0:56
Нийтлэгдсэн 20 10 сарын 2015
How the Sun works
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продолжительность: 0:56
опубликовано 20 10 сарын 2015
Тайлбар
Did you know that had the Sun been fuelled by petrol or, say, wood, it would have burnt out in a matter of several millennia? So how come it's still burning?..
Судлах хэрэгтэй үгнүүдийг зөвлөж байна
a fusion - fusion