Hark! The Herald Angels Sing

Just a few hotels in the world are known to almost everyone – Raffles in Singapore, Reid’s Palace in Madeira, The Dorchester in London, Waldorf Astoria in New York spring easily to mind. Add to [more…]

Or : Multiplying by . The beginning of complex numbers is often attributed to Cardano (1501 – 1576).  Complex numbers provide a solution to the equation . They are an extension of the number system [more…]

The words of the carol occur in three broadsides published in Birmingham in the early nineteenth century. An early mention of the carol’s title occurs in William Hone’s 1823 work Ancient Mysteries Described, which includes [more…]