Japanese scientists have developed a sophisticated electronic nose that is capable of sniffing an object then reproducing the smell. One of the most ambitious devices Professor Takamichi Nakamoto's team has built is a sophisticated "odour recorder" which can sniff an object and then reproduce its smell using a host of chemicals.If you present the recorder with a shiny red apple, the electronic nose will take a cursory sniff, analyse the odour and then draw up a recipe of chemicals needed to recreate it.
via BBC News Science and technology
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