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El Ojo
El Ojo () is an uninhabited circular rotating floating island located within a slightly larger circular lake in the Paraná Delta in the Buenos Aires Province, Argentina. Description The island is unique among floating islands as its shape is almost perfectly circular. As the island is constantly rotating on its own axis due to the flow of the river beneath it, shearing occurs around its outer edge, eroding the island into its circular shape, similar to ice disks. The island is currently approximately in diameter, but it is expected to get smaller over time with erosion. It is not yet known how or when the island was formed, with the first known Google Earth imagery being dated 2003. The island was named because of its resemblance to an eye when viewed from above: as the island rotates within its surrounding circular lake, the eye appears to move. The island has been compared to a similarly shaped and rotating floating ice disk phenomenon observed in the Presumpscot River n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraná Delta
The Paraná Delta () is the delta of the Paraná River in Argentina and it consists of several islands known as the Islas del Paraná. The Paraná flows north–south and becomes an alluvial basin (a flood plain) between the Argentine provinces of Entre Ríos, Santa Fe and Buenos Aires then emptying into the . It covers about and starts to form between the cities of Santa Fe and Rosario, where the river splits into several arms, creating a network of islands and wetlands. Most of it is in the jurisdiction of Entre Ríos Province, and parts in the north of Buenos Aires Province. The Paraná Delta is conventionally divided into three parts: * the Upper Delta, from the Diamante – Puerto Gaboto line to Villa Constitución; * the Middle Delta, from Villa Constitución to the Ibicuy Islands; * the Lower Delta, from the Ibicuy Islands to the mouth of the river. The total length of the delta is about , and its width varies between . It carries 160 million tonnes of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Eye
The human eye is a sensory organ in the visual system that reacts to light, visible light allowing eyesight. Other functions include maintaining the circadian rhythm, and Balance (ability), keeping balance. The eye can be considered as a living optics, optical device. It is approximately spherical in shape, with its outer layers, such as the outermost, white part of the eye (the sclera) and one of its inner layers (the pigmented choroid) keeping the eye essentially stray light, light tight except on the eye's optic axis. In order, along the optic axis, the optical components consist of a first lens (the cornea, cornea—the clear part of the eye) that accounts for most of the optical power of the eye and accomplishes most of the Focus (optics), focusing of light from the outside world; then an aperture (the pupil) in a Diaphragm (optics), diaphragm (the Iris (anatomy), iris—the coloured part of the eye) that controls the amount of light entering the interior of the eye; then an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floating Islands
A floating island is a mass of floating aquatic plants, mud, and peat ranging in thickness from several centimeters to a few meters. Sometimes referred to as ''tussocks'', ''floatons'', or ''suds'', floating islands are found in many parts of the world. They exist less commonly as an artificial island. Floating islands are generally found on marshlands, lakes, and similar wetland locations, and can be many hectares in size. Natural occurrences Natural floating islands are composed of vegetation growing on a buoyant mat of plant roots or other organic detritus. In aquatic regions of Northwestern Europe, several hundred hectares or a couple thousand acres of floating meadows (German ''Schwingrasen'', Dutch ''trilveen'') have been preserved, which are partly used as agricultural land, partly as nature reserves. They typically occur when growths of cattails, bulrush, sedge, and reeds extend outward from the shoreline of a wetland area. As the water gets deeper the roots no longer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islands Of Argentina
The following are lists of islands that are part of, or claimed by, Argentina. The list is divided into three parts. The first part is those islands that are not disputed. The second part is the Falkland Islands and South Georgia and the South Sandwich Islands, which are claimed by Argentina but are United Kingdom sovereign overseas territories (see Falkland Islands sovereignty dispute; South Georgia and the South Sandwich Islands sovereignty dispute). The third part is the Argentine claim to Antarctica which overlaps both the British and Chilean Antarctic claims. All three countries are signatories to the Antarctic Treaty. Undisputed These are islands currently administered by Argentina Falkland Islands, and South Georgia and the South Sandwich Islands The Falkland Islands and South Georgia and the South Sandwich Islands are United Kingdom sovereign territories claimed by Argentina. Antarctica Argentina's claim to Antarctica overlaps with the claims of Chile an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Nuevo Herald
''El Nuevo Herald'' is a newspaper published daily in Spanish in Southeast Florida, United States. Its headquarters is in Doral. ''El Nuevo Heralds sister paper is the ''Miami Herald'', also produced by the McClatchy Company. About ''el Nuevo Herald'' Founded: First published in 1977 as ''El Miami Herald''; expanded and relaunched in 1987 as ''el Nuevo Herald,'' available as a standalone newspaper in 1998. Key Executives: Nancy A. Meyer, President, Miami Herald Media Company Monica R. Richardson, Executive Editor Distinction: Award-winning, Spanish-language daily newspaper in the nation's third-largest Hispanic market. Circulation Area: Miami-Dade and Broward counties. Market: The South Florida market is the primary market in the state of Florida with nearly 4.3 million residents and ranks as the 15th largest in the United States. It is the third-largest Hispanic market in the nation. Strength: Of daily newspapers, ''el Nuevo Herald'' is the United States' biggest Spanish- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kickstarter
