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= = Reforming the Breeders = =
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Later in 1996 , Deal changed the name of the group back to the Breeders , originally with almost the same line @-@ up as the Amps . Until then , Deal had been waiting for Wiggs and Kelley to rejoin the Breeders and record a new album together , and had held back from reforming the Breeders out of respect for them . In...
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By 1998 , Kelley had rejoined and Macpherson had left the group , and by 2000 Lerma and Farley had also left . The Breeders , with a line @-@ up including the Deal sisters and new members Mando Lopez and Jose Medeles , released the albums Title TK in 2002 and Mountain Battles in 2008 . Meanwhile , Macpherson was a mem...
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= = Members = =
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Kim Deal – vocals , guitars
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Luis Lerma – bass
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Nate Farley – guitars
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Jim Macpherson – drums
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= = Discography = =
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= = = Album = = =
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= = = Single = = =
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= Exploration of Jupiter =
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The exploration of Jupiter has been conducted via close observations by automated spacecraft . It began with the arrival of Pioneer 10 into the Jovian system in 1973 , and , as of 2016 , has continued with eight further spacecraft missions . All of these missions were undertaken by the National Aeronautics and Space A...
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The first spacecraft to visit Jupiter was Pioneer 10 in 1973 , followed a year later by Pioneer 11 . Aside from taking the first close @-@ up pictures of the planet , the probes discovered its magnetosphere and its largely fluid interior . The Voyager 1 and Voyager 2 probes visited the planet in 1979 , and studied its...
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The Galileo spacecraft was the first to have entered orbit around Jupiter , arriving in 1995 and studying the planet until 2003 . During this period Galileo gathered a large amount of information about the Jovian system , making close approaches to all of the four large Galilean moons and finding evidence for thin atm...
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In July 2016 , the Juno spacecraft , launched in 2011 , completed its orbital insertion maneuver successfully , and is now in orbit around Jupiter and preparing for its science programme .
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The European Space Agency selected the L1 @-@ class JUICE mission in 2012 as part of its Cosmic Vision programme to explore three of Jupiter 's Galilean moons , with a possible Ganymede lander provided by Roscosmos . JUICE is proposed to be launched in 2022 .
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= = Technical requirements = =
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Flights from Earth to other planets in the Solar System have a high energy cost . It requires almost the same amount of energy for a spacecraft to reach Jupiter from Earth 's orbit as it does to lift it into orbit in the first place . In astrodynamics , this energy expenditure is defined by the net change in the space...
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A major problem in sending space probes to Jupiter is that the planet has no solid surface on which to land , as there is a smooth transition between the planet 's atmosphere and its fluid interior . Any probes descending into the atmosphere are eventually crushed by the immense pressures within Jupiter .
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Another major issue is the amount of radiation to which a space probe is subjected , due to the harsh charged @-@ particle environment around Jupiter ( for a detailed explanation see Magnetosphere of Jupiter ) . For example , when Pioneer 11 made its closest approach to the planet , the level of radiation was ten time...
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= = Flyby missions = =
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= = = Pioneer program ( 1973 and 1974 ) = = =
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The first spacecraft to explore Jupiter was Pioneer 10 , which flew past the planet in December 1973 , followed by Pioneer 11 twelve months later . Pioneer 10 obtained the first @-@ ever close @-@ up images of Jupiter and its Galilean moons ; the spacecraft studied the planet 's atmosphere , detected its magnetic fiel...
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= = = Voyager program ( 1979 ) = = =
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Voyager 1 began photographing Jupiter in January 1979 and made its closest approach on March 5 , 1979 , at a distance of 349 @,@ 000 km from Jupiter 's center . This close approach allowed for greater image resolution , though the flyby 's short duration meant that most observations of Jupiter 's moons , rings , magne...
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The Voyager missions vastly improved our understanding of the Galilean moons , and also discovered Jupiter 's rings . They also took the first close @-@ up images of the planet 's atmosphere , revealing the Great Red Spot as a complex storm moving in a counter @-@ clockwise direction . Other smaller storms and eddies ...
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The discovery of volcanic activity on the moon Io was the greatest unexpected finding of the mission , as it was the first time an active volcano was observed on a celestial body other than Earth . Together , the Voyagers recorded the eruption of nine volcanoes on Io , as well as evidence for other eruptions occurring...
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Europa displayed a large number of intersecting linear features in the low @-@ resolution photos from Voyager 1 . At first , scientists believed the features might be deep cracks , caused by crustal rifting or tectonic processes . The high @-@ resolution photos from Voyager 2 , taken closer to Jupiter , left scientist...
