Plasma (physics) potential in the space between charged particles, independent of how it can be measured, is called the "plasma potential", or the "space potential". If an electrode is inserted into a plasma, its potential will generally lie considerably below the plasma potential due to what is termed a Debye sheath. The good electrical conductivity of plasmas makes their electric fields very small. This results in the important concept of "quasineutrality", which says the density of negative charges is approximately equal to the density of positive charges over large volumes of the plasma (formula_6), but on the scale of the Debye length
Negative and positive atheism atheism as a way of life in his 1972 book, "Positive Atheism". Similarly, the Atheist Community of Austin (ACA) uses the term "positive atheism" in the sense of putting a positive face to atheism and dispelling the false and negative image of atheism portrayed by religious people, especially in places of worship. "Positive Atheism Magazine" "sees atheism as being a positive, healthy outlook -- much healthier than any theistic approach to life." Agnostics are not always merely implicit atheists. For instance, Philip Pullman, the English author of the "His Dark Materials" fantasy trilogy, which has atheism as a major theme,