Make a Non-Electric Fan - Step by Step Guide for Students

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To build a non-electric fan that spins in a wind tunnel, focus on creating vanes angled to catch the wind effectively. Use a low-friction axle to allow smooth rotation. Stiff materials, such as manila folders, can be used for the fan blades, and the design can be scaled down from larger windmill models. A suggested resource for guidance is a website that provides instructions for building windmills. This project can be completed in about an hour with the right materials and design.
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hey, i am a year 11 student, we have an assignment where we must build a fan (non electric) that will spin once wind from a wind tunnel in blown onto it...Now i know this may sound rather simple, and it probably is...but i am just looking for some guidlines on how to make a fan that will WORK. Any help or links to other websites would be much appreciated. Thanks for your help in case i don't get a chance to reply :smile:
 
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Not much to it is there? Vanes to catch the wind- at an angle so that the wind pushes them in a given direction. An axles without too much friction.
 
Try here:
http://www.creative-science.org.uk/windmill1.html
This si for a large windmill, but you can size it down and use stiff paper (like a manilla folder). It's easy to do, take about an hour.
 

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