|
Lightning (1952 Film), Lightning
Lightning is a naturally occurring electrostatic discharge during which two electrically charged regions, both in the atmosphere or with one on the ground, temporarily neutralize themselves, causing the instantaneous release of an average of one gigajoule of energy. This discharge may produce a wide range of electromagnetic radiation, from heat created by the rapid movement of electrons, to brilliant flashes of visible light in the form of black-body radiation. Lightning causes thunder, a sound from the shock wave which develops as gases in the vicinity of the discharge experience a sudden increase in pressure. Lightning occurs commonly during thunderstorms as well as other types of energetic weather systems, but volcanic lightning can also occur during volcanic eruptions. Lightning is an atmospheric electrical phenomenon and contributes to the global atmospheric electrical circuit. The three main kinds of lightning are distinguished by where they occur: either inside a si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port And Lighthouse Overnight Storm With Lightning In Port-la-Nouvelle
A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Hamburg, Manchester and Duluth; these access the sea via rivers or canals. Because of their roles as ports of entry for immigrants as well as soldiers in wartime, many port cities have experienced dramatic multi-ethnic and multicultural changes throughout their histories. Ports are extremely important to the global economy; 70% of global merchandise trade by value passes through a port. For this reason, ports are also often densely populated settlements that provide the labor for processing and handling goods and related services for the ports. Today by far the greatest growth in port development is in Asia, the continent with some of the world's largest and busiest ports, such as Singapore and the Chinese ports of Shanghai and Ningbo-Zhou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Electricity
Atmospheric electricity is the study of electrical charges in the Earth's atmosphere (or that of another planet). The movement of charge between the Earth's surface, the atmosphere, and the ionosphere is known as the global atmospheric electrical circuit. Atmospheric electricity is an interdisciplinary topic with a long history, involving concepts from electrostatics, atmospheric physics, meteorology and Earth science. Thunderstorms act as a giant battery in the atmosphere, charging up the electrosphere to about 400,000 volts with respect to the surface. This sets up an electric field throughout the atmosphere, which decreases with increase in altitude. Atmospheric ions created by cosmic rays and natural radioactivity move in the electric field, so a very small current flows through the atmosphere, even away from thunderstorms. Near the surface of the Earth, the magnitude of the field is on average around 100 V/m. Atmospheric electricity involves both thunderstorms, which crea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Understanding Lightning - Figure 1 - Cloud Charging Area
Understanding is a psychological process related to an abstract or physical object, such as a person, situation, or message whereby one is able to use concepts to model that object. Understanding is a relation between the knower and an object of understanding. Understanding implies abilities and dispositions with respect to an object of knowledge that are sufficient to support intelligent behavior. Understanding is often, though not always, related to learning concepts, and sometimes also the theory or theories associated with those concepts. However, a person may have a good ability to predict the behavior of an object, animal or system—and therefore may, in some sense, understand it—without necessarily being familiar with the concepts or theories associated with that object, animal, or system in their culture. They may have developed their own distinct concepts and theories, which may be equivalent, better or worse than the recognized standard concepts and theories of thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Nicholson Jennings
William Nicholson Jennings (1860–1946) was a photographer active in Philadelphia from the 1890s. He conducted experiments with color photography and artificial lightning, helping in the development of photographic flash A flash is a device used in photography that produces a brief burst of light (typically lasting 1/1000 to 1/200 of a second) at a color temperature of about 5500 K to help illuminate a scene. A major purpose of a flash is to illuminate a .... External linksWilliam Jennings in The Franklin Institute's Case Files online exhibitContains biographical information about Jennings, information about his work in the science of lightning and images of Jennings' original photographs 1860 births 1946 deaths American photographers {{US-photographer-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Martin Easterly
Thomas Martin Easterly (October 3, 1809 – March 12, 1882) was a 19th-century American daguerreotypist and photographer. One of the more prominent and well-known daguerreotypists in the Midwest United States during the 1850s, his studio became one of the first permanent art galleries in Missouri. Although his reputation was limited to the Midwest during his lifetime, he is considered to have been one of the foremost experts in the field of daguerreotype photography in the United States during the mid-to-late 19th century. He took the very first known photograph of a lightning bolt in history. Biography Born in Guilford, Vermont, he was the second of five children born to Tunis Easterly and Philomena Richardson. He reportedly came from a poor background, his father being a farmer and part-time shoemaker, and was living away from home at age 11. Around 1830, he was living in St. Lawrence County, New York although little is known of his early years. He began working as itinerant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astraphobia
Astraphobia, also known as astrapophobia, brontophobia, keraunophobia, or tonitrophobia, is an abnormal fear of thunder and lightning or an unwarranted fear of scattered and/or isolated thunderstorms, a type of specific phobia. It is a treatable phobia that both humans and animals can develop. The term astraphobia is composed of the Greek words ἀστραπή (astrape; lightning) and φόβος (phobos; fear). Signs and symptoms A person with astraphobia will often feel anxious during a thunderstorm even when they understand that the threat to them is minimal. Some symptoms are those accompanied with many phobias, such as trembling, crying, sweating, panicked reactions, sudden feeling of using the bathroom, nausea, feeling of dread, insertion of the fingers in the ears, and rapid heartbeat. However, there are some reactions that are unique to astraphobia. For instance, reassurance from other people is usually sought, and symptoms worsen when alone. Many people who have astraphob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Idiomatic
