太阳能计算器必须要有太阳或有光源才能使用。今天这款计算机更厉害，只要有水就行。在这个计算器头部就是主要供电的部件，灌入清水封住盖子它就能开始水工作了。
该供电的原理是根据电解质的化学反应来运作，而且安全不破坏环境。功能方面跟普通的计算器差不多，就是不知道灌一次水能供多久的电，价格还算便宜8.99美元。
译文:
Using water to provide power for calculator
Solar calculator can run as long as there is sunlight or other light source. Now, this type is much cooler, for it can run by using water. The major power supply component is in the front of it. The calculator can work after filling it with water and closing the cover.
The principle of power supply is based on the chemical reaction of electrolytes. It is safe and has no environment damage. Its function is just the same with the general calculator with nice price, only 8.99＄. But we don’t know how long it can run after filing water. That is the problem.