Observed arrival · 2026-11-01
Humanity Sugar Cube: A Gravity Thought Experiment
An interactive physics explainer compresses an illustrative human population to nuclear density and calculates the resulting gravitational pull.
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◎Niche
◉Human
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ƒJS
- For
- Readers exploring scale, density, and gravity
- Worth noticing
- The model excludes compression energy, nuclear transformations, and Earth’s gravity, and explicitly says the imagined object could not remain compressed.
Field notes
The page exposes the calculation chain from population and assumed per-person mass through density, volume, and an equivalent sphere, with scientific readouts alongside the simpler gauge. Its default assumptions are 70 kg per person and a rounded nuclear-matter density; the population input is described as illustrative rather than census data. Source links include NIST constants, an arXiv paper, and an OSTI-hosted PDF.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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