Table tennis table length2.74 m
ICUX-004 · 24 referenced anchors · 25 orders of magnitude
Microscopic to monumental.
Move from a 2-nanometer DNA width to the 4.24-light-year gap to Proxima Centauri without flattening what the measurements mean. Every point keeps its dimension kind, uncertainty, source, and evidence boundary visible.
ComparableOne-dimensional length magnitudes only
Never coercedArea and volume are rejected, not converted into “length”
Visual truthOriginal vectors explain; source records provide evidence
Log-scale explorer
Keep the ratio. Keep the meaning.
The common axis is logarithmic in meters, from 10⁻⁹ to 10¹⁷. Height, span, diameter, width, length and distance stay labeled as distinct kinds.
Table tennis table is 68.5× the diameter of a table tennis ball.
2.74 m ÷ 40 mm = 68.5. Both are one-dimensional lengths; their semantic kinds remain length and diameter.
Microscopic
Objects
Buildings & structures
Astronomical
Table tennis ball diameter40 mm
The smaller bar is below 2% of the larger bar, so a minimum visible stroke is used. The textual 68.5× ratio is authoritative.
Dynamic explorer unavailable.
The static 24-anchor evidence ledger below remains complete and source-visible.
Anchor cabinet
Twenty-four points, no decorative filler.
Choose either side of the ratio directly from any card. Documentary facts are text-and-source based; the page does not embed third-party documentary imagery.
microscopic
DNA double helix width
about 2 nm
Approximate width of a DNA molecule.
microscopic
Hemoglobin protein width
roughly 5.5 nm
Approximate width of the oxygen-carrying protein in red blood cells.
microscopic
Ribosome diameter
20–30 nm
Typical ribosome diameter range; midpoint is used only to place the marker on the log axis.
microscopic
Influenza A virion diameter
80–120 nm
Reported size range for spherical/pleomorphic influenza A virions in the cited table.
microscopic
E. coli reference cell length
2 µm long
Length of the cylindrical reference E. coli cell described in the cited cell-size chapter.
microscopic
Human red blood cell mean diameter
mean diameter about 7.5 µm
Mean diameter of a normal human red blood cell in the cited clinical reference.
objects
Human hair width
80,000–100,000 nm
NIGMS comparison range for the width of a human hair.
objects
Table tennis ball diameter
40 mm diameter
Regulation table-tennis ball diameter in the cited ITTF equipment overview.
objects
U.S. Federal Reserve note long edge
6.14 × 2.61 in
Standardized long edge of current-size U.S. Federal Reserve notes.
objects
Table tennis table length
2.74 m long
Regulation table length in the cited ITTF equipment overview.
objects
Boeing 747-8 length
76.3 m (250 ft 2 in)
Published 747-8 length from Boeing’s size comparison.
objects
International Space Station array wingspan
356 ft (109 m)
NASA-reported span across the station’s solar array wings.
buildings
Statue of Liberty ground-to-flame height
305 ft 1 in (92.99 m)
Total height from ground to the tip of the flame.
buildings
Washington Monument height
555 ft 5 1/8 in
Published total height of the Washington Monument.
buildings
Gateway Arch maximum height
630 ft (192 m)
Published maximum height of the Gateway Arch.
buildings
Eiffel Tower current height
330 m
Current height after the 2022 DAB+ antenna installation.
buildings
Burj Khalifa height to tip
828 m (2,716.5 ft)
Final height to tip stated in the official fact sheet.
buildings
Golden Gate Bridge main span
4,200 ft
Main suspension span between the towers as described by NPS.
astronomical
Earth equatorial diameter
12,756 km
NASA’s published equatorial diameter for Earth.
astronomical
Jupiter equatorial diameter
about 142,984 km
NASA’s published equatorial diameter for Jupiter.
astronomical
Sun diameter
about 1.4 million km
NASA’s approximate diameter of the Sun.
astronomical
Earth–Moon average orbital distance
384,400 km average orbit distance
Average orbital distance between Earth and the Moon in NASA’s comparison.
astronomical
One astronomical unit
exactly 149,597,870,700 m
IAU-defined astronomical unit as reproduced by JPL Solar System Dynamics.
astronomical
Sun to Proxima Centauri distance
4.24 light-years
NASA’s approximate distance from the Sun to its nearest stellar neighbor, Proxima Centauri.
Connected ICU paths
Scale is already a language elsewhere in ICU.
ICUX-004 extends those routes instead of impersonating them.
Accessible evidence ledger
Every plotted value, in text.
