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.
Shifts in supply. The position of a supply curve will change following a change in one or more of the underlying determinants of supply. For example, a change in costs, such as a change in labour or raw material costs, will shift the position of the supply curve. If costs rise, less can be produced at any given price, and the supply curve will shift to the left.