About ScaleTrip

Turn a number into a scene

Four kilometres, one trip around Earth, one light-year: the numbers are precise, but their scale is hard to picture. ScaleTrip places any distance beside people, buildings, landscapes, planetary orbits and galaxies so you can see what the number means.

Travel outward—or inward

The distance visualizer moves through 71 references from one metre to the observable universe. The micro journey travels the other way, from one metre through cells, DNA, atoms and nuclei to 10⁻²⁰ metres. Both experiences stay on one continuous logarithmic scale that you can play or scrub yourself.

Exact numbers, readable pictures

Calculations use the real distance. Only the spacing and artwork size are compressed logarithmically so radically different scales can share one screen. Distance, height, diameter, circumference and estimated range remain distinct; the methodology explains the calculations and their limits.

Artwork made for ScaleTrip

Object, landmark, planetary and cosmic scenes are original images created for ScaleTrip. Map outlines use public-domain Natural Earth data, with image and data sources identified in the relevant views and credits.

Tell us what would make it better

Send corrections to distances, descriptions or sources—and any usability issue or feature idea—to [email protected].

Publisher and editorial policy

Operator and publisher: fixuncomfortable.com · [email protected]. This is the domain-based public label supplied by the owner. ScaleTrip is an independent educational project; source citations identify evidence rather than institutional affiliation or professional credentials.

ScaleTrip is the project that prepares and publishes this site's educational content. It combines distance calculations, explanations and visualizations, with sources and review status identified for individual records.

How to read measurements and sources

Measurements identify their definition: length, height, radius, diameter or distance. A mean, typical range, approximation and experimental upper bound each have a distinct meaning. Unit conversions, reference ratios and constant-speed travel times are calculations from the stated values.

Scientific explanations prioritize research publications and institutional sources such as NASA, USGS and NIST. Sourced records link to their evidence and review status; representative values needing further review retain that label. A page update date records a content change, while an individual source-check date records a source check.

Artwork and scientific evidence

Immersive backgrounds and some object images are AI-generated or edited illustrations. Photographic-looking scenes are educational reconstructions; linked evidence supplies the measurements. Atomic, particle and Earth-interior scenes are conceptual visualizations. Actual strata and groundwater depths vary with local geology.

Corrections and citation

AI tools assist some drafts, translations, code and illustrations. AI output itself is not scientific evidence. Source checks are recorded per item; automated calculation checks test arithmetic and implementation against stated inputs. They do not replace independent expert review or validate the whole catalogue. Corrections are compared with linked evidence, and substantive page changes update the revision date. No fixed publication schedule or response deadline is promised.

For a correction, send the page URL, the value in question and supporting evidence. To cite a page, include ScaleTrip, its page title, language-specific canonical URL and your access date. Consult the linked original source when citing the underlying measurement. Send a correction.

Public data and reuse

Reference data, provenance and CC BY 4.0 reuse notes. Reviewed values and pending records are distinguished, with reproducible calculation methods.