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People use their touch sense to feel the world. Sometimes people can use their memory of touch sense to recognize a lot of things .
The seasoning jar always has a label on it to tell us what is seasoning in the jar. Why not just using our memory of touch sense to feel what it is.
The surfaces of Hand Feeling Seasoning Jars have different textures. One is similar to salt (soft) and the other one is similar to pepper (rough). People can recognize the difference jars between salt and pepper by texture on the surfaces.
Jhe-Min, Lin Cheng-Chia, Huang Rong-Dian, Jhong