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Orders of magnitude (mass)

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This is an old revision of this page, as edited by Retodon8 (talk | contribs) at 08:42, 19 August 2013 (→below 10−24 kg: Corrected "lbs." -> "lb"). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Iron weights up to 50 kilograms depicted in Dictionnaire encyclopédique de l'épicerie et des industries annexes.

To help compare different orders of magnitude, the following lists describe various mass levels between 10−40 kg and ∞ kg.

Units of mass

SI multiples of gram (g)
Submultiples Multiples
Value SI symbol Name Value SI symbol Name
10−1 g dg decigram 101 g dag decagram
10−2 g cg centigram 102 g hg hectogram
10−3 g mg milligram 103 g kg kilogram
10−6 g μg 'microgram (mcg)' 106 g Mg megagram (tonne)
10−9 g ng nanogram 109 g Gg gigagram
10−12 g pg picogram 1012 g Tg teragram
10−15 g fg femtogram 1015 g Pg petagram
10−18 g ag attogram 1018 g Eg exagram
10−21 g zg zeptogram 1021 g Zg zettagram
10−24 g yg yoctogram 1024 g Yg yottagram
10−27 g rg rontogram 1027 g Rg ronnagram
10−30 g qg quectogram 1030 g Qg quettagram
Common prefixes are in bold face.[1]

The table below is based on the kilogram (kg), the base unit of mass in the International System of Units (SI). The kilogram is the only standard unit to include an SI prefix (kilo-) as part of its name. The gram (10−3 kg) is an SI derived unit of mass. However, the names of all SI mass units are based on gram, rather than on kilogram; thus 103 kg is a megagram (106 g), not a "kilokilogram".

The tonne (t) is a SI-compatible unit of mass equal to a megagram, or 103 kg. The unit is in common use for masses above about 103 kg and is often used with SI prefixes.

Other units

Other units of mass are in use. Historical units include the stone, the pound, the carat and the grain.

For subatomic particles, physicists use the mass equivalent to the energy represented by an electron Volt (eV). At the atomic level, chemists use the mass of one-twelfth of a carbon-12 atom (the dalton). Astronomers use the mass of the sun .

below 10−24 kg

Unlike other physical quantities, mass-energy does not have an a priori expected minimal quantity, as is the case with time or length, or an observed basic quantum as in the case of electric charge. Planck's law allows for the existence of photons with arbitrarily low energies. Consequently, there can only ever be an experimental lower bound on the mass of a supposedly massless particle; in the case of the photon, this confirmed lower bound is of the order of 3×10−27 eV = 10−62 kg.

Factor (kg) Value Pounds Item
10−40 4.2×10−40 kg 9.25×10−40 lb Mass equivalent of the energy of a photon at the peak of the spectrum of the cosmic microwave background radiation (0.235 meV/c2)[citation needed]
10−36 1.8×10−36 kg 3.96×10−36 lb One eV/c2, the mass equivalent of one electronvolt[2]
3.6×10−36 kg 7.93×10−36 lb Electron neutrino, upper limit on mass (2 eV/c2)[3]
10−31 9.11×10−31 kg 2.00×10−30 lb Electron (511 keV/c2), the lightest elementary particle with a measured nonzero rest mass[4]
10−30 3.0–5.5×10−30 kg. 6.61×10−30-1.21×10−29 lb Up quark (as a current quark) (1.7–3.1 MeV/c2)[5]
10−28 1.9×10−28 kg 4.18×10−28 lb Muon (106 MeV/c2)[6]
10−27
yoctogram (yg) 		1.661×10−27 kg 3.661×10−27 lb Atomic mass unit (u) or dalton (Da)
1.673×10−27 kg 3.688×10−27 lb Proton (938.3 MeV/c2)[7][8]
1.674×10−27 kg 3.690×10−27 lb Hydrogen atom, the lightest atom
1.675×10−27 kg 3.692×10−27 lb Neutron (939.6 MeV/c2)[9][10]
10−26 1.2×10−26 kg 2.6×10−26 lb Lithium atom (6.941 u)
3.0×10−26 kg 6.6×10−26 lb Water molecule (18.015 u)
8.0×10−26 kg 1.7×10−25 lb Titanium atom (47.867 u)
10−25 1.1×10−25 kg 2.4×10−25 lb Copper atom (63.546 u)
1.6×10−25 kg 3.5×10−25 lb Z boson (91.2 GeV/c2)[11]
3.1×10−25 kg 6.8×10−25 lb Top quark (173 GeV/c2),[12] the heaviest known elementary particle
3.2×10−25 kg 7.0×10−25 lb Caffeine molecule (194 u)
3.5×10−25 kg 7.7×10−25 lb Lead-208 atom, the heaviest stable isotope known

