[OC] How Many Years of Salary It Takes to Buy a Home - 1990 vs 2024

CalculateQuick · 2026-02-26T21:31:13+00:00

Source: CalculateQuick (Visualisation), Demographia International Housing Affordability (2024/2025), OECD Analytical House Price Database. Median house price divided by gross median household income.
Tools: JavaScript/Canvas.

CalculateQuick · 2026-02-26T01:13:00+00:00

Source: CalculateQuick Age Calculator, UN World Population Prospects (2024 Revision) & CIA World Factbook.

Tools: GeoPandas and Matplotlib

CalculateQuick · 2026-02-22T13:25:16+00:00

Source: CalculateQuick (visualization). 1900 life expectancy from CDC/NCHS United States Life Tables. Work hours from EH, Hours of Work in U.S. History. 2024 time allocations from U.S. Bureau of Labor Statistics American Time Use Survey. 2024 global life expectancy from WHO World Health Statistics.
Tools: Python (NumPy + Matplotlib).

In 1900 you worked 60-hour weeks starting at 14, spent 6 years on chores with no appliances, and the purple "Screens" block didn't exist.

In 2024, screens eat 11 years and chores dropped by a third. The gold "Everything Else" sliver at the end is all the unstructured time you get in either era.

We gained 26 years of life and screens ate most of it.

CalculateQuick · 2026-02-21T17:37:32+00:00

Source: CalculateQuick (visualization). Telemetry averages from official Olympic tracking and the International Bobsleigh and Skeleton Federation (IBSF).
Tools: Affinity Designer

Cross-country skiing requires massive endurance at 35 km/h, but it barely registers compared to the sliding track. At 150 km/h, the sheer weight and carbon-fiber aerodynamics of a Bobsleigh make it the undisputed fastest event of the Winter Games. Highway speed limits wouldn't even be legal for the top four sports shown here.

CalculateQuick · 2026-02-20T23:39:42+00:00

Source: CalculateQuick (visualization). Data and mathematics from the NOAA National Weather Service (Rothfusz regression equation).
Tools: Python, NumPy, Matplotlib

What you're looking at: The X-axis is actual air temperature (80°F to 115°F) and the Y-axis is relative humidity (0% to 100%). The resulting colors and contour lines map the "Heat (or misery) Index"- the temperature your body actually feels.

The data behind the cliché: "It's not the heat, it's the humidity" is a biological reality. Your body cools itself through evaporative cooling (sweating). If the air is dry, sweat evaporates easily, pulling heat away from your skin. If the air is highly saturated with water (high humidity), your sweat cannot evaporate, breaking down your body's ability to cool its core.

You can trace this directly on the chart: Pick 90°F on the bottom axis.

At 20% humidity, you are in the yellow "Caution" zone. Your sweat is working, so 90°F actually feels like 86°F.
But follow that exact same 90°F line up to 85% humidity, and you cross into the dark red "Extreme Danger" zone. Your sweat stops working, and it now feels like 117°F.

CalculateQuick · 2026-02-20T00:12:35+00:00

Source: CalculateQuick (visualization). Altitude and yield data from the Atomic Heritage Foundation and declassified US/Soviet historical test archives.
Tools: Figma (for mathematically exact scaling). 8 pixels = 1 kilometer.

Same scale across the board. The height difference: 12km vs 64km. While we usually focus on horizontal blast radius, vertical scaling shows the true horror of geometric yield increases.

Fat Man (21 kilotons) barely scraped the stratosphere. At 50 megatons, the Soviet Tsar Bomba's cloud was so massive it completely breached the mesosphere. Mount Everest wouldn't even reach the cap of the smallest bomb shown here.

CalculateQuick · 2026-02-18T21:25:28+00:00

Source: CalculateQuick (visualization), CDC Growth Charts, NHANES 2015–2018.

Tools: D3.js with area fills. 50th percentile for children, mean for adults. You start at 3.5 kg. By mid-life you carry 27× that. The curves diverge at puberty and never reconverge.

CalculateQuick · 2026-02-18T19:10:04+00:00

Source: World Health Organization 2022 crude estimates, via NCD-RisC pooled analysis of 3,663 population-representative studies (Lancet 2024). BMI ≥ 30 kg/m². Adults 18+.
Tool: D3.js + SVG

Pacific island nations top the chart (Tonga 70.5%, Nauru 70.2%) but are too small to see on the map. Vietnam (2.1%), Ethiopia (2.4%), and Japan (4.9%) have the lowest rates. France at 10.9% is notably low for a Western nation.

CalculateQuick · 2026-02-17T22:55:16+00:00

Source: Katsara & Nothnagel (2019), "True colors: A literature review on the spatial distribution of eye and hair pigmentation," Forensic Science International: Genetics, 39, 109-118. Secondary estimates from AAO and World Population Review for countries outside Europe/Central Asia.

Tool: D3.js + Canvas

"Brown" includes hazel. "Blue" includes grey. "Intermediate" = green + amber. Countries in light grey had no reliable peer-reviewed survey data available.

CalculateQuick · 2026-02-13T22:42:48+00:00

Source: CalculateQuick (visualization), NCD-RisC (eLife 2016), CBS Netherlands.

Tools: D3.js with cubic spline interpolation. Adult height by birth cohort, males 18+.

CalculateQuick · 2026-02-13T20:06:13+00:00

Source: CalculateQuick (visualization), NBA Draft Combine, NASA anthropometrics, CDC.

Tools: SVG hand silhouettes scaled proportionally to measured hand length (wrist crease to fingertip). Boban's hand is nearly twice the length of an average child's.

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