sweetpea86 writes: Visitors to graveyards in the UK may soon be able to learn much more about the people buried there, with the introduction of quick response (QR) codes on headstones. Chester Pearce in Poole is the first funeral director to offer families the option of interactive gravestones with embedded QR codes. The £300 QR codes are etched on to small granite or metal squares before being embedded or glued on to the gravestones. When scanned using a smartphone or tablet, the code launches a personalised web page dedicated to the deceased, complete with pictures, videos and contributions from family and friends.
Thus mathematics may be defined as the subject in which we never know
what we are talking about, nor whether what we are saying is true.
-- Bertrand Russell