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Hourglass is a child's science toys,using conductive ink combine hourglass,increased interest in different shapes,can use the light at night to Illuminate the darkness,the use of electric wire connecting the conductive ink make lights shine,use flip to make the light shine again.
Southern Taiwan University
of Science and Technology
Tainan, Taiwan
Southern Taiwan University
of Science and Technology
Tainan, Taiwan
Yu Yan Shiu
Yi Kuan Lai
Chi Shian Huang
Yi Ju Lai