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Pink Lake (Canada)
Pink Lake is a meromictic lake located in Gatineau Park, Quebec, Canada. The surface of the waters are a deep green during the month of August and September due to the abundance of algae in the water. The lake is in danger of eutrophication due to human activities. Park management forbids swimming in the lake, walking domestic animals near it, straying from the wooden boardwalk for sight-seers, and throwing stones into the lake. History Pink Lake is named after a family of Irish settlers who in 1826 cleared a farm in the area. It used to be a salt water lake as a part of the oceans. It took over 3000 years for the lake to turn from salt water to fresh water (generally a lake of this size shouldn't take over a few decades) and as a result some of the salt water fishes adapted to fresh water. Properties Due to the meromictic properties of Pink Lake there are ancient forms of bacteria which use sulfur instead of oxygen to perform photosynthesis. These bacteria form a layer abou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gatineau Park
Gatineau Park (french: Parc de la Gatineau) is a federal park located in the Outaouais region of Quebec, Canada. Administered by the National Capital Commission as part of the National Capital Region, Gatineau Park is a wedge of land extending north and west from the city of Gatineau. With a perimeter of , the park includes parts of the municipalities of Chelsea, Pontiac, La Pêche, and the City of Gatineau. The main entrance to the park is north of downtown Ottawa, Ontario. The park's area has a long history of human inhabitation and usage predating the arrival of European settlers. Its more recent pre-park history includes various forms of human exploitation such as farming, logging, hunting, and industrial activity. The idea of creating a park in the Gatineau Hills for recreational purposes was proposed as early as 1903. In 1938 money was allotted for the acquisition of Gatineau woodlands (for preservation) and the construction of a parkway. The Government of Canada main ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfur
Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Elemental sulfur is a bright yellow, crystalline solid at room temperature. Sulfur is the tenth most abundant element by mass in the universe and the fifth most on Earth. Though sometimes found in pure, native form, sulfur on Earth usually occurs as sulfide and sulfate minerals. Being abundant in native form, sulfur was known in ancient times, being mentioned for its uses in ancient India, ancient Greece, China, and ancient Egypt. Historically and in literature sulfur is also called brimstone, which means "burning stone". Today, almost all elemental sulfur is produced as a byproduct of removing sulfur-containing contaminants from natural gas and petroleum.. Downloahere The greatest commercial use of the element is the production o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakes Of Outaouais
A lake is an area filled with water, localized in a Depression (geology), basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the World Ocean, ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glacier, glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic dra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Independent
''The Independent'' is a British online newspaper. It was established in 1986 as a national morning printed paper. Nicknamed the ''Indy'', it began as a broadsheet and changed to tabloid format in 2003. The last printed edition was published on Saturday 26 March 2016, leaving only the online edition. The newspaper was controlled by Tony O'Reilly's Irish Independent News & Media from 1997 until it was sold to the Russian oligarch and former KGB Officer Alexander Lebedev in 2010. In 2017, Sultan Muhammad Abuljadayel bought a 30% stake in it. The daily edition was named National Newspaper of the Year at the 2004 British Press Awards. The website and mobile app had a combined monthly reach of 19,826,000 in 2021. History 1986 to 1990 Launched in 1986, the first issue of ''The Independent'' was published on 7 October in broadsheet format.Dennis Griffiths (ed.) ''The Encyclopedia of the British Press, 1422–1992'', London & Basingstoke: Macmillan, 1992, p. 330 It was produc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fred Vargas
Fred Vargas is the pseudonym of Frédérique Audoin-Rouzeau (born 7 June 1957), a French historian, archaeologist and novelist. As a historian and archeologist, she is known for her work on the Black Death. Her crime fiction ''policiers'' ( police procedurals) have won three International Dagger Awards from the Crime Writers Association, for three successive novels: in 2006, 2008 and 2009. She is the first author to achieve such an honour. In each case, her translator into English was Siân Reynolds, who was also recognized by the international award. Career as archaeologist Audoin-Rouzeau worked at the French National Centre for Scientific Research (CNRS), which she joined in 1988. She later joined the Institut Pasteur, as a eukaryotic archaeologist. She has undertaken a project on the epidemiology of the Black Death and bubonic plague, the result of which was a work considered definitive in the research area: ''Les chemins de la peste'' (Routes of the Plague) (2003). C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wash This Blood Clean From My Hand
