Featured in Domain Arrivals · 2026-08-15
Groundrush: A Logbook That Knows What You’re Missing
An in-development logbook for skydivers and BASE jumpers that compares a person’s record with the requirements for a licence, rating, or prospective jump.
Why it surfacedGroundrush treats a logbook as an input to a competency engine rather than an archive, with sourced requirements, explicit uncertainty, offline use, private-by-default records, and a separate BASE data model. It is not available yet, but the unusually careful thinking about units, privacy, exports, and unverifiable statistics makes this a worthwhile callback.
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The Two-Tonne Temperature Problem
August 15’s newborn domains include a live-aboard hydrogen airship with a two-tonne lift problem, a Japanese toolbox that explains its assumptions, an advisory-by-advisory Hawaiʻi hurricane archive, and a wedding-gift game about ungrateful poultry.
This is one of 1,000 discoveries in the 2026-08-15 Domain Arrivals issue.