10−24 to 10−19 kg

Factor (kg) Value Item
10−24
zeptogram (zg) 		1.2×10−24 kg Buckyball molecule (720 u)
10−23 1.4×10−23 kg Ubiquitin, a small protein (8.6 kDa)[13]
5.5×10−23 kg A typical protein (median size of roughly 300 amino acids ~= 33 kDa)[14]
10−22 1.1×10−22 kg Haemoglobin A molecule in blood (64.5 kDa)[15]
10−21
attogram (ag) 		1.65×10−21 kg Double-stranded DNA molecule consisting of 1,578 base pairs (995,000 daltons)[16]
4.3×10−21 kg Prokaryotic ribosome (2.6 MDa)[17]
7.1×10−21 kg Eukaryotic ribosome (4.3 MDa)[17]
7.6×10−21 kg Brome mosaic virus, a small virus (4.6 MDa)[18]
10−20 3×10−20 kg Synaptic vesicle in rats (16.1 ± 3.8 MDa)[19]
6.8×10−20 kg Tobacco mosaic virus (41 MDa)[20]
10−19 1.1×10−19 kg Nuclear pore complex in yeast (66 MDa)[21]
2.5×10−19 kg Human adenovirus (150 MDa)[22]

10−18 to 10−13 kg

Factor (kg) Value Item
10−18
femtogram (fg) 		1×10−18 kg HIV-1 virus[23][24]
4.7×10−18 kg DNA sequence of length 4.6 Mbp, the length of the E. coli genome[25]
10−17 ~1×10−17 kg Vaccinia virus, a large virus[26]
1.1×10−17 kg Mass equivalent of 1 joule[27]
10−16 3×10−16 kg Prochlorococcus cyanobacteria, the smallest (and possibly most plentiful)[28] photosynthetic organism on Earth[29][30]
10−15
picogram (pg) 		1×10−15 kg E. coli bacterium (wet weight)[31]
6×10−15 kg DNA in a typical diploid human cell (approximate)
10−14 2.2×10−14 kg Human sperm cell[30][32]
6×10−14 kg Yeast cell (quite variable)[33][34]
10−13 1.5×10−13 kg Dunaliella salina, a green algae (dry weight)[35]

10−12 to 10−7 kg

Factor (kg) Value Item
10−12
nanogram (ng) 		1×10−12 kg Average human cell (1 nanogram)[36]
2–3×10−12 kg HeLa human cell[37][38]
8×10−12 kg Grain of birch pollen[39]
10−11    
10−10 2.5×10−10 kg Grain of maize pollen[40]
3.5×10−10 kg Very fine grain of sand (0.063 mm diameter, 350 nanograms)
10−9
microgram (µg) 		3.6×10−9 kg Human ovum[30][41]
2.4×10−9 kg US RDA for vitamin B12 for adults[42]
10−8 1.5×10−8 kg US RDA for vitamin D for adults[43]
~2×10−8 kg Uncertainty in the mass of the International Prototype Kilogram (IPK) (±~20 µg)[citation needed]
2.2×10−8 kg Planck mass[44]
~7×10−8 kg One eyebrow hair (approximate)[45]
10−7 1.5×10−7 kg US RDA for iodine for adults[46]
2–3×10−7 kg Fruit fly (dry weight)[47][48]

10×10−6 to 1 kg

Factor (kg) Value Item
10−6
milligram (mg) 		2.5×10−6 kg Mosquitoes, common smaller species (about 2.5 milligrams)[49]
10−5
centigram (cg) 		1.1×10−5 kg Small granule of quartz (2 mm diameter, 11 milligrams)[50]
2×10−5 kg Adult housefly (Musca domestica, 21.4 milligrams)[51]
10−4
decigram (dg) 		0.27–2.0×10−4 kg Range of amounts of caffeine in one cup of coffee (27–200 milligrams)[52]
2×10−4 kg Metric carat (200 milligrams)[53]
10−3
gram (g) 		1×10−3 kg One cubic centimeter of water (1 gram)[54]
1×10−3 kg US dollar bill (1 gram)[55]
~1×10−3 kg Two raisins (approximately 1 gram)[56]
8×10−3 kg Coins of one Euro (7.5 grams)[57] and one U.S. dollar (8.1 grams)[58]
10−2
decagram (dag) 		2–4×10−2 kg Adult mouse (Mus musculus, 20–40 grams)[59]
1.37×10−2 kg Amount of ethanol defined as one standard drink in the U.S. (13.7 grams)[60]
2.8×10−2 kg Ounce (avoirdupois) (28.35 grams)[53]
4.7×10−2 kg Mass equivalent of the energy that is called 1 megaton of TNT equivalent[53][61]
10−1
hectogram   (hg) 		0.1-0.2 kg An orange (100–200 grams)[62]
0.454 kg Pound (avoirdupois) (454 grams)[53]

