A"Winebot,"orarobotthatcantaste,firesoffabeamofinfraredlight(紅外線)fromitsleftarmtoabottleofShiraz,andtellthekindofwineduringademonstrationatalaboratoryinTsu,centralJapan.Someofthelightisabsorbedandthelightthatreturnsisthenanalyzedinrealtime(即時)todeterminetheobject'schemicalcontent.