Reflection on Billiards and Math Feb 2024

• khoitsma
• General, Kids (middle school and up), Mathematics
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This inscribed triangle is a periodic billiard trajectory called the Fagnano orbit, named for Giovanni Fagnano, who in 1775 showed that this triangle has the smallest perimeter of all inscribed triangles.

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John Smeaton — "Father of Civil Engineering" Feb 2024

• khoitsma
• Engineering, General
• 0 Comments

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AISC Bolt Shear Capacity — Minimum Dimensions Feb 2024

• khoitsma
• AISC, Engineering, Engineering Codes, Pythonista, Steel Detail
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What Happened to the US Machine Tool Industry? Jan 2024

• khoitsma
• General, History
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A serious article

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What is the Day of the Week? Jan 2024

• khoitsma
• General, Kids (middle school and up), Mathematics, Mental Math
• 0 Comments

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Excel — Dictionary References with PyXLL Jan 2024

• khoitsma
• Concept, Excel, Python, PyXLL
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