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| *5. fig. Stupidity, crassitude. | | *5. fig. Stupidity, crassitude. |
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| + | <center>For lessons on the [[topic]] of '''''Density''''', follow [https://nordan.daynal.org/wiki/index.php?title=Category:Density this link].</center> |
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| ==Description== | | ==Description== |
| The density of a material is defined as its mass per unit volume. The symbol of density is ρ (the Greek letter rho). | | The density of a material is defined as its mass per unit volume. The symbol of density is ρ (the Greek letter rho). |
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| A very common instrument for the direct measurement of the density of a liquid is the hydrometer, which measures the volume displaced by an object of known mass. A common laboratory device for measuring fluid density is a pycnometer; a related device for measuring the absolute density of a solid is a gas pycnometer. Another instrument used to determine the density of a liquid or a gas is the digital density meter - based on the oscillating U-tube principle. | | A very common instrument for the direct measurement of the density of a liquid is the hydrometer, which measures the volume displaced by an object of known mass. A common laboratory device for measuring fluid density is a pycnometer; a related device for measuring the absolute density of a solid is a gas pycnometer. Another instrument used to determine the density of a liquid or a gas is the digital density meter - based on the oscillating U-tube principle. |
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− | The density of a solid [[material]] can be ambiguous, depending on exactly how its volume is defined, and this may cause confusion in measurement. A common example is sand: if gently filled into a container, the density will be low; when the same sand is compacted into the same container, it will occupy less volume and consequently exhibit a greater density. This is because sand, like all powders and granular solids contains a lot of air [[space]] in between [[individual]] grains; this overall density is called the bulk density, which differs significantly from the density of an individual grain of sand.[http://en.wikipedia.org/wiki/Density] | + | The density of a solid [[material]] can be ambiguous, depending on exactly how its volume is defined, and this may cause confusion in measurement. A common example is sand: if gently filled into a container, the density will be low; when the same sand is compacted into the same container, it will occupy less volume and consequently exhibit a greater density. This is because sand, like all powders and granular solids contains a lot of air [[space]] in between [[individual]] grains; this overall density is called the bulk density, which differs significantly from the density of an individual grain of sand.[https://en.wikipedia.org/wiki/Density] |
| ===References=== | | ===References=== |
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| # Nuclear Size and Density, HyperPhysics, Georgia State University. Accessed on line June 26, 2009. | | # Nuclear Size and Density, HyperPhysics, Georgia State University. Accessed on line June 26, 2009. |
| ===External links=== | | ===External links=== |
− | *[http://glassproperties.com/density/room-temperature/ Glass Density Calculation - Calculation of the density of glass at room temperature and of glass melts at 1000 - 1400°C] | + | *[https://glassproperties.com/density/room-temperature/ Glass Density Calculation - Calculation of the density of glass at room temperature and of glass melts at 1000 - 1400°C] |
− | *[http://www.science.co.il/PTelements.asp?s=Density List of Elements of the Periodic Table - Sorted by Density] | + | *[https://www.science.co.il/PTelements.asp?s=Density List of Elements of the Periodic Table - Sorted by Density] |
− | *[http://ddbonline.ddbst.de/DIPPR105DensityCalculation/DIPPR105CalculationCGI.exe Calculation of saturated liquid densities for some components] | + | *[https://ddbonline.ddbst.de/DIPPR105DensityCalculation/DIPPR105CalculationCGI.exe Calculation of saturated liquid densities for some components] |
