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Inverse Barometer Effect: The inverse response of sea level to changes in atmospheric pressure. A static reduction of 1.005 mb in atmospheric pressure will cause a stationary rise of 1 cm in sea level.

January Barometer: A statistic from 'The Stock Traders Alamanac' reflecting, with 88% accuracy, that the overall stock market rises in a year when the S&P is up in the month of January and drops when the index . . . View Full Definition

January Effect: Each year, the stock market tends to increase slightly in value between December 31 and the end of the first week of January. Known as the January Effect, this rise starts when investors sel . . . View Full Definition

Inverse Synthetic Aperture Radar (ISAR): Inverse sar (isar) is a variation on the sar theme that uses the motion of the target relative to the radar to the same effect.

Inverse Square Law: In mathematics, the law that states that in the absence of reflective surfaces, sound pressure (or light) falls off at a rate inverse to the square of the distance from its source. In other . . . View Full Definition

Inverse Floating-Rate Note: A variable-rate security whose coupon rate increases as a benchmark interest rate declines.

Kostinsky Effect: Development effect in which dense image points are inclined to move apart, relative to each other, and light image points to move together, relative to each other. This occurs because develo . . . View Full Definition

Lake Effect Snow: Snow showers that are created when cold dry air passes over a large warmer lake, such as one of the Great Lakes, and picks up moisture and heat.

Magnus Effect: The effect on a spinning cylinder or sphere moving through a fluid, in which force acts perpendicular to the direction of motion and to the direction of spin. This is used to advantage in ba . . . View Full Definition

Memory Effect: The life of a battery may be gradually shortened if it is recharged before it is completely discharged. Memory effect most commonly occurs with Nickel Cadmium batteries are less of a problem . . . View Full Definition