Convector heaters and air balloons feature in this programme when Gerd Sommerhoff explains the simple scientific principle on which they both depend.
For Schools
First shown in November 1961
(to 10.22)
Discover 11,128,835 listings and 282,062 playable programmes from the BBC
Convector heaters and air balloons feature in this programme when Gerd Sommerhoff explains the simple scientific principle on which they both depend.
For Schools
First shown in November 1961
(to 10.22)