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The Underground Eiger
''The Underground Eiger'' is a made-for-television documentary that was released in 1979. It details a world record-breaking cave dive of made by Geoff Yeadon and Oliver Statham from West Kingsdale Master Cave, in North Yorkshire, England to Keld Head. An estimated 20 million viewers watched its television debut. It has been called "legendary in caving folklore," and notable cave diver Rick Stanton cites it as the impetus that sparked his interest in cave diving. Background Geoff Yeadon and Oliver "Bear" Statham began to systematically explore Keld Head in 1975. Derek Crossland found the body of Alan Erith on 4 July 1975. His body was recovered by Crossland, Yeadon, and Statham the following day. Over the years the two divers, in addition to others, explored both the Keld Head and West Kingsdale Master Cave systems. Exploration was complicated by constricted passageways, low visibility due to silt, and shortage of airbells (pockets of air) in which to swap out air cylinders. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barry Cockcroft
Barry Cockcroft (4 October 1932 – 4 February 2001) was a UK television documentary director, writer and producer. He is best known for his documentary ''Too Long A Winter'' about the spinster Hannah Hauxwell who lived alone on a remote farm in the Pennines. Cockcroft was born in Rochdale, Lancashire. After leaving school he started work as a proof-reader on the ''Rochdale Observer'' and he soon became a reporter and a feature writer.Guardian Obituary Barry Cockcroft 9 February 2001 Retrieved 29 October 2014 A researcher at at its inception in 1968, he was making short films about people who lived in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distance Line
A distance line, penetration line, cave line or guide line is an item of diving equipment used by scuba divers as a means of returning to a safe starting point in conditions of low visibility, water currents or where pilotage is difficult. They are often used in cave diving and wreck diving where the diver must return to open water after a penetration when it may be difficult to discern the return route. Guide lines are also useful in the event of silt out. Distance lines are wound on to a spool or a reel. The length of the distance line used is dependent on the plan for the dive. An open water diver using the distance line only for a surface marker buoy may only need , whereas a cave diver may use multiple reels of lengths from to 1000+ ft (300 m). Reels for distance lines may have a locking mechanism, ratchet or adjustable drag to control deployment of the line and a winding handle to help keep slack line under control and rewind line. Lines are used in open water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photographic Film
Photographic film is a strip or sheet of transparent film base coated on one side with a gelatin photographic emulsion, emulsion containing microscopically small light-sensitive silver halide crystals. The sizes and other characteristics of the crystals determine the sensitivity, contrast, and image resolution, resolution of the film. The emulsion will gradually darken if left exposed to light, but the process is too slow and incomplete to be of any practical use. Instead, a very short exposure (photography), exposure to the image formed by a camera lens is used to produce only a very slight chemical change, proportional to the amount of light absorbed by each crystal. This creates an invisible latent image in the emulsion, which can be chemically photographic processing, developed into a visible photograph. In addition to visible light, all films are sensitive to ultraviolet light, X-rays, gamma rays, and particle radiation, high-energy particles. Unmodified silver halide crys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camera Operator
A camera operator, or depending on the context cameraman or camerawoman, is a professional operator of a film camera or video camera as part of a film crew. The term "cameraman" does not imply that a male is performing the task. In filmmaking, the cinematographer or director of photography (DP or DoP) is sometimes called lighting cameraman or first cameraman. The DP may operate the camera themselves, or enlist the aid of a camera operator or second cameraman to operate it or set the controls. The first assistant cameraman (1st AC), also known as a focus puller, is responsible for maintenance of the camera, such as clearing dirt from the film gate and adjusting the follow focus. A second assistant cameraman (2nd AC), also known as a clapper loader, might be employed to load film, slate scenes, or maintain the camera report (a log of scenes, takes, rolls, photographic filters used, and other production data). A camera operator in a video production may be known by titles like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Show Me The Way To Go Home
"Show Me the Way to Go Home" is a popular song written in 1925 by the English songwriting team Jimmy Campbell and Reg Connelly, using the pseudonym "Irving King". The song is said to have been written on a train journey from London by Campbell and Connelly. They were tired from the traveling and had a few alcoholic drinks during the journey, hence the lyrics. The song is in common use in England, Ireland, Scotland, Wales and North America. Publication The music and lyrics were written in 1925 by Jimmy Campbell and Reg Connelly. They self-published the sheet music and it became their first big success, selling 2 million copies and providing the financial basis of their publishing firm, Campbell, Connelly & Co. Campbell and Connelly published the sheet music and recorded the song under the pseudonym "Irving King". The song was recorded by several artists in the 1920s. The first recordings, in 1925, were by Hal Swain's New Princes' Toronto Band – a group of Canadian musician ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diving Regulator
