have improved safety, efficiency, and performance of hot air balloons. Additionally, new innovations have allowed for custom designs and shapes, providing more options for users.
Hot air balloons float because hot air displaces cool air in the atmosphere
air balloons or hot air balloons fly because they fill with a very light type of air. The air is hot air.
This may not help, but I didn't think it had ANYTHING to do with hot-air balloons...
People think that hot air balloons where made for battles.
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hot air rises
Hot-air balloons can rise up into the air because hot air is lighter, allowing it to float up into the sky.
Hot Air
Hot air balloons do not use helium; they are typically filled with hot air. Helium is non-flammable and more commonly used in other types of balloons like weather balloons or party balloons. The hot air inside a hot air balloon is what allows it to rise and float.