1 kg to 105 kg

Factor (kg) Value Item
1 kg
kilogram (kg) 		1 kg One litre (0.001 m3) of water[63]
1–3 kg Smallest breed of dog (Chihuahua)[64]
1–3 kg Typical laptop computer, 2010[65]
2.5–4 kg Newborn human baby[66]
4.0 kg Women's shot[67]
4–5 kg Housecat[citation needed]
7.26 kg Men's shot[67]
101 9–27 kg Medium-sized dog[68][69][70]
10–30 kg A CRT computer monitor or television set[citation needed]
70 kg Adult human[71]
70 kg Large dog[citation needed]
102 130–180 kg Mature lion, female (130 kg) and male (180 kg)[72]
240–450 kg Grand piano[73][74]
400–900 kg Dairy cow[75]
500-500,000 kg A teaspoon (5 ml) of white dwarf material (0.5–500 tonnes)[76][77]
907.2 kg 1 short ton (2000 pounds - U.S.)[53]
103
megagram (Mg) 		1000 kg Metric ton/tonne[53]
1000 kg 1 cubic metre of water[63]
1016.05 kg Ton (British) / 1 long ton (2240 pounds - U.S.)[53]
800–1600 kg Typical passenger cars[citation needed]
3000–7000 kg Adult elephant[citation needed]
104 1.1×104 kg Hubble Space Telescope (11 tonnes)[78]
1.2×104 kg Largest elephant on record (12 tonnes)[citation needed]
1.4×104 kg Big Ben (bell) (14 tonnes)[79]
4×104 kg Maximum gross mass (truck + load combined) of a semi-trailer truck in the EU (40–44 tonnes)[80]
6.0×104 kg Largest single-piece meteorite, Hoba West Meteorite (60 tonnes)[81]
7.3×104 kg Largest dinosaur, Argentinosaurus (73 tonnes)[82]
105 1.8×105 kg Largest animal ever, a blue whale (180 tonnes)[83]
4.2×105 kg International Space Station (417 tonnes)[84]
6×105 kg World's heaviest aircraft: Antonov An-225 (maximum take-off mass: 600 tonnes, payload: 250 tonnes)[85]

106 to 1011 kg

Factor (kg) Value Item
106
gigagram (Gg) 		1×106 kg Trunk of the giant sequoia tree named General Sherman, largest living tree by trunk volume (1121 tonnes)[86]
2.0×106 kg Launch mass of the Space Shuttle (2041 tonnes)[87]
6×106 kg Largest clonal colony, the quaking aspen named Pando (largest living organism) (6000 tonnes)[88]
7.8×106 kg Virginia-class nuclear submarine (submerged weight)[89]
107 1×107 kg Annual production of Darjeeling tea[90]
5.2×107 kg RMS Titanic when fully loaded (52,000 tonnes)[91]
9.97×107 kg Heaviest train ever: Australia's BHP Iron Ore, 2001 record (99,700 tonnes)[92]
108 6.6×108 kg Largest ship and largest mobile man-made object, Seawise Giant, when fully loaded (660,000 tonnes)[93]
109
teragram (Tg) 		4.3×109 kg Amount of matter converted into energy by the Sun each second[94]
6×109 kg Great Pyramid of Giza[95]
1010
 6×1010 kg Amount of concrete in the Three Gorges Dam, the world's largest concrete structure[96][97]
1011 ~1×1011 kg The mass of a primordial black hole with an evaporation time equal to the age of the universe[98]
2×1011 kg Amount of water stored in London storage reservoirs (0.2 km3)[99]
4×1011 kg Total mass of the human world population[71][100][101]
5×1011 kg Total biomass of Antarctic krill, probably the most plentiful animal species on the planet[102]

1012 to 1017 kg

Factor (kg) Value Item
1012
petagram (Pg) 		0.8–2.1×1012 kg Global biomass of fish[103]
4×1012 kg World crude oil production in 2009 (3,843 Mt)[104]
5.5×1012 kg A teaspoon (5 ml) of neutron star material (5000 million tonnes)[105]
1013 1–100×1013 kg A 1–5 km tall mountain (very approximate)[106]
1014 1.05×1014 kg Global net primary production – the total mass of carbon fixed in organic compounds by photosynthesis each year on Earth[107]
7.2×1014 kg Total carbon stored in Earth's atmosphere[108]
1015
exagram (Eg) 		2.0×1015 kg Total carbon stored in the terrestrial biosphere[109]
3.5×1015 kg Total carbon stored in coal deposits worldwide[110]
1016 1×1016 kg 951 Gaspra, the first asteroid ever to be closely approached by a spacecraft (rough estimate)[111]
1×1016 kg Rough estimate of the total carbon content of all organisms on Earth. [112]
3.8×1016 kg Total carbon stored in the oceans. [113]
1017 1.6×1017 kg Prometheus, a shepherd satellite for the inner edge of Saturn's F Ring[114]