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= = = Ulysses ( 1992 ) = = =
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On February 8 , 1992 , the Ulysses solar probe flew past Jupiter 's north pole at a distance of 451 @,@ 000 km . This swing @-@ by maneuver was required for Ulysses to attain a very high @-@ inclination orbit around the Sun , increasing its inclination to the ecliptic to 80 @.@ 2 degrees . The giant planet 's gravity ...
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= = = Cassini ( 2000 ) = = =
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In 2000 , the Cassini probe , en route to Saturn , flew by Jupiter and provided some of the highest @-@ resolution images ever taken of the planet . It made its closest approach on December 30 , 2000 , and made many scientific measurements . About 26 @,@ 000 images of Jupiter were taken during the months @-@ long flyb...
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A major finding of the flyby , announced on March 6 , 2003 , was of Jupiter 's atmospheric circulation . Dark belts alternate with light zones in the atmosphere , and the zones , with their pale clouds , had previously been considered by scientists to be areas of upwelling air , partly because on Earth clouds tend to ...
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Other atmospheric observations included a swirling dark oval of high atmospheric @-@ haze , about the size of the Great Red Spot , near Jupiter 's north pole . Infrared imagery revealed aspects of circulation near the poles , with bands of globe @-@ encircling winds , and adjacent bands moving in opposite directions ....
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= = = New Horizons ( 2007 ) = = =
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The New Horizons probe , en route to Pluto , flew by Jupiter for a gravity assist and was the first probe launched directly towards Jupiter since the Ulysses in 1990 . Its Long Range Reconnaissance Imager ( LORRI ) took its first photographs of Jupiter on September 4 , 2006 . The spacecraft began further study of the ...
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Although close to Jupiter , New Horizons ' instruments made refined measurements of the orbits of Jupiter 's inner moons , particularly Amalthea . The probe 's cameras measured volcanoes on Io , studied all four Galilean moons in detail , and made long @-@ distance studies of the outer moons Himalia and Elara . The cr...
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On March 19 , 2007 the Command and Data Handling computer experienced an uncorrectable memory error and rebooted itself , causing the spacecraft to go into safe mode . The craft fully recovered within two days , with some data loss on Jupiter 's magnetotail . No other data loss events were associated with the encounte...
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= = Orbiter missions = =
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= = = Galileo ( 1995 – 2003 ) = = =
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The first spacecraft to orbit Jupiter was the Galileo orbiter , which went into orbit around Jupiter on December 7 , 1995 . It orbited the planet for over seven years , making 35 orbits before it was destroyed during a controlled impact with Jupiter on September 21 , 2003 . During this period , it gathered a large amo...
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Cameras on the Galileo spacecraft observed fragments of Comet Shoemaker – Levy 9 between 16 and 22 July 1994 as they collided with Jupiter 's southern hemisphere at a speed of approximately 60 kilometres per second . This was the first direct observation of an extraterrestrial collision of solar system objects . While...
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An atmospheric probe was released from the spacecraft in July 1995 , entering the planet 's atmosphere on December 7 , 1995 . After a high @-@ g descent into the Jovian atmosphere , the probe discarded the remains of its heat shield , and it parachuted through 150 km of the atmosphere , collecting data for 57 @.@ 6 mi...
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Major scientific results of the Galileo mission include :
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the first observation of ammonia clouds in another planet 's atmosphere β€” the atmosphere creates ammonia ice particles from material coming up from lower depths ;
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confirmation of extensive volcanic activity on Io β€” which is 100 times greater than that found on Earth ; the heat and frequency of eruptions are reminiscent of early Earth ;
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observation of complex plasma interactions in Io 's atmosphere which create immense electrical currents that couple to Jupiter 's atmosphere ;
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providing evidence for supporting the theory that liquid oceans exist under Europa 's icy surface ;
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first detection of a substantial magnetic field around a satellite ( Ganymede ) ;
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magnetic data evidence suggesting that Europa , Ganymede and Callisto have a liquid @-@ saltwater layer under the visible surface ;
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evidence for a thin atmospheric layer on Europa , Ganymede , and Callisto known as a ' surface @-@ bound exosphere ' ;
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understanding of the formation of the rings of Jupiter ( by dust kicked up as interplanetary meteoroids which smash into the planet 's four small inner moons ) and observation of two outer rings and the possibility of a separate ring along Amalthea 's orbit ;
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identification of the global structure and dynamics of a giant planet 's magnetosphere .
