The U.S. government does not issue certificates of free sale. However, the Food and Drug Administration, Silver Spring, Maryland, will issue, upon request, a letter of comment to the U.S. manufacturers whose products are subject to the Federal Food, Drug ...

Pertaining to the current resulting from the coupling of dissimilar electrodes in an electrolyte

The process of managing the consumption of energy, generally to optimize available and planned generation resources.

An interest-only mortgage ultimately repaid by the proceeds of an endowment assurance policy which.

A wedge-shaped piece of timber used to secure barrels against movement.

The trapping of light inside a semiconductor material by refracting and reflecting the light at critical angles; trapped light will travel further in the material, greatly increasing the probability of absorption and hence of producing charge carriers.

A prisoner sold in the slave market. He was forced to serve in the war galleys, where he pulled on one of the oars.

See Heave To

An act of Congress (1903) prohibiting rebates, concession, misbilling, etc. and providing specific penalties for such violations.

A device that captures the heat from the exhaust air from a building and transfers it to the supply/fresh fresh air entering the building to preheat the air and increase overall heating efficiency.

The amount of solar radiation striking a surface per unit of time and area.

Dihydrogen oxide, molecular formula H2O.

Alphabet used by the Navy when making sure that a letter is understood; i.e. "BRAVO OSCAR ALPHA TANGO spells BOAT"

An instrument for the measurement of the radon content of the atmosphere.

Taxation which is levied in an indirect way rather than being charged directly on an individual's.

Any one of a family of circular arcs consisting of concentric colored bands, arranged from red on the inside to blue on the outside, which may be seen on a "sheet" of water drops (rain, fog, spray). The most common of the many possible is the primary rain ...

The process of the absorption of heat from one location and its transfer to another for rejection or recuperation.

Magnetic variation. The difference, east or west, between magnetic north and true north, measured as an angle. Magnetic variation varies in different geographic locations.

A mathematical representation of the frequency or ratio that specific wind speeds occur within a specified time interval.

This designates the resistance of a material to heat conduction. The greater the R-value the larger the number.