1018 to 1023 kg

Factor (kg) Value Item
1018
zettagram (Zg) 		5.1×1018 kg Earth's atmosphere[115]
5.6×1018 kg Hyperion, a moon of Saturn[114]
1019 3×1019 kg 3 Juno, one of the larger asteroids in the asteroid belt[116]
3×1019 kg The rings of Saturn[117]
1020 9.4×1020 kg Ceres, dwarf planet within the asteroid belt[118]
1021
yottagram (Yg) 		1.4×1021 kg Earth's oceans[119]
1.5×1021 kg Charon, the largest moon of Pluto[120]
2.9–3.7×1021 kg The asteroid belt[121]
1022 1.3×1022 kg Pluto[120]
2.1×1022 kg Triton, largest moon of Neptune[122]
7.3×1022 kg Earth's Moon[123]
1023 1.3×1023 kg Titan, largest moon of Saturn[124]
1.5×1023 kg Ganymede, largest moon of Jupiter[125]
3.3×1023 kg Mercury[126]
6.4×1023 kg Mars[127]

1024 to 1029 kg

Factor (kg) Value Item
1024 4.9×1024 kg Venus[128]
6.0×1024 kg Earth[129]
1025 3×1025 kg Oort cloud[130]
8.7×1025 kg Uranus[131]
1026 1.0×1026 kg Neptune[132]
5.7×1026 kg Saturn[133]
1027 1.9×1027 kg Jupiter[134]
1028 2–14×1028 kg Brown dwarfs (approximate)[135]
1029 3×1029 kg Barnard's Star, a nearby red dwarf[136]

1030 to 1035 kg

Factor (kg) Value Item
1030 2×1030 kg The Sun[137] (one solar mass or M☉ = 1.989×1030 kg)
2.8×1030 kg Chandrasekhar limit (1.4 M☉)[138][139]
1031 4×1031 kg Betelgeuse, a red supergiant star (20 M☉)[140]
1032 2–3×1032 kg Pistol Star, one of the most massive known stars (100[141] to 150[142] M☉)
6–8×1032 kg Hyades star cluster (300 to 400 M☉)[143]
1033 1.6×1033 kg Pleiades star cluster (800 M☉)[144]
1034
1035 ~1035 kg Typical globular cluster in the Milky Way (overall range: 3×103 to 3×106 M☉)[145]
2×1035 kg Low end of mass range for giant molecular clouds (1×105 to 1×107 M☉)[146][147]
7.3×1035 kg Jeans mass of a giant molecular cloud at 100K and density 30 atoms per cc;[148]
possible example: Orion Molecular Cloud Complex

1036 to 1041 kg

Factor (kg) Value Item
1036 2.4×1036 kg The Gould Belt of stars, including the Sun (1.2×106 M☉)[149]
7–8×1036 kg The supermassive black hole at the center of the Milky Way, associated with the radio source Sagittarius A* (3.7±0.2×106 M☉)[150]
1037    
1038    
1039    
1040 4.17×1040 kg NGC 4889, the largest measured supermassive black hole, weighing in at 21 billion solar masses (2.1×1010 M☉)
1041 4×1041 kg Visible mass of the Milky Way galaxy[151]

1042 kg and greater

Factor (kg) Value Item
1042 1.2×1042 kg Milky Way galaxy (5.8×1011 M☉)[152]
2–3×1042 kg Local Group of galaxies, including the Milky Way (1.29±0.14×1012 M☉)[152]
1043    
1044    
1045 1–2×1045 kg Local or Virgo Supercluster of galaxies, including the Local Group (1×1015 M☉)[153]
1046    
1047    
1048    
1049    
1050    
1051    
1052 6×1052 kg Mass of the observable universe[154]
∞ ∞ kg. The mass of a Black hole's singularity.

