The Sweden Democrats continued to use the Keep Sweden Swedish as a slogan. The Sweden Democrats was founded in 1988 as a successor to the Sweden Party, which in turn had been formed in 1986 by the merger of Bevara Sverige Svenskt (BSS, English: Keep Sweden Swedish) and a faction of the Swedish Progress Party.
Evaporative coolers lower the temperature of air using the principle of evaporative cooling, unlike typical air conditioning systems which use vapor-compression refrigeration or absorption refrigerator. Evaporative cooling is the addition of water vapor into air, which causes a lowering of the temperature of the air.or direct evaporative cooling, the direct saturation efficiency, , measures in what extent the temperature of the air leaving the direct evaporative cooler is close to the wet-bulb temperature of the entering air.
For example, on a hot summer's day if you sprinkle water on your skin it will cool your skin as you evaporate. That's an example of refrigeration! Water can't be used in freezer though, because it evaporates at too high a temperature. But some liquids evaporate at very low temperatures. For example Isobutane (becoming more common in domestic freezers) evaporates at very low temperatures.