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Midgard is the name for Earth in Germanic cosmology, meaning "middle yard" or "middle enclosure". It is derived from Common Germanic *Meðjana-garðaz and appears in Old Norse, Old English, Old Saxon and Old High German.
Alfred Wegener was a German scientist who proposed in 1912 that the continents are drifting around the Earth. He also made contributions to meteorology, climatology and polar research, but his theory was not widely accepted until the 1950s.
An equatorial mount is a type of mount for astronomical telescopes and cameras that compensates for Earth's rotation by having one axis parallel to the Earth's axis. Learn about the principle, types, and history of equatorial mounts, and how they differ from altazimuth mounts.
Learn about the three parts of a shadow created by any light source after impinging on an opaque object. The umbra is the darkest part where the light is completely blocked, the penumbra is the partial part where some light is blocked, and the antumbra is the outer part where the light source is visible.
Learn about the area, location, borders, climate, terrain and natural resources of Germany, the seventh-largest country by area in Europe. Germany covers 357,021 km2 (137,847 sq mi) of land and water, and has nine neighbors and two maritime borders.
Agartha is a mythical place that some occultists and esotericists believe to be located on the inner surface of the Earth. It is often associated with Shambhala, a Buddhist paradise, and with the idea of a hollow Earth.
Learn about the geological history and diversity of Germany, from the Precambrian basement to the Quaternary glaciations. Explore the three physiographic regions, the four crustal levels and the tectonic provinces of Germany.
Learn about the history, institutions, fields and achievements of German science and technology, from the Scientific Revolution to the present. Germany is a leading innovator and producer of Nobel laureates, research centers and scientific publications.