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Pump alternative and the fan motor involved

Relaxing in a long chair, Tibor considered the problem of lifting water in general, and a completely different solution assembled in his mind, that is a bucket chain made from simple materials. This is the initial draft that contains already specific solution ideas for the pouring of the water etc.
For supplying the driving force to the buckets, a standard computer fan could be exploited as a motor (removing the blades; using the outside rotor directly as a pulley). The pictured fan develops an equivalent of 10-20 grams on that circumference and runs at around 20 revolutions per second.