Data is Beautiful

Source

cross-posted from: https://piefed.world/c/dataisbeautiful/p/1185547/the-world-is-seeing-highest-number-of-armed-conflicts-since-world-war-ii

Source.

Source

How people allocate their 24 hours across commuting, entertainment, housework, and other daily activities from 1920 to 2026.

All figures represent the average U.S. adult aged 25 to 35 during each period, ensuring comparability across decades. The data reflects long-term shifts driven by industrialization, urbanization, television, the internet, smartphones, remote work, and changing social structures. The chart excludes sleep, work, and other activities with minimal variation, focusing instead on structural changes across decades.

Credit goes to df_iris

OGDF C++ library provides some graph generators, I made it possible to use them from terminal, not by writing C++ client code. Got some pleasant pictures, here they are.

1. Graphs of ~32 nodes, FMMM layout.
2. Graphs of ~512 nodes, FMMM layout.
3. Graphs of ~512 nodes, ForceAtlas2 layout.

Each node is labeled by it's degree - count of incoming/outgoing edges. Colored accordingly, from blue to red.

Powershell code for creating these pictures goes like that:

# define params for each generator
$genLines = @'
complement --n 32 --directed false --allowSelfLoops false
regularLatticeGraph --n 32 --k 4
regularTree --n 32 --children 2
completeGraph --n 32
completeBipartiteGraph --n 16 --m 16
wheelGraph --n 32
cubeGraph --n 5
globeGraph --meridians 8 --latitudes 4
suspension --s 32
gridGraph --n 8 --m 4 --loopN false --loopM false
petersenGraph --n 16 --m 2
emptyGraph --nodes 32
randomRegularGraph --n 32 --d 4
randomGraph --n 32 --m 100
randomSimpleGraph --n 32 --m 100
randomSimpleGraphByProbability --n 32 --pEdge 0.2
randomSimpleConnectedGraph --n 32 --m 50
randomBiconnectedGraph --n 32 --m 60
randomPlanarConnectedGraph --n 32 --m 60
randomPlanarBiconnectedGraph --n 32 --m 60 --multiEdges false
randomPlanarBiconnectedDigraph --n 32 --m 60 --p 0.0 --multiEdges false
randomUpwardPlanarBiconnectedDigraph --n 32 --m 60
randomPlanarCNBGraph --n 32 --m 60 --b 5
randomTriconnectedGraph --n 32 --p1 0.5 --p2 0.5
randomPlanarTriconnectedGraph --n 32 --m 80
randomPlanarTriconnectedGraph --n 32 --p1 0.3 --p2 0.3
randomTree --n 32
randomTree --n 32 --maxDeg 4 --maxWidth 10
randomDigraph --n 32 --p 0.1
randomSeriesParallelDAG --edges 60 --p 0.5 --flt 0.0
randomGeometricCubeGraph --nodes 32 --threshold 0.3 --dimension 2
randomWaxmanGraph --nodes 32 --alpha 0.5 --beta 0.2 --width 1.0 --height 1.0
preferentialAttachmentGraph --nodes 32 --minDegree 2
randomWattsStrogatzGraph --n 32 --k 4 --probability 0.3
randomHierarchy --n 32 --m 3 --planar true --singleSource true --longEdges false
pruneEdges --max_edges 60 --min_deg 2
'@

# generate graphs and layout/render with GephiCommander
$genLines | % {
$genCode = $_ -replace '\s+'
$outFile = Join-Path (gi ./img/) "$genCode$(Get-Date -Format FileDateTime).png"
$generatorArgs = $_ -split ' '
$expr = /bin/echo `& $ogdfCli --generate @generatorArgs --out-file delme.dot
Invoke-Expression $expr
@(
  @{op='import'; file='delme.dot' }
  @{op='preview'; 'background-color'='#171717'; 'nodeLabelShow'=$true; }
  @{op='colorNodesBy';column='degree'; mode='ranking'}
  @{op='labelNodesBy';column='degree'; }
  @{op='layouts'; values=@(
    @{name='ForceAtlas2'; steps=200}
    @{name='Expansion'; 'Density'=5000; steps=1;  }
  )}
  @{op='export';file=$outFile; timestamp=$false; resolution=@(512,512); }
) | ConvertTo-Json -d 9 | java -jar $gephiCommander -
$cmdEscaped = $generatorArgs -join ' '
magick $outFile -gravity SouthWest -undercolor "rgba(0,0,0,0.5)" -fill white -pointsize "%[fx:int(h*0.04)]" -annotate +10+10 $cmdEscaped $outFile
}

# Put all pngs into $files var and combine them into a grid
magick montage $files -tile "${cols}x${rows}" -geometry "400x400+2+2" -background "black" "img/grid_output$(Get-Date -Format FileDateTime).png"

To read the essay, check out the main page here: https://anatomyof.ai/

Source

Source: https://www.pewresearch.org/journalism/2025/06/10/the-political-gap-in-americans-news-sources/pj_2025-06-10_news-media-sources_0-04/

I recently installed an Emporia Vue with monitoring for the individual circuit my water heater is on. It captured the very significant difference in energy usage from replacing resistive heat with heat pump.

https://www.politico.eu/article/usa-popularity-collapse-worldwide-trump-return/

Source: https://www.pewresearch.org/journalism/2025/06/10/the-political-gap-in-americans-news-sources/

While being more than 9000 kilometers away, I can still see and hear what birds are currently singing in the Vondelpark - Amsterdam.

https://luistervink.nl/locations/vondelpark/live/

I hope the herons and the owls don't mind.

@dataisbeautiful

Stolen from R*ddit: https://www.reddit.com/r/dataisbeautiful/comments/1l9ij5z/oc_favorable_views_of_the_us_have_declined/

Petition: https://eci.ec.europa.eu/045/public/#/screen/home

Post inspired by this recent comment about how useful 120 is (or 240 in this case), because its can be evenly divided so many ways: https://sh.itjust.works/post/40842670/19379837

Source: https://www.royalmintmuseum.org.uk/journal/history/pounds-shillings-and-pence/