An absolute instrument developed by K. Angstrom for the measurement of direct solar radiation. The radiation receiver station consists of two identical manganin strips whose temperatures are measured by attached thermocouples. One of the strips is shaded, ...

An instrument developed by K. Angstrom for measuring the effective terrestrial radiation. It consists of four manganin strips, of which two are blackened and two are polished. The blackened strips are allowed to radiate to the atmosphere while the polishe ...

A unit of length named for A.J. Angstome, a Swedish spectoscopist, used in measuring electromagnetic radiation equal to 0.000,000,01 centimeters.

devoid of water.

A negatively charged ion.

Analog

See 'reversionary.

(AER)A figure quoted in loan advertisements to help people make compare one product with another. It.

Each taxpaying individual in the UK is entitled to an annual exemption of

The measure of seasonal or annual efficiency of a residential heating furnace or boiler. It takes into account the cyclic on/off operation and associated energy losses of the heating unit as it responds to changes in the load, which in turn is affected by ...

(AGM)An annual meeting, called by the directors of a company, which shareholders are invited to.

That fraction of annual energy demand supplied by a solar system.

(APR)Where interest on loans is expressed as other than a yearly rate, for example 1.5% per month, APR.

All quoted companies have a legal obligation to send shareholders annual results within six.

The total annual return on an investment which includes dividend payments and capital.

The annual solar savings of a solar building is the energy savings attributable to a solar feature relative to the energy requirements of a non-solar building.

The amount by which magnetic variation changes up or down each year in a particular area. The annual increase or decrease is printed in the compass roses on each chart and may make a significant difference over a number of years.

A person in receipt of an.

The commencement of regular payments from capital which has accumulated in an.

The payment of a regular income by a life company to an annuitant in exchange for a lump sum.