What a glorious electric day in East Anglia, a wonderful Norfolk dielectric to be alive.
After days, weeks of blue sky with its charging sunshine and really warm days there appeared electric cloud formations linking upwards and downwards, everything. Streak cloud structure variations with like those found in the middle of holepunch clouds.
And flying ants when the moon is behind us in the circuit with the sun. Mars?
Such a lovely hot day and calm to start with, then the clouds showing the different layers and components with wind current increasing. Then wonderful evening, perfectly still at our basking layer.
Earth is an electrically charged object: it maintains an electric field at its surface between 50 and 200 volts per meter: for every meter above the ground the voltage increases…
some theories about lightning propose that clouds are one side of a capacitor and the ground acts like the opposite side, with the atmosphere as a dielectric insulator. When electric charge between the clouds and the ground overcomes the atmospheric insulator, the opposite charges “reach out” to each other, forming “leader strokes”.
Electric Sprites | thunderbolts
Dielectric, insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material. Instead, electric polarization occurs. The positive charges within the dielectric are displaced minutely in the direction of the electric field, and the negative charges are displaced minutely in the direction opposite to the electric field. This slight separation of charge, or polarization, reduces the electric field within the dielectric.
The presence of dielectric material affects other electrical phenomena. The force between two electric charges in a dielectric medium is less than it would be in a vacuum, while the quantity of energy stored in an electric field per unit volume of a dielectric medium is greater. The capacitance of a capacitor filled with a dielectric is greater than it would be in a vacuum.
Dielectric | Encyclopædia Britannica
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