Across millions of miles of space, light and heat from the Sun reach the Earth. Gerd Sommerhoff describes some of the similarities between light and heat and explains their importance to life on Earth.
(to 11.55)
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Across millions of miles of space, light and heat from the Sun reach the Earth. Gerd Sommerhoff describes some of the similarities between light and heat and explains their importance to life on Earth.
(to 11.55)
