Convector heaters, hot air balloons, and sea breezes are all described in this week's programme when Gerd Sommerhoff explains the simple scientific principle on which they all depend.
(to 10.25)
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Convector heaters, hot air balloons, and sea breezes are all described in this week's programme when Gerd Sommerhoff explains the simple scientific principle on which they all depend.
(to 10.25)