Hot air balloons played a big part in the American CIvil War. It gave an advantage to see above the trees and see an enemy before they could surprise attack...
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
Because the fire or heating device heats the air in the top section ( the actual balloon ) and hot air rises... so the hot air trapped in the balloon makes the balloon rise :)
to make a hot air balloon rise you use hot air
a hot air balloon virtually weighs negative lbs but it would depend on how hot the air is in the balloon.
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
The first air spying was done in a hot air balloon during the civil war. So, in this may affected the outcomes of some battles or troop movements.
hot air balloons work the best in cold temperature. the reason why is because if the outside temperature is close to the temperature in the hot air balloon, it will be as if the flame isn't on. if it is cold outside, the flame makes a much bigger impact and the balloon will go up faster.
D: The hot air inside the balloon becomes less dense than the air outside the balloon.
The hot air inside the balloon expands, making the hot air balloon fly.
The hot air balloon was made for people to travel in the air.
The first hot air balloon as we know it was made in France by the brothers Montgolfier in about 1750. It is said that hundreds of years earlier, people in South America made toy hot air balloons.
A hot air balloon is called an hot air balloon because, the inside is heated up to make it less dense, allowing it to rise. Meaning, your heating up the air inside the balloon, hence, the name: Hot air balloon.