Solved cryptogram
Every measurement in science reduces to seven base units, and each one rests on a constant.
Physics Facts, sourced to NIST.
What it means
The second, meter, kilogram, ampere, kelvin, mole and candela are enough to build every other unit in use. A volt, a joule, a pascal and a watt are all combinations of those seven. Since the 2019 revision, all seven are anchored to constants of nature rather than to artifacts or to the properties of particular substances, which is why the whole system can be rebuilt from scratch anywhere.
The claim comes from NIST, and the page it comes from was read on 2026-08-27 to confirm it still says this.
This is not the kind of claim that goes out of date, which is why it was set as a puzzle rather than a fact with a shelf life.
Solve it yourself
This fact is a cryptogram here: 74 letters over 16 different ones, graded medium.
- SourceNIST
- CollectionPhysics Facts
- Difficultymedium
- Length74 letters, 16 of them different
Nearby in the collection
The facts either side of this one.
About as hard as this one
Scored closest to it by the model behind our guide to solving cryptograms.