Stack Exchange — mechanics.stackexchange.com

LimitedMediumgraphtextStack Exchange

The content of mechanics.stackexchange.com (https://mechanics.stackexchange.com/), a Stack Exchange question-and-answer site, as published in the Stack Exchange Data Dump of April 2024 on the Internet Archive. The posts table holds 183,155 rows: 67,953 posts (27,266 questions, 39,329 answers, 670 tag wiki excerpts, 670 tag wikis, 15 posts of type 6 and 3 posts of type 7) and 115,202 comments, written between 26 November 2010 and 31 March 2024. Beside it are 59,960 user accounts, 224,945 votes, 93,968 badges awarded, 1,487 tags, 210,405 post revisions and 3,265 links between posts. Every answer keeps the question it answers and every comment the post it was written on, so the threads can be rebuilt. The Internet Archive item describes the dump as anonymised; the votes table names the voter in only 211 rows.

Download data package README Original files as received BibTeX JSONSimilar datasets

Analytics

The interactive network needs JavaScript.

· graph.json

The full graph has 183,155 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

183.2K
Nodes
154.5K
Edges
4.61e-06
Density
28.6K
Components
0.0%
Reciprocity
154.5K
Bridges
Most central nodes
493700.00021
220990.0002
480330.0002
285030.00019
493670.00019
281880.00018
725670.00018
577380.00017
540050.00016
528590.00016
Content metrics

183,155 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

x scoreμ 1.185 ± 2.873
min -8max 119
x view countμ 6.2K ± 27.3K
min 5max 1.1M
x answer countμ 1.443 ± 1.377
min 0max 22
x comment countμ 1.696 ± 2.389
min 0max 38
x favorite count0.2% true
true 0.2%false 99.8%
7.5
Flesch–Kincaid grade
US school grade level
8.0
Automated readability index
Frequent terms
carenginelikeoilbatteryfueldonvehicleneedtimeproblemusenewstartaircheckgoodsystemknowpowerwaysurethinkworkquestionissuebrakegoingpressuredriverightsensorlightwheelmotorfinddoesnwatercoolantwantanswerbadclutchcarscauseturnchangetransmissionlowreplaced
Topic clusters

Topic 0

answer
question
thank
post
edit
comment
site
link

Topic 1

coolant
radiator
water
fan
cool
system
gasket
temperature

Topic 2

battery
charge
alternator
voltage
car
terminal
start
charger

Topic 3

tire
wheel
tyre
rim
size
pressure
alignment
sidewall

Topic 4

oil
engine
change
valve
filter
seal
leak
synthetic

Topic 5

fuel
tank
pump
gas
engine
diesel
pressure
air

Topic 6

car
year
vehicle
mechanic
model
dealer
sell
know

Topic 7

fuse
bulb
light
relay
switch
wire
headlight
beam

Topic 8

brake
pad
rotor
caliper
wheel
fluid
replace
noise

Topic 9

sensor
code
ecu
datum
obd
engine
catalytic
check

Topic 10

clutch
gear
transmission
shift
gearbox
speed
engage
pedal

Topic 11

bolt
torque
wrench
nut
thread
use
fastener
hole
Show all 18 topics

Topic 12

welcome
maintenance
repair
motor
vehicle
question
key
try

Topic 13

paint
rust
coat
wax
sand
use
glue
spray

Topic 14

key
lock
door
start
remote
car
turn
unlock

Topic 15

belt
pulley
timing
tensioner
chain
cam
engine
serpentine

Topic 16

rpm
bike
throttle
engine
torque
idle
fuel
power

Topic 17

plug
spark
coil
misfire
cylinder
wire
ignition
check
Top hashtags
#1500
#2396
#3255
#4173
#582
#679
#747
#829
#921
#1215
#1615
#q12
#109
#189
#239
#309
#118
#138
#148
#218

Computed over the full corpus.

Record

Catalog key
stackexchange-mechanics-stackexchange-com
Authors
Stack Exchange, Inc.
Year
2024
Source paper
Stack Exchange Data Dump
License
CC BY-SA 2.5 / 3.0 / 4.0 (by contribution date) (CC-BY-SA-2.5 AND CC-BY-SA-3.0 AND CC-BY-SA-4.0)
Records
183,155
Nodes
183,155
Edges
154,531 (directed)
Collected
2010/2024 (2010s, 2020s)
Tasks
From the graph: link prediction, community detection
Region
Global (inferred: the platform is used worldwide)

Provenance

Originally published at
https://archive.org/details/stackexchange link checked
Original files as received
The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 62.5 MB across 1 files. Checksums in MANIFEST.json. For use, start with the data package below.
Data package
Version 1.0.0 of this dataset as an ECHO Data Package: posts (183,155 rows), users (59,960 rows), x_votes (224,945 rows), x_badges (93,968 rows), x_tags (1,487 rows), x_post_history (210,405 rows), x_post_links (3,265 rows).
Structure
Temporal (timestamped), Node attributes, Text, Threaded conversations

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@misc{stackexchange_2024,
  title     = {Stack Exchange Data Dump},
  author    = {{Stack Exchange, Inc.}},
  year      = {2024},
  month     = {apr},
  publisher = {Internet Archive},
  url       = {https://archive.org/details/stackexchange}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Stack Exchange, Inc. (2024). Stack Exchange — mechanics.stackexchange.com [Data set]. https://stackexchange-mechanics.echo.directory/

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Stack Exchange, Inc. Stack Exchange — mechanics.stackexchange.com. 2024, stackexchange-mechanics.echo.directory/.

BibTeX · RIS · CSL-JSON

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