How to make a working windmill model?

How to make a working model of :-?

Hey!.. :) I need a little help on how to make a working model on rooftop water harvesting ... It should be easy, and if we cant make a working model, how to make a simple model.. ThnQ ...show more
Answer:

Take a two liter bottle and a pop bottle a box and tape a ruler and a piece of something hard and waterproof punch holes in the two liter (top, one side) tape the ruler at a 90 degree angle on top of the box put the hard waterproof thing on top so it now slopes put the pop bottle under the edge of waterproof "roof" then fill the 2 liter with a little water and hope if unside-down over the "roof" some of that water will go into the pop bottle and you have collected your "rain".. Or another choice is to search this..

ZEKNXYXINNGXL537MVSASMH3E4 at Yahoo! Answers Visit the source

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Other answers

Just use a large funnel cone, a pipe, and a catchment bucket of some description. 2-second fix. Easy!

PlanB™

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