This series on orders of magnitude does not have a range of larger masses

Notes

  1. ^ Criterion: A combined total of at least 250,000 Google hits on both the modern spelling (‑gram) and the traditional British spelling (‑gramme). 
  2. ^ "Conversion from eV to kg". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-10-19.
  3. ^ "The most sensitive analysis on the neutrino mass [...] is compatible with a neutrino mass of zero. Considering its uncertainties this value corresponds to an upper limit on the electron neutrino mass of m<2.2 eV/c2 (95% Confidence Level)" The Mainz Neutrino Mass Experiment
  4. ^ "CODATA Value: electron mass". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-08-21.
  5. ^ K. Nakamura et al. (Particle Data Group) (2011). "PDGLive Particle Summary 'Quarks (u, d, s, c, b, t, b', t', Free)'" (PDF). Particle Data Group. Retrieved 2011-08-08.
  6. ^ "CODATA Value: muon mass". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-08-23.
  7. ^ "CODATA Value: proton mass". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-08-23.
  8. ^ "CODATA Value: proton mass energy equivalent in MeV". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-08-23.
  9. ^ "CODATA Value: neutron mass". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-08-23.
  10. ^ "CODATA Value: neutron mass energy equivalent in MeV". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-08-23.
  11. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1016/j.physletb.2008.07.018 , please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1016/j.physletb.2008.07.018 instead.
  12. ^ K. Nakamura et al. (Particle Data Group) (2011). "PDGLive Particle Summary 'Quarks (u, d, s, c, b, t, b', t', Free)'" (PDF). Particle Data Group. Retrieved 2011-08-08.
  13. ^ "Ubiquitin". Channel Proteomes. Retrieved 2011-10-12.
  14. ^ Ron Milo. "How big is the "average" protein?" (PDF). Retrieved 2011-10-13.
  15. ^ Van Beekvelt MC, Colier WN, Wevers RA, Van Engelen BG (2001). "Performance of near-infrared spectroscopy in measuring local O2 consumption and blood flow in skeletal muscle". J Appl Physiol. 90 (2): 511–519. ISSN 8750-7587. PMID 11160049. {{cite journal}}: Invalid |ref=harv (help); Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  16. ^ From attograms to Daltons: Cornell NEMS device detects the mass of a single DNA molecule [1]. Retrieved 2010-10-14
  17. ^ a b "Eukaryotic Ribosome". ETH Zurich. Retrieved 2011-10-09.
  18. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1016/S0006-3495(62)86836-2 , please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1016/S0006-3495(62)86836-2 instead.
  19. ^ "Atomic mass of synaptic vesicle - Rat Rattus". BioNumbers. Retrieved 2011-10-09.
  20. ^ "Molecular weight - Tobacco mosaic virus (TMV) - BNID 105958". BioNumbers. Retrieved 2011-10-09.
  21. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1083/jcb.123.4.771, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1083/jcb.123.4.771 instead.
  22. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1126/science.1187433, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1126/science.1187433 instead.
  23. ^ "Virus diameter of HIV-1 - HIV". BioNumbers. Retrieved 2011-11-01.
  24. ^ Calculated : volume = 4/3 × π × (126e−9 m / 2)³ = 1.05e−21 m³. Assume density = 1 g/cm³ => mass = 1.05e−21 m³ × 1e3 kg/m³ = 1.05e−18 kg
  25. ^ Frederick R. Blattner, Guy Plunkett III; et al. (1997). "The Complete Genome Sequence of Escherichia coli K-12". Science. 277 (5331): 1453–1462. doi:10.1126/science.277.5331.1453. PMID 9278503. {{cite journal}}: Explicit use of et al. in: |author= (help)
  26. ^ "Mass of virion - Virus Vaccinia". BioNumbers. Retrieved 2011-11-01.
  27. ^ "Conversion from J to kg". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-08-23.
  28. ^ "Prochlorococcus marinus MIT 9313 - Home". Joint Genome Institute. Retrieved 2011-11-01.
  29. ^ "Size (diameter) of most abundant cyanobacteri - Prochlorococcus - BNID 101520". BioNumbers. Retrieved 2011-11-01.
  30. ^ a b c Mass calculated from volume assuming density of 1 g/mL
  31. ^ "E. coli Statistics". The CyberCell Database. Retrieved 2011-09-11.
  32. ^ "Surface area and volume of spermatozoa - Human Homo sapiens". BioNumbers. Retrieved 2011-11-01.
  33. ^ Ron Milo. "How big is a yeast cell and what is it's mass" (PDF). Retrieved 2011-10-09.
  34. ^ ""Rule of thumb" for cell mass". BioNumbers. Retrieved 2011-10-09.
  35. ^ "Cell dry weight - Green algae Dunaliella salina". BioNumbers. Retrieved 2011-10-14.
  36. ^ "A quick introduction to elements of biology - cells, molecules, genes, functional genomics, microarrays". European Bioinformatics Institute}. if we estimate the average weight of a human cell as about 10^-9 g
  37. ^ "Measured HeLa cell mass". BioNumbers. Retrieved 2011-10-09.
