As Tim Radford, former science editor of The Guardian newspaper, noted in his 2011 book The Address Book, inquisitive schoolchildren the world over have a certain ritual. Handed a new exercise book and asked to add their name and address, they do so on a Universal scale. House number, street, town and country, postcode even, are followed by their designated continent and the name of our planet. Up the cosmic scale they go, noting the Solar System then the Milky Way, before offering the final identifier: the Universe.
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