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Cleveland Point Light
Cleveland Point Light, also known as Point Cleveland Light, is a lighthouse located on the north-eastern tip of Cleveland Point, at Cleveland, Queensland, Cleveland, Redland City, Queensland, Australia. It overlooks Moreton Bay to the east and Raby Bay to the west. The old lighthouse was established in 1864-1865 as a wooden hexagonal tower. It is one of only two surviving lighthouses of this form, the other being Old Burnett Heads Light. A newer light, constructed of a concrete post, replaced it in 1976, and the old lighthouse was relocated a short distance away, where it stands today. The newer light was removed in 2009. An early 1847 private beacon was replaced by a temporary government light in 1864, and then the permanent tower in 1865. The lens was upgraded twice, in 1874 and 1879. In 1934 the lighthouse was converted to electricity, and remained so until 1976 when it was deactivated and replaced by a concrete pile light constructed just away. The original tower was moved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleveland, Queensland
Cleveland is a coastal and central locality in the City of Redland, Queensland, Australia. In the , Cleveland had a population of 14,801 people. Its location makes it a transport hub for islands in Moreton Bay. Geography Cleveland is located on the western shores of Moreton Bay approximately east-south-east of Brisbane, the capital of the Australian state of Queensland. It comprises commercial, residential and industrial areas and is the location of Redland City's Council Chambers, offices and various cultural facilities. Raby Bay was an area of mangroves and mudflats which has been developed as canal estates and a marina development. Toondah Harbour is the location of the Stradbroke Island Ferry Terminal used by water taxis and vehicular ferries to provide access to North Stradbroke Island. This area of Moreton Bay is naturally shallow but the Fison Channel has been dredged to provide access for vehicular ferries which connect Cleveland to Dunwich.Joshua Peter Bell, "M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logan River
The Logan River ( Yugambeh: ''Dugulumba'') is a perennial river located in the Scenic Rim, Logan and Gold Coast local government areas of the South East region of Queensland, Australia. The -long river is one of the dominant waterways in South East Queensland that drains the southern ranges of the Scenic Rim and empties into Moreton Bay after navigating the City of Logan, a major suburban centre located south of Brisbane. The catchment is dominated by urban and agricultural land use. Near the river mouth are mangrove forests and a number of aquaculture farms. Course and features The river rises below Mount Ernest on the southern slopes of the Scenic Rim, part of the Great Dividing Range and forms in the Mount Barney National Park, near the QueenslandNew South Wales border, below Mount Lindesay. The river flows generally north by northeast, joined by eleven minor tributaries, before heading east and eventually emptying into Moreton Bay. Its principal tributaries are the Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser Beam
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is ''coherent''. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances ( collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses of lig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filament Lamp
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxidation. Current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket provides mechanical support and electrical connections. Incandescent bulbs are manufactured in a wide range of sizes, light output, and voltage ratings, from 1.5 volts to about 300 volts. They require no external regulating equipment, have low manufacturing costs, and work equally well on either alternating current or direct current. As a result, the incandescent bulb became widely used in household and commercial lighting, for portable lighting such as table lamps, car headlamps, and flashlights, and for decorative and advertising lighting. Incandescent bulbs are much less efficient than other types of electric lighting, converting less ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shoal
In oceanography, geomorphology, and geoscience, a shoal is a natural submerged ridge, bank, or bar that consists of, or is covered by, sand or other unconsolidated material and rises from the bed of a body of water to near the surface. It often refers to those submerged ridges, banks, or bars that rise near enough to the surface of a body of water as to constitute a danger to navigation. Shoals are also known as sandbanks, sandbars, or gravelbars. Two or more shoals that are either separated by shared troughs or interconnected by past or present sedimentary and hydrographic processes are referred to as a shoal complex.Neuendorf, K.K.E., J.P. Mehl Jr., and J.A. Jackson, eds. (2005) ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. The term ''shoal'' is also used in a number of ways that can be either similar or quite different from how it is used in geologic, geomorphic, and oceanographic literature. Sometimes, this term refers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moreton Island Lighthouses
Moreton Island is a large sand island on the eastern side of Moreton Bay, on the coast of South East Queensland, Australia. Due to the island's importance in navigating the northern passage into Moreton Bay and Brisbane, at least five lighthouses were constructed on the island, starting with Cape Moreton Light in , the first lighthouse in Queensland, and followed by at least four more lighthouses established from the 1860s, at Comboyuro Point, North Point, Cowan Cowan Point and Yellow Patch. Comboyuro Point Light, Cowan Cowan Point Light and Yellow Patch Light all had to be moved from their original location due to coastal erosion. Of the five lighthouses, only Cape Moreton Light survived and is still active today. Background In 1825, Brisbane was established as a penal settlement. In spite of the hazards, the preferred access to Moreton Bay and Brisbane was through the southern entrance, between Moreton Island and North Stradbroke Island, mainly due to shorter shipping route a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Moreton Light
