top
Mass volume-density
kg/m3 |
|
How much mass per cubic meter?
How many nucleons per cubic meter?
How much mass per 
.
|
|
kg/m3 |
|
| nucleons/m3 |
|
... |
|
| 100 |
|
10-27 |
|
|
|
10-26 |
|
| |
|
10-25 |
|
| 103 |
|
10-24 |
|
|
|
10-23 |
|
| |
|
10-22 |
|
| 106 |
|
10-21 |
~ interstellar gas |
|
|
10-20 |
Milky Way's disk |
|
|
10-19 |
|
| 109 |
|
10-18 |
|
|
|
10-17 |
|
|
|
10-16 |
|
| 1012 |
|
10-15 |
|
|
|
10-14 |
|
|
|
10-13 |
|
| 1015 |
|
10-12 |
|
|
|
10-11 |
|
|
|
10-10 |
|
| 1018 |
|
10-9 |
|
|
|
10-8 |
|
|
|
10-7 |
|
| 1021 |
|
10-6 |
|
|
|
10-5 |
|
|
|
10-4 |
|
| 1024 |
|
10-3 |
|
|
g/cm3 |
10-2 |
|
|
0.0001 |
10-1 |
helium & hydrogen (stp) |
| 1027 |
0.001 |
100 |
1 kg/m3 | air | oxygen & nitrogen (stp) |
|
0.01 |
101 |
Kapoc | lb/ft3 |
|
0.1 |
102 |
styrofoam | snow | balsa wood |
| 1030 |
1 |
103 |
1000 kg/m3 | water | wood | rock | most stuff | gassy planets | Sun |
|
10 |
104 |
most metals | iron | lead | gold | rocky planets | Earth | lb/in3 |
|
100 |
105 |
Sun's core |
| 1033 |
|
106 |
|
|
|
107 |
|
|
|
108 |
White dwarf |
| 1036 |
|
109 |
|
|
|
1010 |
White dwarf's core |
|
|
1011 |
|
| 1039 |
|
1012 |
|
|
|
1013 |
|
|
|
1014 |
|
| 1042 |
|
1015 |
|
|
|
1016 |
|
|
|
1017 |
|
| 1045 |
|
1018 |
nucleus | neutron star's core |
|
|
... |
|
Landmarks
Conversions
Doables:
a <air,mumble,styrofoam,waterrock,lead> scheme
explain mass=nucleon count approximation
interstellar too narrow??
what could be added at low density?
partials- pollen
air at altitude
Klien
region around one
landmarks- styrofoam? 100(Sizesaurus,p132), "all is one",
reference objects
comments on compressibility (or leave for its own page...?)
avoid including /ft^3 /in^3 in scale...? Remove or reexamine.
water column loaded with sediments
Notes:
interstellar (10-18 to -21 in Sizesaurus) (3x10-21 in Brandt)
MilkyWay's disk - from Brandt's
7 x 10^{-21} kg m^{-3} Dynamically inferred Milky Way disk density
In 10^n g/cm^3: 0 h2o, macroscopic on earth basically lt (20g/cm^3),
^2 to ^7 physical properties determined by e- exclusion fluid,
^7 to ^12 by nuclei stuff
^12 to ^15 nuclei, ceasing to bind excess n,
are immersed in neutron exclusion fluid
^15 to ... weird
^14 avg atomic nuclei
From nice Dense Matter Physics I. BACKGROUND AND SCOPE
History:
1998.Apr.14 Rewrote, rediscovered first draft (sigh), merged, placed online.
1997.Jun.27 First draft.
Old notes:
Do: sun 1H/m3 atoms nucleus (=neutronium?) flag bhole
mean galactic visib universe
Nmolec/xm^3 solid/gasspread
Landmarks: g/cm3 1kkg/m3 h2o gas air rock he/hy(blimp) iron coins?
specific volume
specific density
include g/cm3?
From [Vade p7]:
Solar mass/cubic parsec 6.770 × 10-20 kg/m3
STP gas density for molecular weight M = 0.044615M kg/m3
of mercury (0C) 13595, water (4C) 999.97 kg/m3 [Lindeburg fcov]
surface water sea (15C) 1026 [Cow 236] 1025 [Vade 46/Lind]
1 ton long/short / yd3 1329/1187 kg/m3
lb/in3 27680
lb/ft3 16.018
lb/gal(USlq) 119.83
oz/in3 1730.0
earth (mean) 5520 kg/m3 [Lindeburg fcov] 5500 [Cow 236]
air STP 1.293 [Cow 236/Lind], SP20C 1.20 [Lindeburg fcov]
From [Cow 238]:
water 0C 999.87, 4C 1k, 15C 999.13, 25C 997.07
From [Cow 244]:
ox 1.14 n 0.81 he 0.12 h 0.07
From [Vade 46]: g/cm3
cork 0.22-0.26
glass 2.4-2.8
ice 0C 0.917
paraffin wax 0.9
woods (oven dry) balsa .12-.20, oak .67-.98, others .5-.7
lube oil .90-.92, olive .92
glycerine 1.26, alcohol 0.8
steel 7.8 bronze 8.8-8.9 brass 8.4-8.7
zn 7.1, u 18.7, tungsten 19.3 ti 4.5 Tin 7.3 na 0.97 nickle 8.9 magnesium 1.74
iron pure 7.88 wrought 7.85 cast 7.6 steel 7.83
cu 9, graphite 2.25, diamond 3.514, ca 1.55, al 2.70
stuff is the density of water
intersteller gas 3 × 10-24 g/cm3 [Vade 80]
center of the Sun is about 150 grams per cubic centimeter [http://www.hao.ucar.edu/...