− | *[http://www.engineeringtoolbox.com/water-density-specific-weight-d_595.html Water - Density and Specific Weight] | + | *[https://www.engineeringtoolbox.com/water-density-specific-weight-d_595.html Water - Density and Specific Weight] |
− | *[http://www.sengpielaudio.com/ConvDensi.htm Temperature dependence of the density of water - Conversions of density units] | + | *[https://www.sengpielaudio.com/ConvDensi.htm Temperature dependence of the density of water - Conversions of density units] |
| ==Esotericism== | | ==Esotericism== |
| [[File:lighterstill.jpg]] | | [[File:lighterstill.jpg]] |
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| ==External links (Planes' diagrams)== | | ==External links (Planes' diagrams)== |
− | * [http://www.veda.harekrsna.cz/planetarium/index.htm#15 Vedic cosmology - planetarium] | + | * [https://www.veda.harekrsna.cz/planetarium/index.htm#15 Vedic cosmology - planetarium] |
− | * [http://www.spiritualresearchfoundation.org/spiritualresearch/spiritualscience/afterdeath/#2 Planes of Existence] - Spiritual Science Research Foundation | + | * [https://www.spiritualresearchfoundation.org/spiritualresearch/spiritualscience/afterdeath/#2 Planes of Existence] - Spiritual Science Research Foundation |
− | * [http://www.kheper.net/integral/planes.html Planes of Existence] - Kheper website | + | * [https://www.kheper.net/integral/planes.html Planes of Existence] - Kheper website |
− | * [http://www.accesstoinsight.org/ptf/loka.html The Thirty-one Planes of Existence] - according to [[Buddhism|Buddhist]] cosmology | + | * [https://www.accesstoinsight.org/ptf/loka.html The Thirty-one Planes of Existence] - according to [[Buddhism|Buddhist]] cosmology |
− | * [http://spirits_quest.tripod.com/Genesis.htm Genesis, Planes of Creation, Positive & Negative Powers] - cosmology according to [[Radhasoami]]/[[Sant Mat]] teachings | + | * [https://spirits_quest.tripod.com/Genesis.htm Genesis, Planes of Creation, Positive & Negative Powers] - cosmology according to [[Radhasoami]]/[[Sant Mat]] teachings |
− | * [http://www.santji.allegre.ca/planes-640.jpg “The Grand Scheme of All Creation”] - part of the [http://www.santji.allegre.ca/ Sant Ajaib Singh Ji Memorial Site] (a small Radhasoami cosmological diagram) | + | * [https://www.santji.allegre.ca/planes-640.jpg “The Grand Scheme of All Creation”] - part of the [https://www.santji.allegre.ca/ Sant Ajaib Singh Ji Memorial Site] (a small Radhasoami cosmological diagram) |
− | * [http://www.geocities.com/santmat_mystic/ChartPlanes.jpg The creation according to Sant Mat] | + | * [https://www.geocities.com/santmat_mystic/ChartPlanes.jpg The creation according to Sant Mat] |
− | * [http://www.geocities.com/santmat_mystic/Cat.pdf The inner planes of creation] (pdf) - a [[Surat Shabd Yoga]]/Sant Mat diagram | + | * [https://www.geocities.com/santmat_mystic/Cat.pdf The inner planes of creation] (pdf) - a [[Surat Shabd Yoga]]/Sant Mat diagram |
− | * [http://www.mudrashram.com/GCC2.html The Great Continuum Of Consciousness] according to [[George A. Boyd]] | + | * [https://www.mudrashram.com/GCC2.html The Great Continuum Of Consciousness] according to [[George A. Boyd]] |
− | * [http://www.rosicrucian.com/images/rccen001.gif The Material World a Reverse Reflection of the Spiritual Worlds] according to [[The Rosicrucian Cosmo-Conception|Rosicrucian cosmology]]: | + | * [https://www.rosicrucian.com/images/rccen001.gif The Material World a Reverse Reflection of the Spiritual Worlds] according to [[The Rosicrucian Cosmo-Conception|Rosicrucian cosmology]]: |
− | ** [http://www.rosicrucian.com/images/rccen002.gif The Seven Worlds] | + | ** [https://www.rosicrucian.com/images/rccen002.gif The Seven Worlds] |
− | ** [http://www.rosicrucian.com/images/rccen006.gif The Supreme Being, The Cosmic Planes and God] | + | ** [https://www.rosicrucian.com/images/rccen006.gif The Supreme Being, The Cosmic Planes and God] |
− | * [http://new-ecopsychology.org/en/books/ecopsychology/eco-3.htm Multidimensionality of the Universe] - based on the philosophy of [[Vladimir Antonov (scientist)|Vladimir Antonov]] | + | * [https://new-ecopsychology.org/en/books/ecopsychology/eco-3.htm Multidimensionality of the Universe] - based on the philosophy of [[Vladimir Antonov (scientist)|Vladimir Antonov]] |
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| [[Category: Physics]] | | [[Category: Physics]] |
| [[Category: Religion]] | | [[Category: Religion]] |
| [[Category: Cosmology]] | | [[Category: Cosmology]] |