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Stick Bomb
A stick bomb is a (mechanical) spring-loaded device constructed out of flat sticks woven together under a bending moment. Other names for stick bombs include Chinese stick puzzles, Cobra wave, and frame bombs. Stick bombs are created for fun and as art, not for any practical use. History Simple stick bombs made out of four, five, or six sticks have been known to schoolchildren for ages. They were often known as "Chinese stick puzzles", which indicates a possible origin for the devices. Tarnai (1989) describes several designs, including those with indefinite size which he credits to Ruina. Ruina claims to have invented the "infinite popsicle-stick bomb" in 1971. In the early 1980s, Tim Fort, known professionally as the Kinetic King, independently invented the multi-celled stick bomb. He also invented all of the stick-bomb weaves currently used including the ortho weave, the diamond weave, and the slant weave; using tongue depressors instead of Popsicle sticks is also credited ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical System
A machine is a physical system using Power (physics), power to apply Force, forces and control Motion, movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromolecules, such as molecular machines. Machines can be driven by Animal power, animals and Human power, people, by natural forces such as Wind power, wind and Water power, water, and by Chemical energy, chemical, Thermal energy, thermal, or electricity, electrical power, and include a system of mechanism (engineering), mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems. Renaissance natural philosophers identified six simple machines which were the elementary devices that put a load into motion, and calculated the ratio of output force to input fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bending Moment
In solid mechanics, a bending moment is the reaction induced in a structural element when an external force or moment is applied to the element, causing the element to bend. The most common or simplest structural element subjected to bending moments is the beam. The diagram shows a beam which is simply supported (free to rotate and therefore lacking bending moments) at both ends; the ends can only react to the shear loads. Other beams can have both ends fixed (known as encastre beam); therefore each end support has both bending moments and shear reaction loads. Beams can also have one end fixed and one end simply supported. The simplest type of beam is the cantilever, which is fixed at one end and is free at the other end (neither simple or fixed). In reality, beam supports are usually neither absolutely fixed nor absolutely rotating freely. The internal reaction loads in a cross-section of the structural element can be resolved into a resultant force and a resultant couple. F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culture Of China
Chinese culture () is one of the world's oldest cultures, originating thousands of years ago. The culture prevails across a large geographical region in East Asia and is extremely diverse and varying, with customs and traditions varying greatly between provinces, cities, and even towns as well. The terms 'China' and the geographical landmass of 'China' have shifted across the centuries, with the last name being the Great Qing before the name 'China' became commonplace in modernity. Chinese civilization is historically considered a dominant culture of East Asia. With China being one of the earliest ancient civilizations, Chinese culture exerts profound influence on the philosophy, virtue, etiquette, and traditions of Asia. Chinese characters, ceramics, architecture, music, dance, literature, martial arts, cuisine, visual arts, philosophy, business etiquette, religion, politics, and history have had global influence, while its traditions and festivals are celebrated, instill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stick Puzzle
Stick puzzles are a type of combination puzzle that uses multiple sticks or 'polysticks' (which can be one-dimensional objects) to assemble two- or three-dimensional configurations. Polysticks are configurations of joined or unjoined thin (ideally one-dimensional) 'sticks'. The sticks may be; line segments on paper, matchsticks, pieces of straw, wire or similar. A special class of stick puzzles are 'matchstick puzzles', where all parts used are sticks (usually matchsticks) rather than polysticks. Some trick puzzles can only be solved when one assumes that the sticks actually have measurements in more than one dimension. Three-dimensional arrangements like tetrastix can also be made from matchsticks. Examples of stick puzzles * Matchstick puzzles * Burr puzzle * Hexastix Hexastix is a symmetric arrangement of non-intersecting prisms, that when extended infinitely, fill exactly 3/4 of space. The prisms in a hexastix arrangement are all parallel to 4 directions on the body-centere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Archive
The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, movies/videos, moving images, and millions of books. In addition to its archiving function, the Archive is an activist organization, advocating a free and open Internet. , the Internet Archive holds over 35 million books and texts, 8.5 million movies, videos and TV shows, 894 thousand software programs, 14 million audio files, 4.4 million images, 2.4 million TV clips, 241 thousand concerts, and over 734 billion web pages in the Wayback Machine. The Internet Archive allows the public to upload and download digital material to its data cluster, but the bulk of its data is collected automatically by its web crawlers, which work to preserve as much of the public web as possible. Its web archiving, web archive, the Wayback Machine, contains hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
America's Got Talent
''America's Got Talent'' (often abbreviated as ''AGT'') is a televised American talent show competition, and is part of the global ''Got Talent'' franchise created by Simon Cowell. The program is produced by Fremantle (as well as distributed by) and Syco Entertainment, and broadcasts on the NBC television network. It premiered on June 21, 2006 after plans for a British edition in 2005 were suspended, following a dispute within the British broadcaster ITV. Production would later resume in 2007, following the success of the first season. Each season is mainly run during the network's summer schedule, and has featured various hosts over the course of the program's history. The current host is Terry Crews. The program attracts a variety of participants from across the United States and abroad, who possess some form of talents. Acts range from singing, dancing, comedy, magic, stunts, variety and other genres. Each participant or act who auditions, attempts to secure a place in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or woodchips or fiber. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More recently it emerged as a feedstock for the productio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plastic
Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be moulded, extruded or pressed into solid objects of various shapes. This adaptability, plus a wide range of other properties, such as being lightweight, durable, flexible, and inexpensive to produce, has led to its widespread use. Plastics typically are made through human industrial systems. Most modern plastics are derived from fossil fuel-based chemicals like natural gas or petroleum; however, recent industrial methods use variants made from renewable materials, such as corn or cotton derivatives. 9.2 billion tonnes of plastic are estimated to have been made between 1950 and 2017. More than half this plastic has been produced since 2004. In 2020, 400 million tonnes of plastic were produced. If global trends on plastic demand continue, it is estimated that by 2050 annual global plastic production will reach over 1, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Pop
An ice pop is a liquid-based frozen snack on a stick. Unlike ice cream or sorbet, which are whipped while freezing to prevent ice crystal formation, an ice pop is "quiescently" frozen—frozen while at rest—and becomes a solid block of ice. The stick is used as a handle to hold it. Without a stick, the frozen product would be a freezie. An ice pop is also referred to as a popsicle in Canada and the United States, flash in Algeria, paleta in Mexico, the Southwestern United States and parts of Latin America, ice lolly in the United Kingdom (the term ''ice pop'' refers to a freezie in the United Kingdom), ice drop in the Philippines, ice gola in India, ice candy in India and Japan, and kisko in the Caribbean. The term icy pole is often used in Australia, but is a brand name for a specific type, so ice block is also used. History As far back as 1872, two men, doing business as Ross and Robbins, sold a frozen-fruit confection on a stick, which they called the Hokey-Pokey. Franc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tongue Depressors
A tongue depressor (sometimes called spatula) is a tool used in medical practice to depress the tongue to allow for examination of the mouth and throat. The most common modern tongue depressors are flat, thin, wooden blades, smoothed and rounded at both ends, but, historically, tongue depressors have been made of a variety of materials. Since they are inexpensive and difficult to clean because of their porous texture, wooden tongue depressors are labeled for disposal after a single usage. Hobbyists, artists, and teachers use tongue depressors (sometimes called "craft sticks" or " popsicle sticks") in sculptural projects. Earlier versions of depressors were made from balsa, pine, or redwood woods. Tongue depressors made from wood and metal exist from the American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
