A common factor, two references
Compare.
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Diameters, altitudes or lengths: each comparison states what is measured. The scale remains common even when the smaller object becomes almost invisible.
Kola compared with Earth
What does 12.3 km represent at Earth’s scale?
Two metres of DNA compared with a cell
How much length do we get by unfolding nuclear DNA?
TON 618 compared with Neptune’s orbit
How does a model horizon compare with planetary orbits?
Core i9 and Intel 4004: package versus silicon die
Can we compare the Core i9’s 45 mm with the Intel 4004’s 4 mm?
Intel 8086 and a 50-micrometre RFID chip: a length ratio of 120
How can a complete chip be 120 times shorter than an Intel 8086?
Bonding wire and hair: comparing two diameters
Is a chip’s bonding wire thinner than a hair?
Silicon line and virus: what does 150 nanometres mean?
Can a circuit’s design width be comparable with a virus?
Transistor gate and DNA: two diameters of a few nanometres
What does the nanometre in a laboratory transistor actually measure?
Earth and Moon: a size comparison
How many times larger is Earth than the Moon?
Sun and Earth: comparing diameter and volume
How many Earths fit in the Sun?
Jupiter and Earth: comparing diameters
How large is Jupiter compared with Earth?
Mars and Earth: a size comparison
Is Mars smaller than Earth?
Neptune and Earth: comparing diameters
How many Earth diameters make up Neptune’s diameter?
Saturn and Jupiter: the sizes of two giants
Is Jupiter larger than Saturn?
Proxima Centauri and Sun: size and distance
Why does Proxima appear before the Sun?
Mont Ventoux and Everest: comparing altitudes
How many times Ventoux’s altitude does Everest reach?
Eiffel Tower and human: putting 330 metres in perspective
How many human heights equal the Eiffel Tower?
Giraffe and human: comparing heights
How many times taller is a giraffe than a human?
Virus and bacterium: comparing T4 and E. coli
What is the size difference between a virus and a bacterium?
Hair and red blood cell: comparing two diameters
How many red blood cell diameters make up a hair’s diameter?
Nile and Amazon: comparing lengths without a false record
Is the Nile longer than the Amazon?
Rhône and Seine: a length comparison
Is the Rhône longer than the Seine?
Loire and Rhône: comparing watercourses
How does the Loire’s length compare with the Rhône’s?
Danube and Loire: a length comparison
How many times the Loire’s length is the Danube?
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How Big
Source coverage: Interpreted illustration; only the designated dimension is calibrated.
Natural Earth (public domain)
Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.
Natural Earth (public domain)
Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.
Natural Earth (public domain)
Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.
Natural Earth (public domain)
Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.
Natural Earth (public domain)
Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.
Natural Earth (public domain)
Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.