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  2. Six degrees of separation - Wikipedia

    en.wikipedia.org/wiki/Six_degrees_of_separation

    Thus if N = 300,000,000 (90% of the US population, with 10% of population being too young to participate) and K = 30 then Degrees of Separation = APL = 19.5 / 3.4 = 5.7 and if N = 7,200,000,000 (90% of the world population, with 10% of population being too young to participate) and K = 30 then Degrees of Separation = APL = 22.7 / 3.4 = 6.7.

  3. Daantjie Badenhorst - Wikipedia

    en.wikipedia.org/wiki/Daantjie_Badenhorst

    Badenhorst was born in Pietermaritzburg in the then Natal Province on 6 December 1967. He was one of four children. Badenhorst completed high school at Hoërskool Waterkloof, Pretoria, in 1985 and subsequently went to work for the South African Government Printing Works.

  4. Mean inter-particle distance - Wikipedia

    en.wikipedia.org/wiki/Mean_inter-particle_distance

    Note that since the particles in the ideal gas are non-interacting, the probability of finding a particle at a certain distance from another particle is the same as the probability of finding a particle at the same distance from any other point; we shall use the center of the sphere.

  5. Water retention curve - Wikipedia

    en.wikipedia.org/wiki/Water_retention_curve

    In 1907, Edgar Buckingham created the first water retention curve. [2] It was measured and made for six soils varying in texture from sand to clay. The data came from experiments made on soil columns 48 inch tall, where a constant water level maintained about 2 inches above the bottom through periodic addition of water from a side tube.

  6. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    There is no clear relationship between the size of soil mineral components and their mineralogical nature: sand and silt particles can be calcareous as well as siliceous, [18] while textural clay (0.002 mm (7.9 × 10 −5 in)) can be made of very fine quartz particles as well as of multi-layered secondary minerals. [19]

  7. Mineral resource estimation - Wikipedia

    en.wikipedia.org/wiki/Mineral_resource_estimation

    Mineral resource estimation is used to determine and define the ore tonnage and grade of a geological deposit, from the developed block model.There are different estimation methods used for different scenarios dependent upon the ore boundaries, geological deposit geometry, grade variability and the amount of time and money available.

  8. Wikipedia:Six degrees of Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Six_degrees_of...

    Only takes 3 or 5, depending on direction. George W. Bush → MIT is 3 or 2. smurrayinchester , 16:16, 5 March 2006 (UTC) Aliens to Vimes There is, according to kate's tool, no path under 10 steps between these articles, however the return path, Vimes to Aliens is only 4 degrees - none of which are date related. Chrisboote

  9. Infiltration (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Infiltration_(hydrology)

    The available volume for additional water in the soil depends on the porosity of the soil [7] and the rate at which previously infiltrated water can move away from the surface through the soil. The maximum rate at that water can enter soil in a given condition is the infiltration capacity.