equilateral-curve heptagon

As part of an ongoing series to recognise significant contributions to the sciences and humanities in UK coinage, the Royal Mint is issued a commem-orative fifty pence piece with a reverse honouring the late Professor Stephen Hawking, with the seven-sided coin depicting one of his most important formulations—aside that is from making astrophysics accessible and increasing general literacy and numeracy—that the conservation of information is not a constant and dissipates as does an aging black hole.