Row 270: page

Source · scan and Parse blocks

Parse text by block 1 blocks reading order

0
PictureHYDROSTATICS. Plate CCXXXIX.

Provenance page_id, checksum, Parse model

page_id: britannica:309f765b1ecc83e0a7f7762e44b4a927a7555443:train:270
sha256: 6831cc1f149b50ecdf07b3af7ab3e4ef10572a486faafa06481061973c4100f8
Parse: nvidia/nemotron-3.5-parse · finish stop

LaTeX from Parse blocks ok Open PDF LaTeX source

Inspector · generated

Page match

plate page

matched Hydrostatics

Scores and reasoning

[W:527232:1334920169]

Running head topic HYDROSTATICS. Plate CCXXXIX.

Rerank: -1.66
Margin: 0.66
BM25 rank: 1

supervl+bm25+embedvl+rerankvl

Plate result from artifacts/plates/270.json: Rerank VL top 1 equals Embed VL top 1

Plate · visual match

matched Hydrostatics rev 1334920169

Rerank VL top 1 equals Embed VL top 1

Super VL subject Hydrostatics

Neighbor scans 4

Source · neighbor scans in the dataset (same volume id). They are not always the next printed pages.

-2 · 268 LA U [ 6oz ] L AU

-1 · 269 JES [ 124 I JES

+1 · 271 **ING [27] ING**

+2 · 272 I N S [ 252 ] I N S

Super VL description

nvidia/Nemotron-3.5-Super-VL description from the plate image and neighbor text

This engraved plate, titled 'HYDROSTATICS. Plate CCXXXIX.', displays a collection of scientific diagrams illustrating principles of fluid mechanics. It features various apparatuses, including a large water wheel system (Fig. 1), siphons, barometers, and different types of vessels, all labeled with letters and figure numbers.

Subject: Hydrostatics
Search: Hydrostatics; hydrostatics principles fluid mechanics; hydraulic press water wheel diagram; barometer siphon vessel experiment; hydrostatic pressure buoyancy apparatus

Ranking per stage 10 candidates

BM25: Hydrostatic skeleton
Embed VL: Hydrostatics
Rerank VL: Hydrostatics image + caption
Rerank VL: Hydrostatics image only

Candidate	BM25	cos	logit	img
Hydrostatics	1	0.329	-1.66	-2.02
History of fluid mechanics	3	0.275	-2.32	-2.26
Hydrostatic loop	2	0.243	-3.71	-3.81
Fluid mechanics	5	0.285	-3.84	-3.75
Torricelli's experiment	4	0.274	-3.91	-3.80
Siphon	1	0.296	-4.04	-3.94
Hydrostatic head	5	0.284	-4.25	-4.28
Hydrostatic pressure	3	0.263	-5.03	-5.28
Gasparo Berti	2	0.247	-5.25	-5.09
Hydraulic analogy	3	0.251	-5.53	-5.49

30 BM25 candidates, top 10 by Embed VL cosine sent to Rerank VL. Cosine is document-to-document (plate image vs article text).

Entries · Wikipedia matches

0 matched · 1 uncertain

(continuation)B:270:0 uncertainno usable text

HYDROSTATICS. Plate CCXXXIX.

plate caption only; page matched by plate worker

Best candidate: Hydrostatics

Rerank
-4.19

Margin
1.60

Cosine
0.300

BM25 rank
2

bm25+embed+rerank

entry has 28 chars (< 40); too short to judge

Built 2026-10-18 17:02. Britannica scans: public domain (CC0). Wikipedia text: CC BY-SA 4.0, linked by page and revision. OCR text is Parse 3.5 output without correction.