Kickstarter, PBC is an American Benefit corporation, public benefit corporation based in Brooklyn, New York City, that maintains a global crowdfunding platform focused on creativity. The company's stated mission is to "help bring creative projects to life". As of April 2025, Kickstarter has received US$8.71 billion in pledges from 24.1 million backers to fund 277,302 projects, such as films, music, stage shows, comics, journalism, video games, board games, technology, publishing, and food-related projects. People who back Kickstarter projects are offered tangible rewards or experiences in exchange for their pledges. This model traces its roots to subscription model of arts patronage, in which artists would go directly to their audiences to fund their work. History Kickstarter launched on April 28, 2009, by Perry Chen, Yancey Strickler, and Charles Adler. ''The New York Times'' called Kickstarter "the people's National Endowment for the Arts, NEA". ''Time (magazine), Time'' named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with cyanobacteria to produce sugars from carbon dioxide and water, using the green pigment chlorophyll. Exceptions are parasitic plants that have lost the genes for chlorophyll and photosynthesis, and obtain their energy from other plants or fungi. Most plants are multicellular organism, multicellular, except for some green algae. Historically, as in Aristotle's biology, the plant kingdom encompassed all living things that were not animals, and included algae and fungi. Definitions have narrowed since then; current definitions exclude fungi and some of the algae. By the definition used in this article, plants form the clade Viridiplantae (green plants), which consists of the green algae and the embryophytes or land plants (hornworts, liverworts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil
Soil, also commonly referred to as earth, is a mixture of organic matter, minerals, gases, water, and organisms that together support the life of plants and soil organisms. Some scientific definitions distinguish dirt from ''soil'' by restricting the former term specifically to displaced soil. Soil consists of a solid collection of minerals and organic matter (the soil matrix), as well as a porous phase that holds gases (the soil atmosphere) and water (the soil solution). Accordingly, soil is a three- state system of solids, liquids, and gases. Soil is a product of several factors: the influence of climate, relief (elevation, orientation, and slope of terrain), organisms, and the soil's parent materials (original minerals) interacting over time. It continually undergoes development by way of numerous physical, chemical and biological processes, which include weathering with associated erosion. Given its complexity and strong internal connectedness, soil ecologists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicle
An unmanned aerial vehicle (UAV) or unmanned aircraft system (UAS), commonly known as a drone, is an aircraft with no human pilot, crew, or passengers onboard, but rather is controlled remotely or is autonomous.De Gruyter Handbook of Drone Warfare; 2024. e-ISBN (PDF) 978-3-11-074203-9.H. Pan; M. Zahmatkesh; F. Rekabi-Bana; F. Arvin; J. HuT-STAR: Time-Optimal Swarm Trajectory Planning for Quadrotor Unmanned Aerial Vehicles IEEE Transactions on Intelligent Transportation Systems, 2025. UAVs were originally developed through the twentieth century for military missions too "dull, dirty or dangerous" for humans, and by the twenty-first, they had become essential assets to most militaries. As control technologies improved and costs fell, their use expanded to many non-military applications. These include aerial photography, area coverage,F. Rekabi-Bana; Hu, J.; T. Krajník; Arvin, F.,Unified Robust Path Planning and Optimal Trajectory Generation for Efficient 3D Area Coverage of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scuba Diving
Scuba diving is a Diving mode, mode of underwater diving whereby divers use Scuba set, breathing equipment that is completely independent of a surface breathing gas supply, and therefore has a limited but variable endurance. The word ''scuba'' is an Acronym#Normal case and acronyms, acronym for "Self-Contained Underwater Breathing Apparatus" and was coined by Christian J. Lambertsen in a patent submitted in 1952. Scuba divers carry their own source of breathing gas, affording them greater independence and movement than surface-supplied divers, and more time underwater than freedivers. Although the use of compressed air is common, other gas blends are also used. Open-circuit scuba systems discharge the breathing gas into the environment as it is exhaled and consist of one or more diving cylinders containing breathing gas at high pressure which is supplied to the diver at ambient pressure through a diving regulator. They may include additional cylinders for range extension, de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exploration
Exploration is the process of exploring, an activity which has some Expectation (epistemic), expectation of Discovery (observation), discovery. Organised exploration is largely a human activity, but exploratory activity is common to most organisms capable of directed Animal locomotion, locomotion and the ability to learn, and has been described in, amongst others, social insects foraging behaviour, where feedback from returning individuals affects the activity of other members of the group. Types Geographical Geographical exploration, sometimes considered the default meaning for the more general term exploration, is the practice of discovering lands and regions of the planet Earth remote or relatively inaccessible from the origin of the explorer. The surface of the Earth not covered by water has been relatively comprehensively explored, as access is generally relatively straightforward, but underwater and subterranean areas are far less known, and even at the surface, much is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crowdfunding
Crowdfunding is the practice of funding a project or venture by raising money from a large number of people, typically via the internet. Crowdfunding is a form of crowdsourcing and Alternative Finance, alternative finance, to fund projects "without standard financial intermediaries". Mollick, E. (2014). ''The dynamics of crowdfunding: An exploratory study.'' Journal of Business Venturing. Vol. 29, pp. 1–16. In 2015, over was raised worldwide by crowdfunding. Although similar concepts can also be executed through mail-order subscriptions, benefit events, and other methods, the term crowdfunding refers to internet-mediated registries. This modern crowdfunding model is generally based on three types of actors – the project initiator who proposes the idea or project to be funded, individuals or groups who support the idea, and a moderating organization (the "platform") that brings the parties together to launch the idea. The term crowdfunding was coined in 2006 by entrepreneur an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
