Draw an Archimedean Spiral
An Archimedean spiral (also known as an arithmetic spiral) is defined by the path of a point that gets farther from a fixed point at a constant rate as it rotates about the fixed point with a constant angular velocity. A string wrapped around an object unwinds in an Archimedean spiral.
- Pen or marker
- Tape a piece of paper onto a piece of cardboard.
- Push a pencil up through the cardboard and piece of paper and tape it in place if necessary.
- Tape a piece of string to the pencil and tie a loop at the end of the string.
- Wind the string onto the pencil and hook the tip of the pen into the loop.
- Keeping the string taut, draw the spiral as you move your pen around the pencil.