align the compass initially
1History of the Boy Scouts of America — The Boy Scouts of America (BSA) was inspired by and modeled on the Boy Scout Association, established by Baden Powell in Britain in 1908. In the early 1900s, several youth organizations were active, and many became part of the BSA (see Scouting… …
2Aircraft compass turns — In aviation, aircraft compass turns are turns made in an aircraft using only a magnetic compass for guidance.DescriptionA magnetic compass aboard an aircraft displays the current magnetic heading of the aircraft, i.e., the aircraft s direction of …
3Military history of the United States — History of the United States This article is part of a series Timeline …
4Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …
5Italy — /it l ee/, n. a republic in S Europe, comprising a peninsula S of the Alps, and Sicily, Sardinia, Elba, and other smaller islands: a kingdom 1870 1946. 57,534,088; 116,294 sq. mi. (301,200 sq. km). Cap.: Rome. Italian, Italia. * * * Italy… …
6Adjoint functors — Adjunction redirects here. For the construction in field theory, see Adjunction (field theory). For the construction in topology, see Adjunction space. In mathematics, adjoint functors are pairs of functors which stand in a particular… …
7geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …
8ancient Greek civilization — ▪ historical region, Eurasia Introduction the period following Mycenaean civilization, which ended in about 1200 BC, to the death of Alexander the Great, in 323 BC. It was a period of political, philosophical, artistic, and scientific… …
9Royal Observer Corps — Ensign Active 1925–1996 Country …
10September 11 attacks — September 11 attacks …
