Others theorize that the early universe broke first into colossal clumps that contained enough building materials to make structures on the grandest scale — great walls and sheets of millions of galaxies — that fragmented into
increasingly smaller gas and clouds, ultimately resulting in individual galaxies.
In the UK, electricity is generated largely by coal and
gas — around 40 per cent and 30 per cent respectively — followed by around 15 per cent nuclear and other sources in
increasingly small percentages.