Skip to content
Jot
Home
Trending
Top
Tags
Groups
Theme
Privacy·Terms
Sign in
Home
Search
Trending
Sign in

measurement

All tags
BL
Bo Lindqvist
22d ago

Koji on barley, day by day

A 47 hour log of growing Aspergillus oryzae on pearl barley: bed temperatures, humidity, two interventions at four in the morning, and where the safety line actually sits.

craftfermentationfield-notes
★stars: 37 min read
IS
Ivo Sandoval
01 Aug 2026

Mapping my own light pollution

I put an SQM on a 1 km grid across Lisbon and made a lovely contour map of something that cannot honestly be contoured. Four months, one admission.

astrophotographycartographylight-pollution
★stars: 57 min read
AN
Adaeze Nwosu
26 Jul 2026

Blitz ruined my calculation and I fixed it in 400 games

Four hundred tracked games, blunder rates by time control, and the two rules that halved mine. Includes every reason my own numbers should not convince you.

chessevidencemaths
★stars: 87 min read
HM
Hal Mireles
15 Jul 2026

Rust removal, five methods, one winner

I sheared a rusty belt guard into five coupons and gave each one a different treatment. Times, costs, mass loss, and what each did to the metal underneath.

craftfield-notesmachining
★stars: 68 min read
IS
Ivo Sandoval
11 Jul 2026

The Bristol Channel and a very confused datum

Chart Datum at Avonmouth sits 6.50 m below Ordnance Datum Newlyn. Here is the arithmetic that goes wrong when a height file does not name its zero.

cartographyevidencefield-notes
★stars: 87 min read
BL
Bo Lindqvist
07 Jul 2026

Same flour, same oven, four hydrations

Four doughs, one sack of flour, one bake. 65, 72, 80 and 88 percent hydration measured properly. 72 won, and the wettest dough lost badly.

bakingcraftevidence
★stars: 86 min read
DK
Dr Ines Kruger
03 Jul 2026

Bioavailability is where the marketing hides

What bioavailability actually is, the area comparison that defines it, and five ways a ten times more absorbable claim gets made without anybody measuring an area.

evidencemathsmeasurement
★stars: 117 min read
GA
Gerard Aalders
29 Jun 2026

Instrument Serif is doing something clever

I opened the font file first. One weight, no axes, hairlines at 25 units on a 1000 unit em, and an ear on the g I would rather it did not have.

designmarkdownmeasurement
★stars: 87 min read
TV
Tomas Vrba
31 May 2026

My sky is not dark and I have the numbers

Two years of SQM-L readings from one hole in my lawn, the night a floodlight went up next door, and what 0.33 mag/arcsec^2 costs in hours.

astrophotographyevidencefield-notes
★stars: 77 min read
MF
Mel Farrow
10 May 2026

Your pack is four kilos heavier than you think

How to weigh a pack honestly, bin bag and wet tent included, and the point where cutting grams stops buying you speed and starts costing you sleep.

gearhikingmeasurement
★stars: 78 min read
HM
Hal Mireles
30 Apr 2026

You cannot buy a good square anymore

Test the square you already own by reversal, then hold it against what DIN 875 actually allows. Eight squares, my own measurements, one of them firewood.

craftmachiningmeasurement
★stars: 98 min read
GA
Gerard Aalders
08 Apr 2026

A case binding in nine steps and one failure

Real millimetres for a cloth case over sewn sections, then step ten, where I turned a board to save two euro of greyboard and got 3.8 mm of warp.

bookbindingcraftfield-notes
★stars: 99 min read
DK
Dr Ines Kruger
02 Apr 2026

How to read a supplement study in nine minutes

The order I read them in, the specific red flag at each step, and one clean trial walked through end to end. Most papers fail before minute three.

evidencemeasurementmedicine
★stars: 8⑂forks: 17 min read
NA
Nefeli Aslanidou
27 Mar 2026

Pliny describes his villa and nobody can draw it

Epistulae 2.17 gives no dimensions at all, only sunlight, wind and the verbs for next to. Four centuries of reconstructions and not one of them holds.

close-readinglatinmeasurement
★stars: 78 min read
WT
Wren Trelawny
09 Mar 2026

Rockpool survey, Prussia Cove, fourteen low tides

Fourteen low waters at Bessy's Cove over one winter, written up as if it were data, plus a long section on why it mostly is not.

evidencefield-notesmarine-biology
★stars: 98 min read
TV
Tomas Vrba
25 Feb 2026

218 hours on one galaxy

Three winters on NGC 891 from a Bortle 4 backyard. Full log, the square root maths on what each block of hours bought, and the 40 hours I deleted.

astrophotographyfield-noteslight-pollution
★stars: 1011 min read
DW
Dan Whitlock
19 Feb 2026

EXPLAIN ANALYZE has never lied to me

A support query that took 13.8 seconds, a report that timed out at 300, and a fix that turned out to be statistics rather than an index. Real plans, Postgres 18.2.

debuggingmeasurementpostgres
★stars: 127 min read
DK
Dr Ines Kruger
01 Feb 2026

Magnesium: what the trials actually show

Every indication I could find evidence for, graded, with the trials named. Migraine holds up, cramps do not, and the forms arithmetic is worked out because nobody prints it.

evidencemeasurementmedicine
★stars: 1011 min read
IS
Ivo Sandoval
14 Jan 2026

Every projection is wrong, here is how much

Gauss closed this in 1827 and Tissot gave us a way to measure the damage. Six projections, real distortion figures, and the Gall-Peters fight done properly.

cartographydesignmaths
★stars: 68 min read
PN
Priya Nagarajan
01 Jan 2026

Benford's law, and when it lies to you

The digit distribution, the formula, and the five boring reasons honest data fails it. Plus the arithmetic showing how big a fraud has to be before the test notices.

accountingevidencefraud
★stars: 78 min read