The ledger is the semantic equivalent of the interactive plot and remains useful when JavaScript, media, or analytics are unavailable.
| Anchor | Group | Dimension kind | Source value | Uncertainty | Creator / institution | Source |
|---|---|---|---|---|---|---|
| DNA double helix width | microscopic | width | about 2 nm | about 2 nm | NIGMS / National Institute of General Medical Sciences (NIH) | Open source |
| Hemoglobin protein width | microscopic | width | roughly 5.5 nm | roughly 5.5 nm | NIGMS / National Institute of General Medical Sciences (NIH) | Open source |
| Ribosome diameter | microscopic | diameter | 20–30 nm | 20–30 nm | NIGMS / National Institute of General Medical Sciences (NIH) | Open source |
| Influenza A virion diameter | microscopic | diameter | 80–120 nm | 80–120 nm | Kohl et al., Emerging Infectious Diseases / Centers for Disease Control and Prevention | Open source |
| E. coli reference cell length | microscopic | length | 2 µm long | 2 µm | Harold P. Erickson / NCBI Bookshelf / National Academies | Open source |
| Human red blood cell mean diameter | microscopic | diameter | mean diameter about 7.5 µm | about 7.5 µm | E. C. Lynch / NCBI Bookshelf / U.S. National Library of Medicine | Open source |
| Human hair width | objects | width | 80,000–100,000 nm | 80–100 µm | NIGMS / National Institute of General Medical Sciences (NIH) | Open source |
| Table tennis ball diameter | objects | diameter | 40 mm diameter | 40 mm | ITTF / International Table Tennis Federation | Open source |
| U.S. Federal Reserve note long edge | objects | length | 6.14 × 2.61 in | 6.14 in | U.S. Currency Education Program / U.S. Currency Education Program / U.S. Department of the Treasury | Open source |
| Table tennis table length | objects | length | 2.74 m long | 2.74 m | ITTF / International Table Tennis Federation | Open source |
| Boeing 747-8 length | objects | length | 76.3 m (250 ft 2 in) | 76.3 m | Boeing / The Boeing Company | Open source |
| International Space Station array wingspan | objects | span | 356 ft (109 m) | 356 ft / 109 m | NASA / NASA | Open source |
| Statue of Liberty ground-to-flame height | buildings | height | 305 ft 1 in (92.99 m) | 305 ft 1 in / 92.99 m | National Park Service / U.S. National Park Service | Open source |
| Washington Monument height | buildings | height | 555 ft 5 1/8 in | 555 ft 5 1/8 in | National Park Service / U.S. National Park Service | Open source |
| Gateway Arch maximum height | buildings | height | 630 ft (192 m) | 630 ft (192 m) | National Park Service / U.S. National Park Service | Open source |
| Eiffel Tower current height | buildings | height | 330 m | 330 m | Official Eiffel Tower website / Société d’Exploitation de la Tour Eiffel | Open source |
| Burj Khalifa height to tip | buildings | height | 828 m (2,716.5 ft) | 828 m | Burj Khalifa / Emaar / Emaar Properties PJSC / Burj Khalifa | Open source |
| Golden Gate Bridge main span | buildings | span | 4,200 ft | 4,200 ft | National Park Service / U.S. National Park Service | Open source |
| Earth equatorial diameter | astronomical | diameter | 12,756 km | 12,756 km | NASA Science Editorial Team / NASA Science | Open source |
| Jupiter equatorial diameter | astronomical | diameter | about 142,984 km | about 142,984 km | NASA Science Editorial Team / NASA Science | Open source |
| Sun diameter | astronomical | diameter | about 1.4 million km | about 1.4 million km | NASA Science Editorial Team / NASA Science | Open source |
| Earth–Moon average orbital distance | astronomical | distance | 384,400 km average orbit distance | 384,400 km | NASA Science Editorial Team / NASA Science | Open source |
| One astronomical unit | astronomical | distance | exactly 149,597,870,700 m | 149,597,870.7 km | JPL Solar System Dynamics / NASA Jet Propulsion Laboratory / Solar System Dynamics | Open source |
| Sun to Proxima Centauri distance | astronomical | distance | 4.24 light-years | 4.24 light-years | NASA Science Editorial Team / NASA Science | Open source |
Truth boundary. This explorer compares sourced one-dimensional magnitudes. It does not infer size from photographs, convert area into length, rank importance by size, or treat original generated graphics as documentary evidence.
