Britain used to rely almost exclusively on coal for its electricity generation, mining it in Wales and the north and central part of England, then bringing it, usually by train, to power stations where it could be burned to heat up water that would generate electricity. Then the water was cooled down in cooling towers that can still be seen in many parts of the country.

This year marks 500 years since the death of the Italian Renaissance artist Leonardo da Vinci in May 1519. Although he was born in the heart of Tuscany in Italy, Leonardo had a profound influence on art the world over. You can see evidence of this right here in London. Leonardo's image features in mosaics decorating the National Gallery and the Victoria & Albert Museum. We are also lucky to have several works in London by the great master. These display not only his creative genius but also his intellect and huge appetite for knowledge.