Asphalt, also known as bitumen, is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used. The word is derived from the Ancient Greek ἄσφαλτος ásphaltos. The largest natural deposit of asphalt in the world, estimated to contain 10 million tons, is the Pitch Lake located in La Brea in southwest Trinidad, within the Siparia Regional Corporation.
Olney–Pauncefote Treaty
The Olney–Pauncefote Treaty of 1897 was a proposed treaty between the United States and Britain in 1897 that would have required arbitration of major disputes. The treaty was rejected by the US Senate and never went into effect
Asphalt concrete
Asphalt concrete is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. Asphalt mixtures have been used in pavement construction since the beginning of the twentieth century. It consists of mineral
The Garden Village, Kingston upon Hull
The Garden Village is an area of model village housing built in the early 1900s, in the Summergangs area of Kingston upon Hull, England, for the workers of Reckitt & Sons
Schikorr reaction
The Schikorr reaction formally describes the conversion of the iron(II) hydroxide (Fe(OH)2) into iron(II,III) oxide (Fe3O4). This transformation reaction was first studied by Gerhard Schikorr. The global reaction follows
Summergangs, Kingston upon Hull
Summergangs is a suburb of Kingston upon Hull, near the A165 road, in the East Riding of Yorkshire, England. The area contains the model village development known as The Garden Village and East Park
NMBS/SNCB I11 coach
The I11 is a type of passenger car used since 1995 in the network of the Belgian railway company NMBS/SNCB for long distance (InterCity) trains
History of women in Germany
History of Germanic women covers gender roles, personalities and movements from medieval times to the present in German-speaking lands
Ateliers de Constructions Mécaniques de Vevey
Ateliers de constructions mécaniques de Vevey (ACMV) was a metal engineering company based in Vevey, Switzerland. Founded as Ateliers B. Roy & Cie. in 1848 by Benjamin Roy it became Ateliers de constructions mécaniques de Vevey SA in 1895
Ecological regression
Ecological regression is a statistical technique used especially in political science and history to estimate group voting behavior from aggregate data. For example, if counties have a known Democratic vote D, and a known percentage of Catholics, C, then
Pohlia nutans
Pohlia nutans, the nodding thread-moss, is a species of moss in the family Mniaceae. It has a cosmopolitan distribution, found on all seven continents; Europe, Iceland, Siberia, Japan, North America, Greenland, the Andes of South America, South Africa