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Caliraya
Lake Caliraya is a man-made lake situated in the municipalities of Lumban, Cavinti, and Kalayaan in Laguna province, Philippines. Created in 1939, the lake has developed as a popular spot for water sports and outdoor recreation including fishing. Surrounding the lake are a number of resorts and vacation homes which cater to tourists. History Lake creation Lake Caliraya was created after the construction of Caliraya Dam, an embankment dam started in 1939 by US Army Corps of Engineers Chief in the Philippines, Lieutenant Colonel (later Major General) Hugh J. Casey, with the approval of Philippine Commonwealth President Manuel L. Quezon. The Caliraya River was dammed at its outlet from a large flat plateau area providing a large water reservoir for generating hydroelectric power for Southern Luzon. The dam was over high from which a diversion canal was constructed several miles to the head of a steep slope about 950 feet above Laguna de Bay. Large penstocks were constructed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caliraya Dam
Caliraya Dam is an embankment dam located in the town of Lumban, Laguna, Lumban province of Laguna (province), Laguna, in the Sierra Madre (Philippines), Sierra Madre Mountain Range of the Philippines. The reservoir created by the dam, Lake Caliraya, initially supplied one of the oldest hydroelectric plants in the Philippines, and later became a popular recreational area for numerous water sports and fishing. The dam's construction was started in 1939 under the supervision of the architecture firm of Pedro Siochi, Pedro Siochi and Company and a small hydroelectric plant was operated in 1942.JCMiras (2008-01-09)"First and Oldest (Hydroelectric) Power Plants in the Philippines" JCMiras.net_02. Retrieved on 2011-03-02. Lake Caliraya was later connected with another man-made lake, Lumot Lake, to provide more water through a underground penstock. Later still the dam and lake were used as the upper reservoir for the Kalayaan Pumped-Storage Hydroelectric plant located west of Lake Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laguna (province)
Laguna, officially the Province of Laguna ( fil, Lalawigan ng Laguna), is a Provinces of the Philippines, province in the Philippines located in the Calabarzon Regions of the Philippines, region in Luzon. Its capital is Santa Cruz, Laguna, Santa Cruz while its largest city is the Calamba, Laguna, City of Calamba and the province is situated southeast of Metro Manila, south of the province of Rizal, west of Quezon, north of Batangas and east of Cavite. Laguna hugs the southern shores of Laguna de Bay, the largest lake in the country. As of the 2020 census, the province's total population is 3,382,193. It is the seventh richest province in the country. Laguna is notable as the birthplace of José Rizal, the country's ''de facto'' national hero. It has numerous natural and cultural attractions such as Pagsanjan Falls, the University of the Philippines Los Baños and the University of the Philippines Open University in Los Baños, Laguna, Los Baños, the hot spring resorts of Calamb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laguna Province
Laguna, officially the Province of Laguna ( fil, Lalawigan ng Laguna), is a province in the Philippines located in the Calabarzon region in Luzon. Its capital is Santa Cruz while its largest city is the City of Calamba and the province is situated southeast of Metro Manila, south of the province of Rizal, west of Quezon, north of Batangas and east of Cavite. Laguna hugs the southern shores of Laguna de Bay, the largest lake in the country. As of the 2020 census, the province's total population is 3,382,193. It is the seventh richest province in the country. Laguna is notable as the birthplace of José Rizal, the country's ''de facto'' national hero. It has numerous natural and cultural attractions such as Pagsanjan Falls, the University of the Philippines Los Baños and the University of the Philippines Open University in Los Baños, the hot spring resorts of Calamba on the slopes of Mount Makiling, Pila historic town plaza, Taytay Falls in Majayjay, the wood carvings and ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lumban, Laguna
Lumban, officially the Municipality of Lumban ( tgl, Bayan ng Lumban), is a 3rd class municipality in the province of Laguna, Philippines. It can reach this town Passing Through Rizal Province via Manila East Road or SLEX. According to the 2020 census, it has a population of 32,330 people. Lumban is one of Laguna's oldest towns, located southeast of Manila. It got its name from Aleurites moluccanus, a tree locally named "lumbang". The province's capital town, Santa Cruz, as well as Cavinti and Pagsanjan, were once part of Lumban. The town is the location of the river, wherein the Laguna Copperplate Inscription was found. The copperplate is the oldest known document found in the Philippines, dating to 900AD. Lumban is the home of Lake Caliraya, a man-made lake often visited by nature lovers and sports people. It is known as the "Embroidery Capital of the Philippines". Fine Jusi and Piña cloth are embroidered by hand, and the finished product is worn by males as Barong Tagalo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luzon
