A set of electrical conductors, often on a backplane, that carry data and power signals among the various components of a computer.

The group of bits which a computer processes as a unit; often, 8 bits.

The process whereby a position on the scale of an instrument is identified with the magnitude of the signal (or input force) actuating the instrument.

The inaccuracy that the manufacturer permits when the unit is calibrated in the factory.

Wind with a speed below 1 knot (1 mph); Beaufort scale number 0.

A unit of heat originally defined as the amount of heat required to raise the temperature of water through one degree centigrade (the gram-calorie or small calorie), but this proved to be insufficiently precise. The 15

An instrument designed to measure quantities of heat. Sometimes used in meteorology to measure solar radiation.

A sunshine recorder of the type in which the time scale is supplied by the motion of the sun. It consists essentially of a spherical lens which bums an image of the sun upon a specialty prepared card.

A type of disk hardness-gauge, especially useful in relatively soft snow. See disk hardness gauge.

A unit of luminous intensity of a light source.

Same as luminous intensity.

An instrument for collecting liquid water from the atmosphere.

A buoyant balloon kept from rising freely by means of a line secured to a point on the ground, as opposed to a free balloon. See kytoon.

film hygrometer element-An electrical hygrometer element constructed of a plastic strip coated with a film of carbon black dispersed in a hygroscopic binder. Variations in atmospheric moisture content vary the volume of the binder and thus change the resi ...

Winds from the four cardinal points of the compass; that is, north, east, south, and west winds.

The frequency of a carrier wave.

Transmitted energy which is modulated in order to carry information. Usually, it is in the form of a radio- frequency sine wave, modulated either in amplitude or in frequency.

The portion of the strearnflow during any month or year derived from precipitation in previous months or years.

The amount of precipitation captured by a rain gauge.

The height ascribed to the lowest layer of clouds or obscuring phenomena when it is reported as broken, overcast, or obscuration and not classified as "thin" or "partial." The ceiling is termed unlimited when these conditions are not satisfied. ...