<Li> Li Si (208 BCE), Prime Minister during the Qin dynasty, was executed by the Five Pains method which some sources claim he had devised . However the history of the Five Pains is traced further back in time than Li Si . </Li> <Li> Wan Hu, a possibly - apocryphal 16th - century Chinese official, is said to have attempted to launch himself into outer space in a chair to which 47 rockets were attached . The rockets exploded, and it is said that neither he nor the chair were ever seen again . </Li> <Li> James Douglas, 4th Earl of Morton (1581) was executed in Edinburgh on the Scottish Maiden which he had introduced to Scotland as regent, though he was not the inventor of the device . </Li> <Li> Joseph - Ignace Guillotin (1738--1814) While he did not invent the guillotine, his name became an eponym for it . Rumors circulated that he died by the machine, but historical references show that he died of natural causes . </Li>

Who was the scientist lost their life as a consequence of their own discovery