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SI UNITS WITHOUT NAMES

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SI UNITS WITHOUT NAMES

the endless rest: assembled from the base and the named units, and never with a factor

Built as a memo rather than a table: the thing worth hanging it up for reads across the room, with the full reference in smaller type below it.

Three sizes in one archive — from a sheet on the fridge to a poster on the wall.

Free

Payment and email are handled by Paddle. The download link arrives by email — no account, no password.

Formats
A4 · A3 · A2
What you get
Print-ready PDFs, one per size, with every letterform converted to outlines — nothing to install, nothing to shift.
Subject
units · school · reference · study

On the left, units assembled from the base units alone; on the right, those whose symbols include named units, each with the same unit written out in base units beside it.

A COHERENT UNIT IS ONE WITH NO NUMBER IN FRONT OF IT

Multiply and divide the units exactly as the equation between the quantities does, and the numerical factor of the product comes out as one. That is what the SI Brochure means by coherence.

A prefix breaks that: a cubic centimetre is 10⁻⁶ m³ and a kilometre per hour is 1/3.6 m s⁻¹. Not one expression on this sheet carries a prefix — except the one inside the kilogram itself, there by historical accident.

Which is why an equation written in SI units needs no conversion factors at all.

On the sheet

  • On the left, units assembled from the base units alone; on the right, those whose symbols include named units, each with the same unit written out in base units beside it.
  • Colour carries meaning, but meaning never rests on colour alone — the sheet reads in black and white.
  • Nothing about how it was made: the sheet carries only what the reader needs.

Printing

  • Three sizes in the archive: A4 — 210×297 mm, A3 — 297×420 mm, A2 — 420×594 mm.
  • All text is converted to outlines. No fonts to install, and nothing shifts on another machine.
  • White background and sparing fills — it prints on a home printer without draining the cartridge.
  • Margins of at least 10 mm: a home printer cannot print to the edge.
  • No stroke thinner than 0.3 mm, so nothing disappears in print.

Why the numbers can be trusted. Every countable number here is computed from data rather than typed in, and the sheet must pass 6 independent checks before it is allowed to build — how many items there are, the order they come in, and the claim in the highlighted box itself. If one fails, there is no file.

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