Exposure to the very high intensity electromagnetic fields found in the immediate vicinity of certain sources such as radar installations and TV or radio transmitters can produce electrical shock or a variety of heating effects, which may range from a sensation of warmth to burns and eventual cataract formation.
S 1 is a vertical, perfectly inelastic, supply curve. This represents 'momentary' supply. In most industries, if a firm was asked to produce a large order immediately, it simply would not be able to do it, regardless of the price offered for the order. Supply is perfectly inelastic in the very short run.
Demand shifts to the left. A decrease in demand shifts the demand curve to the left and reduces price and output. An increase in supply shifts the supply curve to the right, which reduces price and increases output. A decrease in supply shifts the supply curve to the left, which raises price but reduces output.