Sunrise, sunset Published on January 27, 2026January 26, 2026 by fivecolorssandt@icloud.com In-between calculations In the twilight land of Spherical Astronomy. . . Read More
The archives Published on January 20, 2026January 19, 2026 by fivecolorssandt@icloud.com Digging For those of us not utterly organized. . . Read More
On names Published on January 13, 2026January 11, 2026 by fivecolorssandt@icloud.com Oldest, least-understood What does your name mean? Read More
Expensive but worthless Published on January 6, 2026January 4, 2026 by fivecolorssandt@icloud.com The economics of obsolescence Anyone want a high-end enlarger? Read More
