You have one of these Chinese small portable mini fan.
You have an aquarium; u want to make that mini fan to move water inside the aquarium, so the blades can rotate inside the water and move the water to hit slowly one determinate wall of the aquarium that have some specific marine life that need that specific 'effect' of moving water over it, so... the effect of the blades of the mini fan supply what you want, but how you do, so the electrical embodiment (batery, etc, etc) of the mini fan will never be in contact with the water, plus if there if a small contact with H2O, that will not affect the life of the aquarium?
Imagine that you sumerge the entire mini fan in the aquarium...
how, what you do, so the mini fan/blades, etc keep working without affecting the ecosystem, plus the 'life' and embodiment is not affected in any way? But, if u don't want the embodiment to have contact with the water,how you prepare its blades to only make contact with H2O? Any idea
http://topmost-sh.en.alibaba.com/product/50207347/51142951/Mini_Fans/Mini_Fan.html
2006-11-11
05:19:13
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3 answers
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asked by
Anonymous