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On December 11 , 2013 , NASA reported , based on results from the Galileo mission , the detection of " clay @-@ like minerals " ( specifically , phyllosilicates ) , often associated with organic materials , on the icy crust of Europa , moon of Jupiter . The presence of the minerals may have been the result of a collis...
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= = = Juno ( 2016 ) = = =
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NASA launched Juno on August 5 , 2011 to study Jupiter in detail from a polar orbit when it arrives in 2016 . The spacecraft will be placed in a polar orbit to study the planet 's composition , gravity field , magnetic field , and polar magnetosphere . Juno will also search for clues about how Jupiter formed , includi...
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= = = Jupiter Icy Moon Explorer ( 2022 ) = = =
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ESA 's Jupiter Icy Moon Explorer ( JUICE ) has been selected as part of ESA 's Cosmic Vision science program . It is expected to launch in 2022 and , after a series of flybys in the inner Solar System , arrive in 2030 . In 2012 , the European Space Agency 's selected the JUpiter ICy moon Explorer ( JUICE ) as its firs...
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= = Proposed missions = =
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The Europa Clipper is a mission proposed to NASA to focus on studying Jupiter 's moon Europa . In March 2013 , funds were authorized for " pre @-@ formulation and / or formulation activities for a mission that meets the science goals outlined for the Jupiter Europa mission in the most recent planetary decadal survey "...
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= = = Canceled missions = = =
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Because of the possibility of subsurface liquid oceans on Jupiter 's moons Europa , Ganymede and Callisto , there has been great interest in studying the icy moons in detail . Funding difficulties have delayed progress . The Europa Orbiter was a planned NASA mission to Europa , which was canceled in 2002 . Its main ob...
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The Europa Jupiter System Mission ( EJSM ) was a joint NASA / ESA proposal for exploration of Jupiter and its moons . In February 2009 it was announced that both space agencies had given this mission priority ahead of the Titan Saturn System Mission . The proposal included a launch date of around 2020 and consists of ...
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= = Human exploration = =
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While scientists require further evidence to determine the extent of a rocky core on Jupiter , its Galilean moons provide the potential opportunity for future human exploration .
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Particular targets are Europa , due to its potential for life , and Callisto , due to its relatively low radiation dose . In 2003 , NASA proposed a program called Human Outer Planets Exploration ( HOPE ) that involved sending astronauts to explore the Galilean moons . NASA has projected a possible attempt some time in...
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= = = Potential for colonization = = =
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NASA has speculated on the feasibility of mining the atmospheres of the outer planets , particularly for helium @-@ 3 , an isotope of helium that is rare on Earth and could have a very high value per unit mass as thermonuclear fuel . Factories stationed in orbit could mine the gas and deliver it to visiting craft . Ho...
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Ganymede is the Solar System 's largest moon and the Solar System 's only known moon with a magnetosphere , but this does not shield it from cosmic radiation to a noteworthy degree , because it is overshadowed by Jupiter 's magnetic field . Ganymede receives about 0 @.@ 08 Sv ( 8 rem ) of radiation per day . Callisto ...
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One of the main targets chosen by the HOPE study was Callisto . The possibility of building a surface base on Callisto was proposed , because of the low radiation levels at its distance from Jupiter and its geological stability . Callisto is the only Galilean satellite for which human exploration is feasible . The lev...
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It could be possible to build a surface base that would produce fuel for further exploration of the Solar System . In 1997 , the Artemis Project designed a plan to colonize Europa . According to this plan , explorers would drill down into the Europan ice crust , entering the postulated subsurface ocean , where they wo...
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= Fort Glanville Conservation Park =
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Fort Glanville Conservation Park is a protected area located in the Australian state of South Australia located in Semaphore Park , a seaside suburb of Adelaide consisting of a functional 19th century fort listed on the South Australian Heritage Register and some adjoining land . The fort was built after more than 40 ...
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Construction of the fort began in 1878 . It was officially opened in October 1880 and completed by 1882 . Due to changes in the Port River and shipping movements , Fort Largs surpassed it for strategic importance by 1890 . By the close of the 19th century , the fort was largely unused and had no defence significance ....
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Fort Glanville Historical Association operates the park under license and conducts open days in the park , recreating the past operation of the fort including military drill and the firing of period weapons . The Association , park service , other volunteers and various grants have all helped ensure the fort is presen...
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= = Historic background = =
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In the early years of colonial South Australia , the colonists saw themselves as part of the British Empire and external defence as an Imperial responsibility . Communication lines were long and the empire 's wars remote . Great Britain had undisputed military predominance and she was expected by all to protect her co...