  38. ^ "Estimated HeLa cell mass". BioNumbers. Retrieved 2011-10-09.
  39. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1016/S0091-6749(97)70170-2, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1016/S0091-6749(97)70170-2 instead. "the total pollen grain mass of approximately 7.85 ng"
  40. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1094/CM-2003-0804-01-RS, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1094/CM-2003-0804-01-RS instead. "The dry weight of individual pollen grains has been estimated at 250 ng"
  41. ^ "Volume of human oocyte - Human Homo sapiens". BioNumbers. Retrieved 2011-11-01.
  42. ^ "Dietary Supplement Fact Sheet: Vitamin B12". Office of Dietary Supplements. Retrieved 2011-10-02.
  43. ^ "Dietary Supplement Fact Sheet: Vitamin D". Office of Dietary Supplements. Retrieved 2011-10-02.
  44. ^ "CODATA Value: Planck mass". The NIST Reference on Constants, Units, and Uncertainty. NIST. Retrieved 2011-09-30.
  45. ^ "Weigh An Eyelash". National Semiconductor. Retrieved 2011-10-02.
  46. ^ "Dietary Supplement Fact Sheet: Iodine". Office of Dietary Supplements. Retrieved 2011-10-02.
  47. ^ "Mean dry mass (male) - Fruit fly". BioNumbers. Retrieved 2011-10-14.
  48. ^ "Mean dry mass (female) - Fruit fly". BioNumbers. Retrieved 2011-10-14.
  49. ^ "Frequently Asked Questions". American Mosquito Control Association. Retrieved 2011-08-23. Smaller species found around houses commonly weigh about 2.5 milligrams.
  50. ^ Quartz has a density of 2.65. Mass = Volume × Density = (4/3 × π × (1e−3 m)³) × (2.65 × 1e3 kg/m³) = 1.1e−5 kg.
  51. ^ Price, G. M. (1961). "Some Aspects of Amino Acid Metabolism in the Adult Housefly, Musca domestica". Biochem. J. 80 (2): 420. PMC 1244018. PMID 16748919.
  52. ^ "Caffeine content for coffee, tea, soda and more". Mayo Clinic. Retrieved 2011-08-23.
  53. ^ a b c d e f g "Appendix B8—Factors for Units Listed Alphabetically". NIST Guide for the Use of the International System of Units (SI). NIST. Retrieved 29 October 2011.
  54. ^ "Mass, Weight, Density or Specific Gravity of Water at Various Temperatures". SiMetric. Retrieved 13 December 2011.
  55. ^ "FAQ Library". U.S. Bureau of Engraving and Printing. Retrieved 2011-08-21.
  56. ^ "Raisins, seedless (NDB No. 09298)". USDA Nutrient Database. USDA. Retrieved 2011-10-19.
  57. ^ "Denominations and technical specifications of Euro coins". Retrieved 2013-06-22. weight (g): 7.5
  58. ^ "Coin specifications". United States Mint. Retrieved 2011-08-23.
  59. ^ "Biomethodology of the Mouse". Animal Research, The University of Iowa. Retrieved 2011-10-17.
  60. ^ "Alcohol and Public Health: Frequently Asked Questions". CDC. Retrieved 2011-08-23.
  61. ^ Calculated: 1e6 tons of TNT-equivalent × 4.184e9 J/ton of TNT-equivalent × 1.1e−17 kg of mass-equivalent/J = 4.7e−2 kg of mass-equivalent
  62. ^ "Oranges, raw, with peel (NDB No. 09205 and 09200)". USDA Nutrient Database. USDA. Retrieved 2011-10-18.
  63. ^ a b "Water - Density and Specific Weight". The Engineering Tool Box.
  64. ^ "Chihuahua Weight Chart". Retrieved 14 December 2011. 907 gms ... 2722 gms
  65. ^ "Laptop Buyer's Guide". About.com. Retrieved 14 December 2011. 2.0 lbs ... > 6 lbs
  66. ^ "Baby birth weight Information". Retrieved 14 December 2011. 2500 g ... 4000 g
  67. ^ a b "Shot Put - Introduction". IAAF. Retrieved 12 December 2011.
  68. ^ "Search for Medium Dogs By Looking at Pictures, Dogs that Can get to 20-50 Pounds". Retrieved 2 July 2013. Roughly ranging from 20-50 pounds (9-23 kg)
  69. ^ "Dog Services - Adoptable Dogs". Retrieved 2 July 2013. medium (30lbs to 60lbs)
  70. ^ "Dog Groups - Medium Sized Dogs - Only Dog Breeds". Retrieved 2 July 2013. 25 to 50 pounds
  71. ^ a b "Mass of an Adult". The Physics Factbook. Retrieved 13 December 2011. 70 kg
  72. ^ Nowell, Kristin; Jackson, Peter (1996). "Panthera Leo". Wild Cats: Status Survey and Conservation Action Plan (PDF). Gland, Switzerland: IUCN/SSC Cat Specialist Group. p. 17. ISBN 2-8317-0045-0. adult males (>4 years) 181 kg (n=14) and females 126 kg (n=25){{cite book}}: CS1 maint: multiple names: authors list (link)
  73. ^ "GRAND PIANO GUIDE TO STEINWAY AND INDUSTRY STANDARD SIZES". Bluebook of Pianos. Retrieved 13 December 2011. 540 lbs ... 990 lbs
  74. ^ Calculated: 540 lbs × 0.4536 kg/lb = 240 kg. 990 lb × 0.4536 kg/lb = 450 kg.
  75. ^ "Cow (Cattle) breed comparisons". Retrieved 14 December 2011.
  76. ^ Jennifer Johnson. "Lecture 22: Extreme Stars: White Dwarfs & Neutron Stars". Ohio State Department of Astronomy. Retrieved 2011-10-17.
  77. ^ Using the quoted density of 1e5 to 1e8 kg/m³ for white dwarf material, 1 teaspoon = 5mL = 5e−3 m³ has a calculated mass of: Low end: 5e−3 m³ × 1e5 kg/m³ = 5e2 kg High end: 5e−3 m³ × 1e8 kg/m³ = 5e5 kg