Idiom, also called idiomaticness or idiomaticity, is the syntactical, grammatical, or structural form peculiar to a language. Idiom is the realized structure of a language, as opposed to possible but unrealized structures that could have developed to serve the same semantic functions but did not. The grammar of a language (its morphology, phonology, and syntax) is inherently arbitrary and peculiar to a specific language (or group of related languages). For example, although in English it is idiomatic (accepted as structurally correct) to say "cats are associated with agility", other forms could have developed, such as "cats associate toward agility" or "cats are associated of agility". Unidiomatic constructions sound wrong to fluent speakers, although they are often entirely comprehensible. For example, the title of the classic book ''English as She Is Spoke'' is easy to understand (its idiomatic counterpart is ''English as It Is Spoken''), but it deviates from English idiom in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightning In Religion
The presence of lightning in religion is an historically existing and currently existing cultural aspect where-by the phenomenon of lightning has and is viewed as part of a deity, or a deity in and of itself. Deities One of the most classic portrayals of this is of the Greek god Zeus. An ancient story recounts when Zeus was at war against Cronus and the Titans, he released his brothers, Hades and Poseidon, along with the Cyclopes. In turn, the Cyclopes gave Zeus the thunderbolt as a weapon. The thunderbolt became a popular symbol of Zeus and continues to be today. In Slavic mythology the highest god of the pantheon is Perun, the god of thunder and lightning. One of Polish name for lightning is "piorun", derived from the god's name. Pērkons/Perkūnas is the common Baltic god of thunder, one of the most important deities in the Baltic pantheon. In both Latvian and Lithuanian mythology, he is documented as the god of thunder, rain, mountains, oak trees and the sky. In Norse myt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ball Lightning
Ball lightning is a rare and unexplained phenomenon described as luminescent, spherical objects that vary from pea-sized to several meters in diameter. Though usually associated with thunderstorms, the observed phenomenon is reported to last considerably longer than the split-second flash of a lightning bolt, and is a phenomenon distinct from St. Elmo's fire. Some 19th-century reports describe balls that eventually explode and leave behind an odor of sulfur. Descriptions of ball lightning appear in a variety of accounts over the centuries and have received attention from scientists. An optical spectrum of what appears to have been a ball lightning event was published in January 2014 and included a video at high frame rate. Laboratory experiments have produced effects that are visually similar to reports of ball lightning, but how these relate to the supposed phenomenon remains unclear. Scientists have proposed a number of hypotheses to explain reports of ball lightning over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wildfire
A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of Combustibility and flammability, combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identified as a bushfire(bushfires in Australia, in Australia), desert fire, grass fire, hill fire, peat fire, prairie fire, vegetation fire, or veld fire. Fire ecology, Some natural forest ecosystems depend on wildfire. Wildfires are distinct from beneficial human usage of wildland fire, called controlled burn, controlled burning, although controlled burns can turn into wildfires. Fossil charcoal indicates that wildfires began soon after the appearance of terrestrial plants approximately 419 million years ago during the Silurian period. Earth's carbon-rich vegetation, seasonally dry climates, atmospheric oxygen, and widespread lightning and volcanic ignitions create favorable conditions for fires. The occurre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dry Thunderstorm
A dry thunderstorm is a thunderstorm that produces thunder and lightning, but where most of its precipitation evaporates before reaching the ground. Dry lightning refers to lightning strikes occurring in this situation. Both are so common in the American West that they are sometimes used interchangeably. Dry thunderstorms occur essentially in dry conditions, and their lightning is a major cause of wildfires. Because of that, the National Weather Service, and other agencies around the world, issue forecasts for its likelihood over large areas. Where dry thunderstorms occur Dry thunderstorms generally occur in deserts or places where the lower layers of the atmosphere usually contain little water vapor. Any precipitation that falls from elevated thunderstorms can be entirely evaporated as it falls through the lower dry layers. They are common during the summer months across much of western North America and other arid areas. The shaft of precipitation that can be seen falling fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat Lightning
Heat lightning, also known as silent lightning, summer lightning, or dry lightning (not to be confused with dry thunderstorms, which are also often called dry lightning), is a misnomer used for the faint flashes of lightning on the horizon or other clouds from distant thunderstorms that do not appear to have accompanying sounds of thunder. The actual phenomenon that is sometimes called heat lightning is simply cloud-to-ground lightning that occurs very far away, with thunder that dissipates before it reaches the observer. At night, it is possible to see the flashes of lightning from very far distances, up to , but the sound does not carry that far. In the United States, lightning is especially common in Florida, which is considered the deadliest state for lightning strikes in the country. This is due to high moisture content in the lower atmosphere and high surface temperature, which produces strong sea breezes along the Florida coast. As a result, heat lightning is often seen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
