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In 1854, Sir Charles Wheatstone invented the cipher known as "Playfair," named for his friend Lyon Playfair, first Baron Playfair of St. Andrews, who popularized and promoted the cipher.

The next Acoustic Night happens to fall on Thursday, February 6, which is the anniversary of the birth of Sir Charles ...

Michael Mosley, Cassie Newland and Mark Miodownik describe the scientific achievements of Hans Christian Oersted, William Cook and Charles Wheatstone. Prior to their inventions all communication ...