The sun radiates heat across 93 million miles of space to warm the earth. Today Gerd Sommerhoff describes something of the behaviour of these heat rays.
For Schools
Previously shown in November 1964
Repeated on Wednesday at 11.38 a.m.
(to 10.20)
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The sun radiates heat across 93 million miles of space to warm the earth. Today Gerd Sommerhoff describes something of the behaviour of these heat rays.
For Schools
Previously shown in November 1964
Repeated on Wednesday at 11.38 a.m.
(to 10.20)