Plain Lab · notebook
Polar Grid Notebook
Concentric rings crossed by radiating lines, spaced 9.17 mm ring to ring, eighteen to the page, for anything plotted by angle and distance rather than x and y.
Specification
- Trim
- 148 × 210 mm · 5.827 × 8.268 in
- Pages
- 120
- Leaves
- 60
- Sheets
- 30
- Signatures
- 6 × 20pp
- Spine
- 6.86 mm
- Paper
- white
- Ruling
- polar
- Ruling pitch
- 9.17 mm · 26.00 pt
- Rows per page
- 18
The page carries no straight grid. Instead the rule runs in rings and spokes: concentric circles spaced 9.17 mm apart, crossed by lines radiating from the centre, eighteen rings to a page. A reading that has a direction and a distance sits on this ruling the way an ordinary point sits on graph paper, without you converting anything first.
It does not print degree marks around the outside or a compass rose in the corner. The rings mark distance from the centre. The spokes mark a bearing, but the angle itself still comes from your instrument, not from a printed scale. The geometry is drawn as vector lines, not a tiled bitmap, so a ring stays a ring at any zoom.
A protractor still does the measuring. The page only holds where the reading lands.
What is inside
- Polar pages
- 110pp
- Concentric rings at 9.17 mm, crossed by radiating spokes, drawn as vector lines.
- Reference
- 10pp
- Conversion tables computed from definitions and emergency numbers checked against two sources.
The film
Page by page
A vertical film from our own bench — this page contacts nobody's server to play it, and downloads nothing until you press play.
Real pages
Made at the Hibrkraft bindery, Bogor · about the maker
Books that sit alongside it
- Semi-Log NotebookAlso in Plain Lab
- Manuscript NotebookAlso in Plain Lab
- Storyboard NotebookAlso in Plain Lab
- Seyes Ruled NotebookAlso in Plain Lab
Questions
What is a polar grid?
Concentric rings crossed by lines radiating from the centre, for plotting a reading by distance and angle rather than by x and y.
How far apart are the rings?
9.17 mm, eighteen rings to a page.
Are degree marks printed around the edge?
No. The spokes mark direction; you still measure the angle with a protractor.
Is the ruling a printed image?
No, vector lines throughout, so a ring holds its shape at any zoom.
Is it dated?
No.
There are numbers of the like kind; especially if you include dreams, and predictions of astrology.
