1 E-10 m facts for kids
To help compare different orders of magnitude this page lists lengths between 10−10 m and 10−9 m (100 pm and 1 nm).
- 100 pm — 1 ångström
- 100 pm — covalent radius of sulfur atom
- 120 pm — van der Waals radius of a neutral hydrogen atom
- 126 pm — covalent radius of ruthenium atom
- 135 pm — covalent radius of technetium atom
- 153 pm — covalent radius of silver atom
- 154 pm — mode length of (C-C) covalent bond
- 155 pm — covalent radius of zirconium atom
- 175 pm — covalent radius of thulium atom
- 200 pm — highest resolution of a typical electron microscope
- 225 pm — covalent radius of caesium atom
- 340 pm — thickness of single layer graphene
- 356.68 pm — width of diamond cell (unit cell)
- 403 pm — width of lithium fluoride cell
- 500 pm — width of α helix protein
- 560 pm — width of sodium chloride cell
- 700 pm — width of glucose molecule
- 780 pm — mean width of quartz cell
- 820 pm — mean width of ice cell
- 900 pm — mean width of coesite cell
- 900 pm — width of sucrose molecule
Images for kids
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A paramecium is around 300 μm long.
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An average red ant is about 5 mm long.
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An average human fingernail is about 1 cm wide.
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An adult human foot is about 28 centimetres long.
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A blue whale has been measured as 33 metres long; this drawing compares its length to that of a human diver and a dolphin
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Mount Fuji is 3.776 kilometres (3,776 metres) high
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The Strait of Gibraltar is 13 kilometres wide
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Distance marker on the Rhine: 36 (XXXVI) myriametres from Basel. The stated distance is 360 km; comma is the decimal separator in Germany.
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The Suez Canal is 163 kilometres long
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From largest to smallest: Jupiter's orbit, red supergiant star Betelgeuse, Mars' orbit, Earth's orbit, star R Doradus, and orbits of Venus, Mercury. Inside R Doradus' depiction are the blue giant star Rigel and red giant star Aldebaran. The faint yellow glow around the Sun represents one light minute. Click image to see more details and links to their scales.
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Sedna's orbit (left) is longer than 100 Tm, but other lengths are between 10 and 100 Tm: Comet Hale-Bopp's orbit (lower, faint orange); one light-day (yellow spherical shell with yellow Vernal point arrow as radius); the heliosphere's termination shock (blue shell); and other arrows show positions of Voyager 1 (red) and Pioneer 10 (green). Click on image for larger view and links to other scales.
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Largest circle with yellow arrow indicates one light year from Sun; Cat's Eye Nebula on left and Barnard 68 in middle are depicted in front of Comet 1910 A1's orbit. Click image for larger view, details and links to other scales.
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Lengths with order of magnitude 1e17m: yellow Vernal Point arrow traces hundred light year radius circle with smaller ten light year circle at right; globular cluster Messier 5 in background; 12 light year radius Orion Nebula middle right; 50 light year wide view of the Carina Nebula bottom left; Pleiades cluster and Bubble nebula with similar diameters each around 10 light years bottom right; grey arrows show distances from Sun to stars Aldebaran (65 light years) and Vega (25 light years).
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Lengths with order of magnitude 1e18m: thousand light year radius circle with yellow arrow and 100 light year circle at right with globular cluster Messier 5 within and Carina Nebula in front; globular cluster Omega Centauri to left of both; part of the 1400 light year wide Tarantula Nebula fills the background.