{{Infobox book , , name = Wash This Blood Clean from My Hand , title_orig = Sous les vents de Neptune , translator = Sian Reynolds , image = Washthisbloodcleanfrommyhand.jpg , caption = First edition (French) , author = Fred Vargas , cover_artist = , country = France , language = French , series = Commissaire Adamsberg , genre = Crime novel , publisher = Viviane Hamy (French) The Harvill Press (English) , release_date = 2004 , english_pub_date = January 2007 , media_type = Print (Paperback) , pages = 441 pp (French) 388 pp (English) , isbn = 2-87858-190-3 , isbn_note= (French) {{ISBN, 1-84343-273-0 (English) , congress= PQ2682.A725 S68 2004 , oclc= 54929205 , preceded_by = Have Mercy on Us All , followed_by = This Night's Foul Work ''Wash This Blood Clean From My Hand'' (french: Sous les vents de Neptune, lit. "Under Neptune's Winds") is a crime novel by French author Fred V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three-spined Stickleback
The three-spined stickleback (''Gasterosteus aculeatus'') is a fish native to most inland and coastal waters north of 30°N. It has long been a subject of scientific study for many reasons. It shows great morphological variation throughout its range, ideal for questions about evolution and population genetics. Many populations are anadromous (they live in seawater but breed in fresh or brackish water) and very tolerant of changes in salinity, a subject of interest to physiologists. It displays elaborate breeding behavior (defending a territory, building a nest, taking care of the eggs and fry) and it can be social (living in shoals outside the breeding season) making it a popular subject of inquiry in fish ethology and behavioral ecology. Its antipredator adaptations, host-parasite interactions, sensory physiology, reproductive physiology, and endocrinology have also been much studied. Facilitating these studies is the fact that the three-spined stickleback is easy to find in natur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water – hence the name ''photosynthesis'', from the Greek ''phōs'' (), "light", and ''synthesis'' (), "putting together". Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth. Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centers that contain green chlorophyll (and other colored) pigments/chromoph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationsh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gatineau
Gatineau ( ; ) is a city in western Quebec, Canada. It is located on the northern bank of the Ottawa River, immediately across from Ottawa, Ontario. Gatineau is the largest city in the Outaouais administrative region and is part of Canada's National Capital Region. As of 2021, Gatineau is the fourth-largest city in Quebec with a population of 291,041, and a census metropolitan area population of 1,488,307. Gatineau is coextensive with a territory equivalent to a regional county municipality (TE) and census division (CD) of the same name, whose geographical code is 81. It is the seat of the judicial district of Hull. History The current city of Gatineau is centred on an area formerly called Hull. It is the oldest European colonial settlement in the National Capital Region, but this area was essentially not developed by Europeans until after the American Revolutionary War, when the Crown made land grants to Loyalists for resettlement in Upper Canada. Hull was founded on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutrophication
Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytoplankton productivity". Water bodies with very low nutrient levels are termed oligotrophic and those with moderate nutrient levels are termed mesotrophic. Advanced eutrophication may also be referred to as dystrophic and hypertrophic conditions. Eutrophication can affect freshwater or salt water systems. In freshwater ecosystems it is almost always caused by excess phosphorus. In coastal waters on the other hand, the main contributing nutrient is more likely to be nitrogen, or nitrogen and phosphorus together. This depends on the location and other factors. When occurring naturally, eutrophication is a very slow process in which nutrients, especially phosphorus compounds and organic matter, accumulate in water bodies. These nutrients deriv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algae
Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as ''Chlorella,'' ''Prototheca'' and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to in length. Most are aquatic and autotrophic (they generate food internally) and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem that are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the ''Charophyta'', a division of green algae which includes, for example, ''Spirogyra'' and stoneworts. No definition of algae is generally accepted. One definition is that algae "have chlorophyll ''a'' as their primary photosynthetic pigment and lack a sterile covering of cells around thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
