Search results
Results from the WOW.Com Content Network
The tale is classified in the international Aarne-Thompson-Uther Index as type ATU 400, "The Man on a Quest for the Lost Wife": the hero finds a maiden of supernatural origin (e.g., the swan maiden) or rescues a princess from an enchantment; either way, he marries her, but she disappears to another place.
Iron oxide copper gold (IOCG) deposits are considered to be metasomatic expressions of large crustal-scale alteration events driven by intrusive activity. The deposit type was first recognised by discovery and study of the supergiant Olympic Dam copper-gold-uranium deposit (Olympic Dam mine), and South American examples.
Elemental iron is virtually absent on the Earth's surface except as iron-nickel alloys from meteorites and very rare forms of deep mantle xenoliths.Although iron is the fourth most abundant element in Earth's crust, composing about 5% by weight, [4] the vast majority is bound in silicate or, more rarely, carbonate minerals, and smelting pure iron from these minerals would require a prohibitive ...
A never-before-seen ore containing vast quantities of an element widely used in semiconductors has been found in China in a discovery that could propel new advances in battery technology.
The team discovered that there was likely a fire that destroyed a portion of the temple, which led to brick partitions being put in place to protect the remaining sections, and to a new section ...
The castle was built above the cave long before any excavation. At that time, the scientists hit a more than 5-foot-thick rock, which blocked them from burrowing into key layers of the collapsed cave.
The antiquarian John Aubrey wrote that he discovered iron ore as early as 1666 when it rained so much that it washed away the sand from the ore and the later bright sun reflected on it. He described the ore field as the richest he had ever seen. [4] The smith could melt the ore in his forge, which wasn't possible with ore from the Forest of Dean.
Burt's solar compass or astronomical compass/sun compass is a surveying instrument that makes use of the Sun's direction instead of magnetism. William Austin Burt invented his solar compass in 1835. The solar compass works on the principle that the direction to the Sun at a specified time can be calculated if the position of the observer on the ...