Inspired by the work of Victorian mathematician Mary Everest Boole, try making a symmetric curve using string and some hole-punched card, says Peter Rowlett ...

Reuben Gregg Brewer has positions in Federal Realty Investment Trust and Nucor. The Motley Fool recommends Enterprise Products Partners. The Motley Fool has a disclosure policy. Stock Advisor's Stock ...

When you know the basics, you can freely create different patterns based on your imagination. I just give how to make for ...