Talk:Physical properties of soil
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Ozone layer
editOzone depletion all Ozone Layer is a protective near which is made of an isotope of exchange oxygen which protects the biosphere from haramful ultraviolet radiation has wavelength NM is smaller than 250 mm which is highly at harmful for Organisation was only 35 km it is from by combining oxygen 111.119.183.34 (talk) 12:57, 11 May 2022 (UTC)
Electrical displacement conductivity of soil
editThe depth of electromagnetic waves soil penetration is proportional to the displacement conductivity of this soil. ( skin effect ). This conductivity is principally due to the water saturation ( Archie... ). So , I propose a practical formula for this particular conductivity : Sigma = ( 2pi / Zo ) x square root of ( W x 81 x Tg delta )...in Siemens/m . Where W is the water saturation coefficient ( 0 to 1 ), 81 is the water permittivity , Zo is the vacuum impedance ( 377 ohms ) and Tg delta is the losses coefficient of water equal to the power 3 of (( 40 °C + temperature concerned ) divided by 110 °C )...Leveugel (talk) 08:45, 3 June 2026 (UTC)