给宠物充分的自由，并让它们得到足够的锻炼。这个想法很不错，但对于生活在水族箱中的鱼类来说，这要怎么实现呢？说起来也简单，只需要把水族箱固定在一部遥控车上，然后设定一种装置，让鱼儿自行完成驱动和转向。
听起来很酷吧？你可能很好奇，人类是如何教会水族箱中小小的鱼儿学会操纵微型方向盘的。其实，真正的驾驶者也不是鱼儿。在水族箱的上方安装了一个摄像头，追踪到鱼儿朝哪个方向游，遥控车就会向相应的方向跑。
不知道鱼儿是否明白这种设计的用意何在，但也许只要有了足够的耐心，可以训练你的宠物鱼听懂指令，接受指挥。
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It's always a good idea to give your pets lots of exercise and freedom. But how does that work with a fish who are reliant on a tank full of water to live? That's easy; you just strap its aquarium to an RC car and rig up a device that lets the fish steer. Sound crazy? Of course it does, but that's what makes this hack so great. And you might be wondering how the folks at Studio Diip taught this goldfish to manipulate a tiny steering wheel. But that's not how they did it. Instead, a webcam perched above the tank tracks the fish's position, and whichever side it swims to is the direction the RC car goes.
It's not clear as to whether the fish actually catch on to what they're doing. There's no footage of the RC car crashing into walls or rolling off the edge of a staircase. But with enough patience you can probably train a goldfish to come for dinner, via some Pavlovian-style conditioning. Or, just be entertained at this thing randomly cruising around your home.
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