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The Receptacle is electricity-controllable.
When it is positive shape +, the electricity is on. When it is negative shape -, the electricity is off.
People think the positive sign to add and the negative sign to subtract. If people turn the receptacle anticlockwise, it becomes the positive shape and serves the electricity. If people turn it back, it is the negative shape and doesnt serve the electricity.
sadi(samsung art and design institute)
Seoul, South Korea
rich park
sadi(samsung art and design institute)
Seoul, South Korea
