The simple physics of flight that hasn't changed since 1783

This Is How Hot Air Balloons Work | From Ice To Fire: The Science of Temperature | BBC Earth Science · 4:05 · Video: BBC Earth Science · Watch at the source

In short: While modern technology has advanced, the fundamental science behind hot air balloons remains remarkably consistent. This video explores the principles of temperature and physics that allow these vessels to rise.

The mechanics of hot air balloons rely on basic principles of temperature and physics that have remained largely unchanged since the first balloon was invented in 1783. By heating the air inside a balloon, the gas expands, becoming less dense than the cooler surrounding air.

The video draws on insights from Dr. Helen Czerski's work, which examines the extremes of the temperature scale. It explores how everyday laws of physics can break down at these extremes, opening up a world of scientific possibility while grounding the viewer in the core science of buoyancy.

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