Source and rights records
Science Snippet: Zooming In on Nanoparticles — National Institute of General Medical Sciences (NIH)
Creator/institution: NIGMS / National Institute of General Medical Sciences (NIH)
Date / identifier: 2023-12 · NIGMS BioBeat 2023/12
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Take a Tour of Your Cells’ Organelles! — National Institute of General Medical Sciences (NIH)
Creator/institution: NIGMS / National Institute of General Medical Sciences (NIH)
Date / identifier: 2021-03 · NIGMS BioBeat 2021/03
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Protocol for Metagenomic Virus Detection in Clinical Specimens — Table 3 — Centers for Disease Control and Prevention
Creator/institution: Kohl et al., Emerging Infectious Diseases / Centers for Disease Control and Prevention
Date / identifier: 2015-01 · EID 21(1), Table 3
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
A Biophysical Chemist's Thoughts on Cell Size — NCBI Bookshelf / National Academies
Creator/institution: Harold P. Erickson / NCBI Bookshelf / National Academies
Date / identifier: 1999 · NBK224770
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Peripheral Blood Smear — Clinical Methods — NCBI Bookshelf / U.S. National Library of Medicine
Creator/institution: E. C. Lynch / NCBI Bookshelf / U.S. National Library of Medicine
Date / identifier: 1990 · NBK263, Chapter 155
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Table Tennis 101 — International Table Tennis Federation
Creator/institution: ITTF / International Table Tennis Federation
Date / identifier: 2021-07-22 · ITTF equipment and technical information
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
History of U.S. Currency — 1929 Standardization of Design — U.S. Currency Education Program / U.S. Department of the Treasury
Creator/institution: U.S. Currency Education Program / U.S. Currency Education Program / U.S. Department of the Treasury
Date / identifier: 1929 record; page reviewed 2026-09-12 · 1929 Standardization of Design
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
747-8 size comparison — The Boeing Company
Creator/institution: Boeing / The Boeing Company
Date / identifier: 2018 · 747-8I passenger size comparison
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
International Space Station Facts and Figures — NASA
Creator/institution: NASA / NASA
Date / identifier: 2024-07-16 page update · ISS Size & Mass / solar array wingspan
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Statue of Liberty Facts — U.S. National Park Service
Creator/institution: National Park Service / U.S. National Park Service
Date / identifier: 2026 page reviewed · Statue of Liberty National Monument facts
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Washington Monument — Frequently Asked Questions — U.S. National Park Service
Creator/institution: National Park Service / U.S. National Park Service
Date / identifier: page reviewed 2026-09-12 · Washington Monument height FAQ
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Gateway Arch Fact Sheet — U.S. National Park Service
Creator/institution: National Park Service / U.S. National Park Service
Date / identifier: page reviewed 2026-09-12 · Gateway Arch Fact Sheet
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
The Eiffel Tower grows again: 330 meters high — Société d’Exploitation de la Tour Eiffel
Creator/institution: Official Eiffel Tower website / Société d’Exploitation de la Tour Eiffel
Date / identifier: 2022-03-15 · 330 m antenna update
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Burj Khalifa Fact Sheet — Emaar Properties PJSC / Burj Khalifa
Creator/institution: Burj Khalifa / Emaar / Emaar Properties PJSC / Burj Khalifa
Date / identifier: fact sheet reviewed 2026-09-12 · Burj Khalifa Facts at a Glance
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
How Long is the Golden Gate Bridge? — U.S. National Park Service
Creator/institution: National Park Service / U.S. National Park Service
Date / identifier: page reviewed 2026-09-12 · Golden Gate Bridge 4,200 ft span
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Facts About Earth — NASA Science
Creator/institution: NASA Science Editorial Team / NASA Science
Date / identifier: 2025-12 page version / reviewed 2026-09-12 · Earth size and distance
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Planet Sizes and Locations in Our Solar System — NASA Science
Creator/institution: NASA Science Editorial Team / NASA Science
Date / identifier: 2025 page version / reviewed 2026-09-12 · Planet size reference
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Sun: Facts — NASA Science
Creator/institution: NASA Science Editorial Team / NASA Science
Date / identifier: 2025 page version / reviewed 2026-09-12 · Sun size and stellar-neighbor reference
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
Compare Earth and the Moon — By the Numbers — NASA Science
Creator/institution: NASA Science Editorial Team / NASA Science
Date / identifier: 2026 page version / reviewed 2026-09-12 · Earth–Moon average orbit distance
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record
au (astronomical unit) — Glossary — NASA Jet Propulsion Laboratory / Solar System Dynamics
Creator/institution: JPL Solar System Dynamics / NASA Jet Propulsion Laboratory / Solar System Dynamics
Date / identifier: reviewed 2026-09-12 · IAU-defined astronomical unit
Rights basis: Reference citation only; no source text, image, audio, or other media is redistributed in this experience.
Reviewed: 2026-09-12
Open source record