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Tensions between Britain and the Russian Empire in the 1850s , as starkly demonstrated by the Crimean War , along with Australia @-@ wide moves towards self @-@ government caused a reassessment of the colony 's defence posture . The various colonies regarded themselves as possible targets for the Russian Pacific Fleet...
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The volunteer military force was revived in 1859 , with new and modern arms for the infantry , cavalry and artillery . Though there was a few years of enthusiasm and a restructuring in 1866 , by 1870 the force was virtually disbanded . In that year also , British troops were withdrawn from the other Australian colonie...
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During the early 1870s South Australia 's defence was solely dependent on the volunteer military , and a few artillery pieces purchased during earlier war scares . British troops had been withdrawn from the Australian colonies in 1870 , leaving the state dependent on its own military resources . In a report to the gov...
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At this time Semaphore , with its jetty built in 1860 , was the state 's main entry point for passengers and mail . It had a signal station ( built 1872 ) and a time ball tower ( built 1875 ) . Semaphore remained of great maritime significance for the state until the 1880s . When the decision was made to build the for...
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= = Foundation = =
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Scratchley had inspected the proposed South Australian fort sites , and Jervois and Scratchley were both responsible for the final fort design and location . The first fort was erected to guard both the entrance to Port Adelaide and the anchorage at Semaphore . It was built on sandhills near Glanville Hall at Semaphor...
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Construction began in 1878 and though completed by 1882 the fort was operational in 1880 . Changes were made to the design during construction . Some forced by armament changes and others made to ensure additional security , including a rear @-@ defence wall and connecting road from Military Road . By January 1880 two...
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When first conceived , it was known as the Semaphore Battery , later changed to South Battery and then Fort Glanville by the opening ceremony . The name Glanville came from nearby Glanville Hall , residence of John Hart ( 1809 – 1873 ) thrice Premier of South Australia . Hart had named the house after his mother 's ma...
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= = Personnel = =
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For the eighteen months after its opening , the fort was manned by B company of the South Australian Volunteer Artillery but only on weekends . This changed in mid @-@ 1882 when South Australia 's first permanent military force was formed . The fort became the headquarters for the South Australian Permanent Military F...
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There is little in the way of surviving personnel records from the fort 's active time . They may have either been destroyed or transferred to Melbourne after federation . The fort 's record book shows it manned by a section of either the Royal Australian Artillery or B Company of the militia garrison artillery . For ...
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Battery Sergeant Major Charles Moritz , who initially joined the volunteer artillery and was the Permanent Artillery 's first recruit .
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Joseph Maria Gordon ( 1856 – 1929 ) , the fort 's first commander and later military commandant for South Australia . Gordon retired in 1914 as Chief of the General Staff , Australian Military Forces .
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= = Structure = =
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The fort is designed as a defensible battery , rather than a defensive strongpoint . The faces of the fort join to form a half @-@ moon shape or lunette . The guns ' primary role was to defend Port Adelaide and the Semaphore anchorage rather than the fort itself , and the design reflects this . It was intended to be s...
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The entrance road was constructed from Military Road to the fort 's rear gates . Its path is largely followed by the modern Queen Elizabeth II walk , though the former road was slightly to the south . This walk links the conservation park 's visitor centre to the fort gates ; some of the old road can still be seen clo...
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= = = Fortification = = =
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The main defensive structure is a revetted lunette shaped earthwork . It has a 15 @-@ metre ( 49 ft ) thick rampart with 1 @.@ 5 m ( 5 ft ) of concrete and 0 @.@ 6 m ( 2 ft ) of brick forming a retaining wall for the earth fill . The rampart is covered by natural vegetation and , in both the 19th and 21st century oper...
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After numerous proposals the sand hills rear and north of the fort were removed in 1882 , improving the fort 's land defence and allowing the 64 @-@ pounder guns to sweep the Semaphore jetty . This now levelled area was used as a bivouac and exercise area for the colony 's volunteer troops . A stable , office , shed a...
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= = = Internal rooms = = =
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On either side of the terreplein , wide of the 64 @-@ pound guns , are two small rooms known as the expense stores . They were used for ready @-@ to @-@ use ammunition for the adjacent guns , except for armour piercing shells which were stored in the rear @-@ defence wall 's archways . Between the 64 @-@ pounders and ...
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The caponier ( rifle gallery ) extends into the ditch between the rampart and glacis from the fort 's north west corner . It is connected to the fort via a tunnel , running under the rampart from the manning parade . For blast protection and defensibility the tunnel was built with a dogleg . The caponier has rifle fir...
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