|
Whittle Rock
Whittle Rock is a granite corestone reef and navigation hazard in False Bay, Western Cape, South Africa. The reef rises from a sandy bottom at about 40 m, to a minimum depth of 3.2 m, and is a well known fishing site and recreational diving area. It has an area of about 1 km2, and can affect the waves at the shore in Kalk Bay in special conditions of a long southeasterly swell. It is marked by a cardinal east buoy with sound and light signals. Location and extent Whittle Rock is about 8 km to the east of Miller's Point, Western Cape, Miller's Point which is on the coast of the Cape Peninsula just south of Simon's Town, on the west side of False Bay, at The contiguous reef is a bit over 1 km east to west, and a bit under 1 km north to south. There are several outliers in the order of 100 m size range, within 100m of the main reef, and a lot more that are smaller. Several other granite outcrops and clusters of smaller size and greater depth exist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corestone
Spheroidal weathering is a form of chemical weathering that affects Joint (geology), jointed bedrock and results in the formation of concentric or spherical layers of highly decayed rock within weathered bedrock that is known as ''saprolite.'' When saprolite is exposed by physical erosion, these concentric layers peel (spall) off as concentric shells much like the layers of a peeled onion. Within saprolite, spheroidal weathering often creates rounded boulders, known as ''corestones'' or ''woolsack'', of relatively unweathered rock. Spheroidal weathering is also called onion skin weathering, concentric weathering, spherical weathering, or woolsack weathering.Fairbridge, RW (1968) ''Spheroidal Weathering.'' in RW Fairbridge, ed., pp. 1041–1044, The Encyclopedia of Geomorphology, Encyclopedia of Earth Sciences, vol. III. Reinhold Book Corporation, New York, New York.Cliff Ollier, Ollier, C.D. (1971). ''Causes of spheroidal weathering. ''Earth-Science Reviews 7:127–141.Neuendor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mica
Micas ( ) are a group of silicate minerals whose outstanding physical characteristic is that individual mica crystals can easily be split into extremely thin elastic plates. This characteristic is described as perfect basal cleavage. Mica is common in igneous and metamorphic rock and is occasionally found as small flakes in sedimentary rock. It is particularly prominent in many granites, pegmatites, and schists, and "books" (large individual crystals) of mica several feet across have been found in some pegmatites. Micas are used in products such as drywalls, paints, fillers, especially in parts for automobiles, roofing and shingles, as well as in electronics. The mineral is used in cosmetics and food to add "shimmer" or "frost." Properties and structure The mica group is composed of 37 phyllosilicate minerals. All crystallize in the monoclinic system, with a tendency towards pseudohexagonal crystals, and are similar in structure but vary in chemical composition. Micas are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recreational Dive Sites
Recreational dive sites are specific places that recreational scuba divers go to enjoy the underwater environment or for training purposes. They include technical diving sites beyond the range generally accepted for recreational diving. In this context all diving done for recreational purposes is included. Professional diving tends to be done where the job is, and with the exception of diver training and Dive leader, leading groups of recreational divers, does not generally occur at specific sites chosen for their easy access, pleasant conditions or interesting features. Recreational dive sites may be found in a wide range of bodies of water, and may be popular for various reasons, including accessibility, biodiversity, spectacular topography, historical or cultural interest and artifacts (such as shipwrecks), and water clarity. Tropical waters of high biodiversity and colourful sea life are popular recreational diving vacation destinations. South-east Asia, the Caribbean islands, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Gully East Of The Bus Stop Overhang P6230236
''The'' () is a grammatical Article (grammar), article in English language, English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the Most common words in English, most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when fol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recreational Scuba Diving
Recreational diving or sport diving is diving for the purpose of leisure and enjoyment, usually when using scuba equipment. The term "recreational diving" may also be used in contradistinction to "technical diving", a more demanding aspect of recreational diving which requires more training and experience to develop the competence to reliably manage more complex equipment in the more hazardous conditions associated with the disciplines. Breath-hold diving for recreation also fits into the broader scope of the term, but this article covers the commonly used meaning of ''scuba diving for recreational purposes, where the diver is not constrained from making a direct near-vertical ascent to the surface at any point during the dive'', and risk is considered low. The equipment used for recreational diving is mostly open circuit scuba, though semi closed and fully automated electronic closed circuit rebreathers may be included in the scope of recreational diving. Risk is managed by tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Fetch
In oceanography wind fetch, also known as fetch length or simply fetch, is the length of water over which a given wind Wind is the natural movement of air or other gases relative to a planet's surface. Winds occur on a range of scales, from thunderstorm flows lasting tens of minutes, to local breezes generated by heating of land surfaces and lasting a few hou ... has blown without obstruction. Fetch is used in geography and meteorology and its effects are usually associated with sea state and when it reaches shore it is the main factor that creates storm surge which leads to coastal erosion and flooding. It also plays a large part in longshore drift. Fetch length, along with the wind speed (wind strength), and duration, determines the size (sea state) of ocean surface wave, waves produced. If the wind direction is constant, the longer the fetch and the greater the wind speed, the more wind energy is transferred to the water surface and the larger the resulting sea state wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cut-off Low