  78. ^ "Solar System Exploration: Hubble Space Telescope". NASA. Retrieved 2011-08-23.
  79. ^ "The Story of Big Ben". Whitechapel Bell Foundry. Retrieved 2011-10-17.
  80. ^ "Council Directive 96/53/EC of 25 July 1996" (PDF). p. 12. Retrieved 2011-10-18.
  81. ^ Meteoritical Bulletin Database: Hoba
  82. ^ Mazzetta, Gerardo V. (2004). "Giants and Bizarres: Body Size of Some Southern South American Cretaceous Dinosaurs" (PDF). Historical Biology. 16: 71–83. doi:10.1080/08912960410001715132. Retrieved 2009-01-23. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  83. ^ "What is the biggest animal ever to exist on Earth?". How Stuff Works. Retrieved 2011-10-17.
  84. ^ "International Space Station: The ISS to Date". NASA. Retrieved 2011-08-23.
  85. ^ Greg Goebel. "The Antonov Giants: An-22, An-124, & An-225". Air Vectors. Retrieved 2011-10-17.
  86. ^ Fry, Walter; White, John Roberts (1942). Big Trees. Palo Alto, California: Stanford University Press.
  87. ^ "Space Shuttle Basics". NASA. Retrieved 2011-08-24.
  88. ^ David Hershey. "Re: What is the biggest tree in the world?". MadSci Network. Retrieved 2011-10-17.
  89. ^ "The US Navy". US Navy. Retrieved 17 December 2011.
  90. ^ "Darjeeling Tea: Questions and Answers". Darjeeling Tea Association. Retrieved 2011-09-11.
  91. ^ "THE 66,000 TON MYTH". Mark Chirnside. Retrieved 2011-08-24.
  92. ^ "Hamersley Freight Line - Railway Technology". Railway Technology. Retrieved 2011-10-17.
  93. ^ "Knock Nevis - The world's largest ship ever". Container-Transportation. Retrieved 19 October 2011.
  94. ^ "Is the Sun Shrinking?". Stanford Solar Center. Retrieved 2011-08-24.
  95. ^ Levy, Janey (2005). The Great Pyramid of Giza: Measuring Length, Area, Volume, and Angles. Rosen Publishing Group. ISBN 1-4042-6059-5.
  96. ^ Richard R. Wertz. "The Three Gorges Dam Project". Retrieved 2011-10-17.
  97. ^ "Density of Concrete". The Physics Factbook. Retrieved 2011-10-17.
  98. ^ Andrew Hamilton. "Hawking Radiation". University of Colorado at Boulder. Retrieved 2011-10-17.
  99. ^ Chris Birks; Mike Owen; Brian Arkell (2001). "London's Water Resources: Threat or Opportunity". Area. 33 (1): 95–97. JSTOR 20004131.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  100. ^ "World POPClock Projection". U.S. Census Bureau. 13 Dec 2011. Retrieved 13 December 2011. 6,981,057,639
  101. ^ Calculated: adult men have a weight of 70 kg, use 55 kg to account for smaller weights of women and children. 7.0e9 people × 55 kg/person = 4e11 kg
  102. ^ Stephen Nicol & Yoshinari Endo (1997). Krill Fisheries of the World. Fisheries Technical Paper 367. Food and Agriculture Organization. ISBN 92-5-104012-5.
  103. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1126/science.1157972, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1126/science.1157972 instead.
  104. ^ "Key World Energy Statistics 2010" (PDF). International Energy Agency. 2010. p. 10. Retrieved 2011-09-13.
  105. ^ The average density of material in a neutron star of radius 10 km is 1.1×1012 kg cm−3. Therefore, 5 ml of such material is 5.5×1012 kg, or 5 500 000 000 metric tons. This is about 15 times the total mass of the human world population. Alternatively, 5 ml from a neutron star of radius 20 km radius (average density 8.35×1010 kg cm−3) has a mass of about 400 million metric tons, or about the mass of all humans.
  106. ^ "How much does a mountain weigh?". Answerbag. Retrieved 2011-10-19.
  107. ^ Field, C.B. (1998). "Primary production of the Biosphere: Integrating Terrestrial and Oceanic Components". Science. 281 (5374): 237–240. Bibcode:1998Sci...281..237F. doi:10.1126/science.281.5374.237. PMID 9657713. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  108. ^ "Total carbon stored in the atmosphere". BioNumbers. Retrieved 2011-10-19.
  109. ^ "Total carbon stored in the terrestrial biosphere". BioNumbers. Retrieved 2011-10-19.
  110. ^ "Total carbon stored in coal deposits worldwide". BioNumbers. Retrieved 2011-10-19.
  111. ^ "Asteroid Fact Sheet". NASA. Retrieved 2011-10-15.
  112. ^ William B. Whitman, David C. Coleman, William J. Wiebe (1998). "Prokaryotes: The unseen majority". Proceedings of the National Academy of Sciences of the United States of America. 95 (12): 6578–6583. Bibcode:1998PNAS...95.6578W. doi:10.1073/pnas.95.12.6578. PMC 33863. PMID 9618454.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  113. ^ "Total carbon stored in the oceans (mostly inorganic)". BioNumbers. Retrieved 2011-10-19.
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  115. ^ Trenberth, Kevin E.; Smith, Lesley. "The Mass of the Atmosphere: a Constraint on Global Analyses". National Center for Atmospheric Research. Retrieved 2011-09-09.
  116. ^ Jim Baer (2010). "Recent Asteroid Mass Determinations". Personal Website. Retrieved 2011-10-16.
