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The presence of fulgurites in an area can be used to estimate the frequency of lightning over a period of time, which can help to understand past regional climates. Paleolightning is the study of various indicators of past lightning strikes, primarily in the form of fulgurites and lightning-induced remanent magnetization signatures. [1]
In 2001, the artists Mendi and Keith Obadike listed Keith's "blackness" for sale on eBay under the "Black Americana" category as part of an art project, "Blackness for Sale." [42] [43] [44] The act was seen as a comment on the commodification of racial identity [45] and as a reference to slave auctions. [46] The auction was eventually shut down ...
A lightning strike can also create a large Lichtenberg figure in grass surrounding the point struck. These are sometimes found on golf courses or in grassy meadows. [12] Branching root-shaped "fulgurite" mineral deposits may also be created as sand and soil is fused into glassy tubes by the intense heat of the current.
Vitrified sand is a type of natural glass, contrasted with manufactured glass in which soda ash or potash are added to lower the melting point. Pure quartz melts at 1,650 °C (3,002 °F). There are several natural processes that produce more or less melted sand and one man-made form: Fulgurite is sand fused by a lightning bolt hitting sand.
The auction house is the physical facility where the objects are catalogued, displayed, and presented to the perspective buyers through a bidding process system. An auction house The private individual or company managing the house, usually offer services such as clearances, collection of items, shipping, while also advising through valuations ...
Desert glass may refer to: Libyan desert glass, in Egypt and Libya; Atacama desert glass, in Chile; Edeowie glass, in South Australia; Darwin glass, in West Coast, Tasmania; Fulgurite, lumps of glass formed by lightning; Trinitite, a more specialised subclass is that formed during a nuclear explosion
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Normally, an auction catalog, that lists the art works to be sold, is written and made available well before the auction date. Some of the best known auction houses are Christie's and Sotheby's. The oldest auction house is Stockholm Auction House (Stockholms Auktionsverk). It was established in Sweden in 1674.