| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an apparatus whose function can be continuously observed by utilizing the principle of Heron's fountain to simplify conventional troublesome works such as replacement of water.SOLUTION: A fountain apparatus 1 comprises an upper container body 3 and a lower container body 5. The upper container body 3 comprises an upper pressing-up part 11, an upper fountain part 15, and an upper communication pipe 17 which brings the upper pressing-up part 11 and the upper fountain part 15 into communication. The lower container body 5 comprises a lower fountain part 21, a lower pressing-up part 25, and a lower communication pipe 27 which brings the lower fountain part 21 and the lower pressing-up part 25 into communication. The upper fountain part 15 and the lower pressing-up part 25 are brought into communication by an upper tube 29, and the upper pressing-up part 11 and the lower fountain part 21 are brought into communication by a lower tube 31.</p> |
