A Wirtz Pump is a hollow spiral, mounted vertically. It is arranged such that one end dips below water once per revolution, while the other end (at the center of the spiral) is connected to a vertical tube. When rotated, it can be used to pump water to a great height. Explain this phenomenon and investigate how relevant parameters affect the pumping height.

• 可參考概念近似題目：2018 IYPT的 Heron’s Fountain（Construct a Heron’s fountain and explain how it works. Investigate how the relevant parameters affect the height of the water jet.）
• 由培訓老師篩選的參考資料說明

參考資料：

• 較基本背景知識（選訓營初訓階段）：
• 較進階資料（適用於國手培訓第二階段）：

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