How does one control the movement of hot air balloons?
Hot air balloons rise into the sky because of the
fundamental property of the hot air filled in them; air when heated becomes
lighter (less denser) than the surrounding cold air. The balloon does not have
controls such as accelerator, steering or brake.It is driven by breeze and so
there is no control over the flight path. Ascending is by heating the air with
the help of burners suspended beneath it. As a result, the balloon rises to
find its equilibrium with the surrounding air. Descending is by releasing the
hot air from the balloon. Hot air balloon enthusiasts venture out after
studying the weather and making sure there are no strong winds.
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