Draft that is caused by temperature differences in the air.

Said of a lighthouse not tended.

Is the ratio of the computed isentropic temperature rise to the measured total temperature rise during compression.

Generally, an instrument designed to measure or estimate the blueness of the sky. See Linke-scale.

The visible portion of the electromagnetic spectrum with wavelengths from 0.4 to 0.76 microns

Cargo more than eight feet high which thus cannot fit into a standard container.

Boards used to close the companionway.

A boat that has rolled so that she is lying on her side or even rolled completely over (can be caused by a sudden gust or squall). A boat with appropriate ballast should right herself after being knocked down.

A cash value life insurance policy with a fixed term. Premiums are applied to give life insurance.

An object used as a reference point while navigating.

A cell in which chemical change is the source of electrical energy. It usually consists of two dissimilar conductors in contact with each other and with an electrolyte. or of two similar conductors in contact with each other and with dissimilar electrolyt ...

The instruction a client gives a broker to obtain a quote from a market maker on the price for a.

The range of operating conditions within which a device is designed to operate and for which operating influences are stated. See operating conditions, reference operating conditions.

In a wind energy conversion system, to pitch the turbine blades so as to reduce their lift capacity as a method of shutting down the turbine during high wind speeds.

Ragged low clouds, usually stratus fractus. Most often applied when such clouds are moving rapidly beneath a layer of nimbostratus.

Waste material from households and businesses in a community that is not regulated as hazardous.

A watch tackle (small, handy block and tackle for general use).

An instrument for measuring the pressure of gases and vapors. A mercury barometer is a type of manometer.

The amount of energy derived from an electrical source per unit quantity of electricity passing through the source.2. Electrical potential; voltage.

The process in which a solid fuel is converted into a gas; also known as pyrolitic distillation or pyrolysis. Production of a clean fuel gas makes a wide variety of power options available.