Cape Moreton Light, also listed as North Point Range Rear Light, is a heritage-listed active lighthouse located on Cape Moreton, a rocky headland located at the north eastern tip of Moreton Island, a large sand island on the eastern side of Moreton Bay, on the coast of South East Queensland, Australia.''List of Lights'' and . has It marks the northern entrance to Moreton Bay and Brisbane and also serves as the rear light for the North Point Range. With its two distinctive red bands, it also serves as a daymark. It is the oldest lighthouse in Queensland, and the only one to be built by the New South Wales Government before the separation of Queensland, which took place in 1859. It is also the only lighthouse in Queensland to be built of stone. The lighthouse was established following an increase in traffic through the northern entrance to Moreton Bay in the 1840s. It was designed by Edmund Blacket in 1854 and established in 1857. Over the years the light source went throug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moreton Island
Moreton Island (Mulgumpin) is an island on the eastern side of Moreton Bay on the coast of South East Queensland, Australia. The Coral Sea lies on the east coast of the island. Moreton Island lies northeast of the Queensland capital, Brisbane. 95% of the island is contained within a national park and a popular destination for day trippers, four wheel driving, camping, recreational angling and whale watching and a 75-minute ferry ride from Brisbane. It is the third largest sand island in the world. Together with Fraser Island, Moreton Island forms the largest sand structure in the world. It was the traditional country of the Ngugi before the onset of colonization. The island is within the City of Brisbane and is gazetted into four localities, the small townships of Bulwer (on the north-west coast), Cowan Cowan (on the west coast) and Kooringal (on the south-west coast) with the bulk of the island being the locality of Moreton Island. The private Tangalooma Island Reso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresnel Lens
A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens was first proposed by Count Buffon and independently reinvented by Fresnel. The '' catadioptric'' form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances. Description The Fresnel lens redu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chance Brothers
Chance Brothers and Company was a glassworks originally based in Spon Lane, Smethwick, West Midlands (formerly in Staffordshire), in England. It was a leading glass manufacturer and a pioneer of British glassmaking technology. The Chance family originated in Bromsgrove in Worcestershire as farmers and craftsmen, before setting up business in Smethwick in 1822. Situated between Birmingham and the Black Country in the agglomeration of the Midlands industrial heartland, they took advantage of the skilled workers, canals and many advances that were taking place in the industrial West Midlands at the time. Throughout its almost two centuries of history many changes affected the company which, now privatised, continues to function as Chance Glass Limited, a specialised industrial glass manufacturer in Malvern, Worcestershire at one of its small subsidiary factories. The social and economic impact of the company on the region is the subject of a project sponsored by the Heritage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerosene
Kerosene, paraffin, or lamp oil is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as households. Its name derives from el, κηρός (''keros'') meaning "wax", and was registered as a trademark by Canadian geologist and inventor Abraham Gesner in 1854 before evolving into a generic trademark. It is sometimes spelled kerosine in scientific and industrial usage. The term kerosene is common in much of Argentina, Australia, Canada, India, New Zealand, Nigeria, and the United States, while the term paraffin (or a closely related variant) is used in Chile, eastern Africa, South Africa, Norway, and in the United Kingdom. The term lamp oil, or the equivalent in the local languages, is common in the majority of Asia and the Southeastern United States. Liquid paraffin (called mineral oil in the US) is a more viscous and highly refined product which is used as a laxative. Paraffin wax is a waxy solid extracted from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Of Queensland
The Queensland Government is the democratic administrative authority of the Australian state of Queensland. The Government of Queensland, a parliamentary constitutional monarchy was formed in 1859 as prescribed in its Constitution, as amended from time to time. Since the Federation of Australia in 1901, Queensland has been a State of Australia, with the Constitution of Australia regulating the relationships between all state and territory governments and the Australian Government. Under the Australian Constitution, all states and territories (including Queensland) ceded powers relating to certain matters to the federal government. The government is influenced by the Westminster system and Australia's federal system of government. The Governor of Queensland, as the representative of Charles III, King of Australia, holds nominal executive power, although in practice only performs ceremonial duties. In practice executive power lies with the Premier and Cabinet. The Cabinet of Qu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
