Every trade has a few tools so entrenched they've become the default: Mitutoyo calipers, the Shure SM57, a Cambro. This register writes that knowledge down: 465 entries across 45 trades, written, contested, and voted on by the people who use them. Open to read, invite-only to write. An entry becomes a Recognized Standard at +10, every entry starts at zero, so the first standards will be decided by whoever shows up. No sponsors, no affiliate links.
Time Since Launch is a way to mark a moment in time. Your moment zero. The beginning of your epoch. Mark the day you quit your job. Mark the moment you get married. Mark the moment you launch your rocket into space.