No source water
Principle: No source water faucet is a common faucet, it has no pipe pulling water in but the water runs down ceaselessly. In fact, the pump, which is installed under the basin, connects with the transparent pipe, through the knighthead above, the transparent pipe connects with an emulational faucet and the top of the transparent pipe is hided. The pump pulls water into the transparent pipe and pushes it runs out of the other end of the pipe. Because there are full of water both outside and inside the transparent pipe, so it seems as if the water is running out of the emulational faucet. The water that runs out of the top of the transparent pipe drops along the pipe into the basin, which is repeated over and over. Thus the visitors will take it for granted that the water runs ceaselessly, but where it is from remains as a riddle. With such a simple design, the exhibit produces a novelty.
Operation: the visitors observe without interference.