A diving regulator is a pressure regulator that controls the pressure of breathing gas for diving. The most commonly recognised application is to reduce pressurized breathing gas to ambient pressure and deliver it to the diver, but there are also other types of gas pressure regulator used for diving applications. The gas may be air or one of a variety of specially blended breathing gases. The gas may be supplied from a scuba cylinder carried by the diver or via a hose from a compressor or high-pressure storage cylinders at the surface in surface-supplied diving. A gas pressure regulator has one or more valves in series which reduce pressure from the source, and use the downstream pressure as feedback to control the delivered pressure, or the upstream pressure as feedback to prevent excessive flow rates, lowering the pressure at each stage. The terms "regulator" and "demand valve" are often used interchangeably, but a demand valve is the final stage pressure-reduction regulator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speleophone
Through-the-Earth (TTE) signalling is a type of radio signalling used in mines and caves that uses low-frequency waves to penetrate dirt and rock, which are opaque to higher-frequency conventional radio signals. In mining, these lower-frequency signals can be relayed underground through various antennas, repeater or mesh configurations, but communication is restricted to line of sight to these antenna and repeaters systems. Overview Radio communication within caves is problematic because rock is a conductor and therefore absorbs radio waves. Ordinary radios typically have a very short range within caves. Low frequency (LF) or very low frequency (VLF) radio with single-sideband modulation is more commonly used today. Through-the-Earth transmission can overcome these restrictions by using ultra-low frequency (300–3000 Hz) signals, which can travel through several hundred feet of rock strata. The antenna cable can be located on the surface only at a mine site, and provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molefone
Through-the-Earth (TTE) signalling is a type of radio signalling used in mines and caves that uses low-frequency waves to penetrate dirt and rock, which are opaque to higher-frequency conventional radio signals. In mining, these lower-frequency signals can be relayed underground through various antennas, repeater or mesh configurations, but communication is restricted to line of sight to these antenna and repeaters systems. Overview Radio communication within caves is problematic because rock is a conductor and therefore absorbs radio waves. Ordinary radios typically have a very short range within caves. Low frequency (LF) or very low frequency Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km, respectively. The band is also known as the myriameter band or myriameter wave a ... (VLF) radio with single-sideband modulation is more commonly used today. Through-t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subterranean River
A subterranean river is a river that runs wholly or partly beneath the ground surface – one where the riverbed does not represent the surface of the Earth. It is distinct from an aquifer, which may flow like a river but is contained within a permeable layer of rock or other unconsolidated materials. A river flowing below ground level in an open gorge is not classed as subterranean. Subterranean rivers may be entirely natural, flowing through cave systems. In karst topography, rivers may disappear through sinkholes, continuing underground. In some cases, they may emerge into daylight further downstream. The longest subterranean river in the world is the Sistema Sac Actun cave system in Mexico. Subterranean rivers can also be the result of covering over a river or diverting its flow into culverts, usually as part of urban development.Richard J. Heggen: Underground Rivers from the River Styx to the Rio San Buenaventura with Occasional Diversions'', University of New Mexico. Rever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Lune
The River Lune (archaically sometimes Loyne) is a river in length in Cumbria and Lancashire, England. Etymology Several elucidations for the origin of the name ''Lune'' exist. Firstly, it may be that the name is Brittonic in genesis and derived from ''*lǭn'' meaning "full, abundant", or "healthy, pure" (c.f. Old Irish ''slán'', Welsh ''llawn''). Secondly, ''Lune'' may represent Old English ''Ēa Lōn'' (''ēa'' = "river") as a phonetic adaptation of a Romano-British name referring to a Romano-British god Ialonus who was worshipped in the area. Springs The river begins as a stream at Newbiggin, in the parish of Ravenstonedale, Cumbria, at St. Helen's Well (elevation of above sea level) and some neighbouring springs. On the first two miles of its course, it is joined by four streams, two of them as short as itself, but two much longer. These are the Bessy Beck (short), the Dry Beck of 4.9 kilometres' (three miles) length at from St. Helen's Well, the Sandwath Beck (s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eiger
The Eiger () is a mountain of the Bernese Alps, overlooking Grindelwald and Lauterbrunnen in the Bernese Oberland of Switzerland, just north of the main watershed and border with Valais. It is the easternmost peak of a ridge crest that extends across the Mönch to the Jungfrau at , constituting one of the most emblematic sights of the Swiss Alps. While the northern side of the mountain rises more than 3,000 m (10,000 ft) above the two valleys of Grindelwald and Lauterbrunnen, the southern side faces the large glaciers of the Jungfrau-Aletsch area, the most glaciated region in the Alps. The most notable feature of the Eiger is its nearly north face of rock and ice, named ''Eiger-Nordwand'', ''Eigerwand'' or just ''Nordwand'', which is the biggest north face in the Alps. This huge face towers over the resort of Kleine Scheidegg at its base, on the eponymous pass connecting the two valleys. The first ascent of the Eiger was made by Swiss guides Christian Almer and Peter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