  117. ^ Brainerd, Jerome James. "Saturn's Rings". The Astrophysics Spectator. Retrieved 2011-09-09.
  118. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1051/0004-6361:20078166, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1051/0004-6361:20078166 instead.
  119. ^ "Mass of the Oceans". The Physics Factbook. Retrieved 2011-09-09.
  120. ^ a b Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1086/504422, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1086/504422 instead.
  121. ^ Krasinsky, G. A. (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158 (1): 98–105. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help); Unknown parameter |month= ignored (help)
  122. ^ "Solar System Exploration: Triton: Overview". Solar System Exploration. NASA. Retrieved 2011-09-22.
  123. ^ "Earth's Moon: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-10-13.
  124. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1086/508812 , please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1086/508812 instead.
  125. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1126/science.286.5437.77 , please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1126/science.286.5437.77 instead.
  126. ^ "Mercury: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-22.
  127. ^ "Mars: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-22.
  128. ^ "Venus: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-22.
  129. ^ "Earth: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29.
  130. ^ Weissman, Paul R. (1983). "The mass of the Oort cloud". Astronomy and Astrophysics 118(1): 90–94. Retrieved on 2009-02-05.
  131. ^ "Uranus: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-22.
  132. ^ "Neptune: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-22.
  133. ^ "Saturn: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-22.
  134. ^ "Jupiter: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-22.
  135. ^ Boss, Alan (2001-04-03). "Are They Planets or What?". Carnegie Institution of Washington. Archived from the original on 2006-09-28. Retrieved 2006-06-08.
  136. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1086/383289 , please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1086/383289 instead.
  137. ^ "Sun Fact Sheet". NASA. Retrieved 2011-10-15.
  138. ^ p. 55, How A Supernova Explodes, Hans A. Bethe and Gerald Brown, pp. 51–62 in Formation And Evolution of Black Holes in the Galaxy: Selected Papers with Commentary, Hans Albrecht Bethe, Gerald Edward Brown, and Chang-Hwan Lee, River Edge, NJ: World Scientific: 2003. ISBN 981-238-250-X.
  139. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1126/science.1136259 , please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1126/science.1136259 instead.
  140. ^ Kaler, Jim. "Betelgeuse" (2008). Stars. University of Illinois. Retrieved on 2009-02-08.
  141. ^ Dejoie, Joyce; Truelove, Elizabeth (May 2000). "What's the biggest star we know?" StarChild. NASA. Retrieved on 2009-02-08.
  142. ^ "Hubble identifies what may be the most luminous star known" (1997). HubbleSite. Retrieved on 2009-02-08.
  143. ^ The Astrophysics Spectator: Open Star Clusters. Retrieved 2008-09-15
  144. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1086/319965, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1086/319965 instead.
  145. ^ "Globular cluster parameters". Oleg Y. Gnedin and Jeremia P. Ostriker. Retrieved 2011-09-09.
  146. ^ "Cool Cosmos". Infrared Processing and Analysis Center. Retrieved 2011-10-16.
  147. ^ "Milky Way Galaxy: Molecular Clouds". The Astrophysics Spectator. Retrieved 2011-10-16.
  148. ^ The Astrophysics Spectator: Molecular Clouds. Retrieved 2008-09-15
  149. ^ Olano, C. A. (August 1982). "On a model of local gas related to Gould's belt" (PDF). Astronomy and Astrophysics 112(2): 195–208.
  150. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1086/427175 , please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1086/427175 instead.
  151. ^ Jim Brau. "The Milky Way Galaxy". Retrieved 2011-09-12. total mass (within 15 kpc) = 2 x 10^11 solar masses
  152. ^ a b Karachentsev, I. D.; Kashibadze, O. G. (2006). "Masses of the local group and of the M81 group estimated from distortions in the local velocity field". Astrophysics 49(1): 3–18. doi:10.1007/s10511-006-0002-6.
  153. ^ Einasto, M.; Saar, E.; Liivamägi, L. J.; Einasto, J.; Tago, E.; Martínez, V. J.; Starck, J.-L.; Müller, V.; Heinämäki, P.; Nurmi, P.; Gramann, M.; Hütsi, G. (December 2007). "The richest superclusters: I. Morphology". Astronomy and Astrophysics 476(2): 697–711. doi:10.1051/0004-6361:20078037.
  154. ^ "Mass, Size, and Density of the Universe". Retrieved 2013-01-15.
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