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plein-air

(Encyclopedia)plein-air plān-ârˈ, Fr. plĕn-ĕrˈ [key] [Fr.,=open-air], term used for paintings or drawings made directly from nature and infused with a feeling of the open air. Painting outdoors is a relativel...

Huntington, Henry Edwards

(Encyclopedia)Huntington, Henry Edwards, 1850–1927, American financier, b. Oneonta, N.Y. He was prominent in railroad and other enterprises. Until the death of his uncle, Collis P. Huntington, the two were busine...

air lock

(Encyclopedia)air lock, compartment connecting two different environments, usually at different pressures, that enables personnel to transfer from one environment to the other. Space capsules have air locks to enab...

air-cushion vehicle

(Encyclopedia)CE5 Air-cushion vehicle: In vehicles modified with a trunk or skirt (A), the rate of leakage is reduced and less power is needed to maintain the cushion. Vehicles designed to travel over deep water...

acid-base indicators

(Encyclopedia)acid-base indicators: see indicators, acid-base. ...

liquid air

(Encyclopedia)liquid air, ordinary air that has been liquefied by compression and cooling to extremely low temperatures (see liquefaction). Its commercial preparation involves purification by washing to remove solu...

Edwards, Jonathan, 1745–1801, American theologian

(Encyclopedia)Edwards, Jonathan, the younger, 1745–1801, American theologian, b. Northampton, Mass., grad. College of New Jersey (now Princeton), 1765; son of Jonathan Edwards (1703–58). His career in some ways...

lock, air

(Encyclopedia)lock, air: see air lock.

Aïr Massif

(Encyclopedia)Aïr Massif or Aïr Mountains, Africa: see Sahara. ...

Bakersfield

(Encyclopedia)Bakersfield, city (2020 pop. 403,455), seat of Kern co., S central Calif., at the southern end of the San Joaquin valley; inc. 1898. It is an oil, minin...