A cut-off low (or cutoff low), sometimes referred to as the weatherman's woe, is defined as "a closed upper-level low which has become completely displaced (cut off) from basic westerly current, and moves independently of that current" by the National Weather Service. Cut-off lows form in mid-latitudes (usually in the subtropics or between 20° and 45°) and would remain nearly stationary for days. Formation A cut-off low is a cold-core low where wind in the upper levels of the troposphere is "cut off"" from the primary westerly winds of the jet stream. They are formed when a trough in the upper-air flow pinches off and separates into a closed circulation. It is defined by concentric isotherms around the core of the low. Because they are a feature of the mid- to upper-troposphere, they may not be visible on a surface weather analysis. Because they are separated from the main westerly flow, cut-off lows can move slowly and erratically. In certain arrangements, known as a block o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kalk Bay
Kalk Bay (Afrikaans: ''Kalkbaai'') is a fishing village on the coast of False Bay, South Africa and is now a suburb of greater Cape Town. It lies between the ocean and sharply rising mountainous heights that are buttressed by crags of grey Table Mountain Sandstone.Compton, J.S. (2004).''The Rocks and Mountains of Cape Town''. p. 24-26, 44-70. Double Storey Books, Cape Town. . The railway from Cape Town to Simon's Town passes through Kalk Bay and in some places the line is only metres from the water's edge. In 2018 Forbes Magazine voted the neighborhood one of the "coolest in the world". History The foundation stone for the harbour was laid in 1913. A literal translation from the Dutch/Afrikaans name "Kalkbaai" is "Lime Bay". This derives from the vast deposits of mussel shells found there, which early settlers burned to make lime for construction. Lime kilns to roast mussel shells are still found along the west coast. Several famous caves (with names such as 'Boomslang Cave' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whittle Rock Navigational Buoy 2021 P8070409
Whittle may refer to: Crafts * Whittling, the carving of wood with a knife People *Whittle (name), a surname, and a list of people with the name Places *Whittle, Kentucky * Whittle, Derbyshire, a hamlet near Glossop, Derbyshire, United Kingdom * Whittle-le-Woods, a village in Lancashire Companies * Whittle Shortline US toy company * Whittles, a bus company in England TV shows * Whittle (game show) ''Everybody's Equal'' is a game show that originally aired on ITV from 7 June 1989 to 22 July 1991 and hosted by Chris Tarrant. It was later revived under the name ''Whittle'' and aired on Channel 5 from 31 March to 30 December 1997 with Tim V ... short-lived UK gameshow from 1997 Aviation * Gloster Whittle the first British jet aircraft * Whittle Unit jet engine * Whittle W1 jet engine * Whittle W2 jet engine See also * Justice Whittle (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Indiaman
East Indiaman was a general name for any sailing ship operating under charter or licence to any of the East India trading companies of the major European trading powers of the 17th through the 19th centuries. The term is used to refer to vessels belonging to the Austrian, Danish, Dutch, English, French, Portuguese, or Swedish companies. Some of the East Indiamen chartered by the British East India Company were known as "tea clippers". In Britain, the East India Company held a monopoly granted to it by Queen Elizabeth I of England in 1600 for all English trade between the Cape of Good Hope and Cape Horn. This grant was progressively restricted during the late 18th and early 19th centuries, until the monopoly was lost in 1834. English (later British) East Indiamen usually ran between England, the Cape of Good Hope and India, where their primary destinations were the ports of Bombay, Madras and Calcutta. The Indiamen often continued on to China before returning to England via t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasion Of The Cape Colony
The Invasion of the Cape Colony, also known as the Battle of Muizenberg, was a British military expedition launched in 1795 against the Dutch Cape Colony at the Cape of Good Hope. The Dutch colony at the Cape, established and controlled by the United East India Company in the seventeenth century, was at the time the only viable South African port for ships making the journey from Europe to the European colonies in the East Indies. It therefore held vital strategic importance, although it was otherwise economically insignificant. In the winter of 1794, during the French Revolutionary Wars, French troops entered the Dutch Republic, which was reformed into the Batavian Republic. In response, Great Britain launched operations against the Dutch Empire to use its facilities against the French Navy. The British expedition was led by Vice-Admiral Sir George Keith Elphinstone and sailed in April 1795, arriving off Simon's Town at the Cape in June. Attempts were made to negotiate a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simon Van Der Stel
Simon van der Stel (14 October 1639 – 24 June 1712) was the last commander and first Governor of the Dutch Cape Colony, the settlement at the Cape of Good Hope. Background Simon was the son of Adriaan van der Steland Maria Lievens, an official of the Dutch East India Company (VOC). Adriaan was appointed the first Dutch governor of Mauritius in 1639. Simon was born at sea while his father was en route to Mauritius to take up his new posting. Adriaan had a long tenure in Mauritius, and Simon spent seven years there. His mother was Maria Lievens, daughter of a freed Indian slave woman known as Monica of the Coast of Goa, or Monica da Costa. Adriaan's governorship ended after five years, and after a few more years, Adriaan left Mauritius for Dutch Ceylon. Adriaan was murdered in Ceylon and Maria also died. Simon went on to Batavia, capital of the Dutch East Indies, where he remained until he was 20 years old. Career He then went to the United Provinces, where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> The Gully East Of The Bus Stop Overhang P6230236")
