A modern day hot-air balloon is a huge bag filled with heated air or a
light gas that floats and rises into air. Hot-air balloons are mainly
used for sporting events and sometimes used in races, rallies, and just
for fun. The balloon is attached to a basket that can carry passengers,
equipment, and supplies.
The hot-air balloon floats and rises, because the air inside the balloon expands when it is heated, therefore, it makes the balloon lighter, letting it float and rise in the air. The air is heated by a burner, run by propane which is inexpensive and safe. The burner makes flames that reach up into the balloon, while heating it.
The best time to fly a hot-air balloon is at dusk or dawn.
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