Luzon (; ) is the largest and most populous island in the Philippines. Located in the northern portion of the Philippines archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, as well as Quezon City, the country's most populous city. With a population of 64 million , it contains 52.5% of the country's total population and is the fourth most populous island in the world. It is the 15th largest island in the world by land area. ''Luzon'' may also refer to one of the three primary island groups in the country. In this usage, it includes the Luzon mainland, the Batanes and Babuyan groups of islands to the north, Polillo Islands to the east, and the outlying islands of Catanduanes, Marinduque and Mindoro, among others, to the south. The islands of Masbate, Palawan and Romblon are also included, although these three are sometimes grouped with another of the island groups, the Visayas. Etymology The name ''Luz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laguna De Bay
Laguna de Bay (Spanish language, Spanish for "Lagoon/Lake of Bay, Laguna, Bay"; tl, Lawa ng Bay, ), also known as Laguna Lake, is the List of lakes of the Philippines, largest lake in the Philippines. It is located southeast of Metro Manila, between the Provinces of the Philippines, provinces of Laguna (province), Laguna to the south and Rizal to the north. A freshwater lake, it has a surface area of 911–949 km² (352–366 sq mi), with an average depth of about and an elevation of about one meter above sea level. The lake is shaped like a crow's foot, with two peninsulas jutting out from the northern shore and filling the large volcanic Laguna Caldera. In the middle of the lake is the large island of Talim Island, Talim. The lake is one of the primary sources of freshwater fish in the country. Its water drains to Manila Bay via the Pasig River. Environmental issues in the Philippines, Environmental issues such as water quality problems created by population pressure an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penstock
A penstock is a sluice or gate or intake structure that controls water flow, or an enclosed pipe that delivers water to hydro turbines and sewerage systems. The term is inherited from the earlier technology of mill ponds and watermills. Hydroelectric systems and dams Penstocks for hydroelectric installations are normally equipped with a gate system and a surge tank. They can be a combination of many components such as anchor block, drain valve, air bleed valve, and support piers depending on the application. Flow is regulated by turbine operation and is nil when turbines are not in service. Penstocks, particularly where used in polluted water systems, need to be maintained by hot water washing, manual cleaning, antifouling coatings, and desiccation. The term is also used in irrigation dams to refer to the channels leading to and from high-pressure sluice gates. Penstocks are also used in mine tailings dam construction. The penstock is usually situated fairly close to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric Plant
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landsat
The Landsat program is the longest-running enterprise for acquisition of satellite imagery of Earth. It is a joint NASA / USGS program. On 23 July 1972, the Earth Resources Technology Satellite was launched. This was eventually renamed to Landsat 1 in 1975. The most recent, Landsat 9, was launched on 27 September 2021. The instruments on the Landsat satellites have acquired millions of images. The images, archived in the United States and at Landsat receiving stations around the world, are a unique resource for global change research and applications in agriculture, cartography, geology, forestry, regional planning, surveillance and education, and can be viewed through the U.S. Geological Survey (USGS) "EarthExplorer" website. Landsat 7 data has eight spectral bands with spatial resolutions ranging from ; the temporal resolution is 16 days. Landsat images are usually divided into scenes for easy downloading. Each Landsat scene is about 115 miles long and 115 miles wide (or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tailrace
A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a wheel (usually constructed from wood or metal), with a number of blades or buckets arranged on the outside rim forming the driving car. Water wheels were still in commercial use well into the 20th century but they are no longer in common use. Uses included milling flour in gristmills, grinding wood into pulp for papermaking, hammering wrought iron, machining, ore crushing and pounding fibre for use in the manufacture of cloth. Some water wheels are fed by water from a mill pond, which is formed when a flowing stream is dammed. A channel for the water flowing to or from a water wheel is called a mill race. The race bringing water from the mill pond to the water wheel is a headrace; the one carrying water after it has left the wheel is commonly referred to as a tailrace. Waterwheels were used for various purposes from ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric Power
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
