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When you have a drink or soup at fast food shop, you may experience to dredge up precipitate with a straw or spoon by two hands. Do you think it will save more time if it can be done by one-hand operation?
Tornado mug is a kind of easy-to-use cup. It can be operated by single hand strength of circle of rotation, precipitates on the bottom of cup will be rolled up easily and no need to use another hand to help with handling. Besides, such thoughtful design is also comfortable to the handicapped ped for single-hand operation.
National Yunlin University of Science and Technology