NanoraptorMar 13

iso paper sizes are delicious: sides are 1:sqrt2 or about 1:1.414

A4 is 210x297mm

A4 folded in half is 148x210 or A5.

A3 is two A4s, or 297x420

go to A0 841x1189 or one square metre.

A-1 (A Minus One) is 2 square metres.

Australia is ~A-43

The visible universe ~A-179

A proton about A139.

A Quark? A151

Presumably A232 is one dimensional though, as it's planck length on the long edge.

Show threadShadSterlingMar 13

@NanoRaptor I keep wanting to make a sort of math translation tool, and now I want it to accept these units.

I can never remember what an acre is, now I want to know its A-size

Show threadDaveMar 14
@ShadSterling @NanoRaptor An acre is approximately 4047 square metres, so (if I understand sizes larger than A0 correctly) just slightly smaller than 12A0.
Show threadFrédéric Grosshans
@Daveosaurus @ShadSterling @NanoRaptor You mean A-12, or 2¹² A0,
Mar 14 at 10:51amWeb
Show threadDaveMar 14
@fgrosshans @ShadSterling @NanoRaptor that would be more logical, but the international standard does it differently. I also remembered slightly wrong - the numbering is arithmetic, not geometric, so the size I thought would be 12A0 is actually 4096A0 .... Which would make the standard rather useless for anything larger than an extremely large sheet of paper, unfortunately. https://en.wikipedia.org/wiki/International_standard_paper_sizes
International standard paper sizes - Wikipedia