> (I am fairly certain that an invention of e.g. a tin can opener did not have any noticeably political effects). The tin can certainly did though! "Can opener

> (I am fairly certain that an invention of e.g. a tin can opener did not have any noticeably political effects). The tin can certainly did though! "Can openers" are particularly distinct refinement of the cutting tool for a specific application, but not any kind of new technology.