Paper Cup Anemometer

Cup anemometers are simple instruments used by meteorologists to measure wind speed.  This set of instructions will guide you through the process of making a very simple anemometer using some common household products.  

Step 1 Materials needed

5  3oz. paper cups
2  Straws
1  pencil with eraser
1  push pin
1  pair of scissors

Comments

[SnowWitch]

This is pretty neat. I never would have thought of this! Nice, coherent instructions too, much better than some other 'ibles.