Wind

Which Rotor Had More Power?

I was told to test just one of mine due to time issues, but the one that was tested was made out of poster board cut into four blades that each intersect eachother. At the ends of each blade is a cup like figure to help catch the wind drifting from the fan.

Why Was It Necasary To Twist The Rotor Blades at an Angle?

Twisting the blades helped them move with the wind or to help it catch wind without it like this, its likely that it wont spin.

Explain How The Rotors On a Wind Windmill and The Sail of a Sailboat Illistrate The Same Principle.

Withput a sail on a sailboat it wouldnt be able o move as fast, it would only be able to move by the push of the waves. When the wind catches the sail or a blade catches the wind it helps push forward or backwards depending on the set up of the wind and the sail.