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Thoughts, notes, decisions, experiments, and everything worth keeping in one place.

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GuidesFeatured
Magnetic Compass Deviation
A practical guide to magnetic compass deviation, compass swing readings, and the NDLSK calculator that turns observed errors into a deviation curve.
May 23, 2026 10 min read
NotesFeaturedPinned
What NDLSK Is
A first note about NDLSK, the things I want to keep here, and why this place exists.
May 21, 2026 3 min read

Pinned

NotesPinned
3 min read
What NDLSK Is
A first note about NDLSK, the things I want to keep here, and why this place exists.
May 21, 2026

All posts

Guides May 23, 2026 10 min read

Magnetic Compass Deviation

A practical guide to magnetic compass deviation, compass swing readings, and the NDLSK calculator that turns observed errors into a deviation curve.
Notes May 22, 2026 3 min read

The Meaning Behind the NDLSK Logo

A short look at the ideas behind the NDLSK logo: a lighthouse, green light, initials, and digital roots.
Notes May 21, 2026 3 min read

What NDLSK Is

A first note about NDLSK, the things I want to keep here, and why this place exists.