Is America Actually Metric?
Overview
Veritasium explains that the US signed the Metre Convention in 1875 and that all US customary units are officially defined in terms of metric standards. It also touches on the standard kilogram.
On Hacker News
HN commenters link it to show that the US is effectively metric because its customary units are defined from SI.
Topics
Sources
Video by Veritasium, played through YouTube.
Data and selection notes
HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.
HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.
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Selection checks
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