An artificial tongue that learns different flavors

An artificial tongue that learns different flavors

While machines have mastered both sight and sound, the sense of taste has proved harder to digitize. We've seen the creation of highly specialized artificial tongues targeting sweetness, chocolate, beer, wine or whisky, but now researchers in Beijing have developed a more generalist graphene oxide “tongue” that doesn’t just detect chemicals, it learns them. During laboratory tests, the system identified sour, salty, bitter, and sweet with nearly…