|
Building Toys
A construction set is a standardized piece assortment allowing for the construction of various different models. Construction sets are most often marketed as toys. Popular construction toy brands include Lincoln Logs and ''LEGO''. Toys Psychological benefits Construction toy play is beneficial for building social skills and building trust in others because it acts as a collaborative task where individuals have to cooperate to finish the taskbuilding an object out of Lego, for example. The effect was found in high school students. For children specifically, children who complete models using toy building blocks have much better spatial ability than children who do not complete such models. Spatial ability also predicts completion of models. Construction toy play is also beneficial for autistic children when both individual and group play with building blocks is incorporated. Autistic children who played with building blocks were motivated to initiate social contact with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lego Evolution
Lego (, ; ; stylised as LEGO) is a line of plastic Construction set, construction toys manufactured by the Lego Group, a privately held company based in Billund, Denmark, Billund, Denmark. Lego consists of variously coloured Interchangeable parts, interlocking plastic bricks made of acrylonitrile butadiene styrene (ABS) that accompany an array of gears, figurines called Lego minifigure, minifigures, and various other parts. Its pieces can be assembled and connected in many ways to construct objects, including vehicles, buildings, and working robots. Assembled Lego models can be taken apart, and their pieces can be reused to create new constructions. The Lego Group began manufacturing the interlocking toy bricks in 1949. Moulding is done in Denmark, Hungary, Mexico, and China. Brick decorations and packaging are done at plants in the former three countries and in the Czech Republic. Annual production of the bricks averages approximately 36 billion, or about 1140 elements ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spatial Visualization Ability
Spatial visualization ability or visual-spatial ability is the ability to mentally manipulate 2-dimensional and 3-dimensional figures. It is typically measured with simple cognitive tests and is predictive of user performance with some kinds of user interfaces. Measurement The cognitive tests used to measure spatial visualization ability including mental rotation tasks like the Mental Rotations Test or mental cutting tasks like the Mental Cutting Test; and cognitive tests like the VZ-1 (Form Board), VZ-2 (Paper Folding), and VZ-3 (Surface Development) tests from the Kit of Factor-Reference cognitive tests produced by Educational Testing Service. Though the descriptions of spatial visualization and mental rotation sound similar, mental rotation is a particular task that can be accomplished using spatial visualization. The Minnesota Paper Form Board Test involves giving participants a shape and a set of smaller shapes which they are then instructed to determine which co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linkage (mechanical)
A mechanical linkage is an assembly of systems connected so as to manage forces and Motion, movement. The movement of a body, or link, is studied using geometry so the link is considered to be Rigid body, rigid. The connections between links are modeled as providing ideal movement, pure rotation or Sliding (motion), sliding for example, and are called joints. A linkage modeled as a network of rigid links and ideal joints is called a kinematic chain. Linkages may be constructed from open chains, closed chains, or a combination of open and closed chains. Each link in a chain is connected by a joint to one or more other links. Thus, a kinematic chain can be modeled as a graph in which the links are paths and the joints are vertices, which is called a linkage graph. The movement of an ideal joint is generally associated with a subgroup of the group of Euclidean geometry, Euclidean displacements. The number of parameters in the subgroup is called the degree of freedom (mecha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zometool
Zometool is a construction set toy that had been created by a collaboration of Steve Baer (the creator of Zome (architecture), Zome architecture), artist Clark Richert, Paul Hildebrandt (the present CEO of Zometool), and co-inventor Marc Pelletier. It is manufactured by Zometool, Inc. According to the company, Zometool was primarily designed for kids. Zometool has also been used in other fields including mathematics and physics. For example, aperiodic tilings such as Penrose tilings can be modeled using Zometool. The learning tool was designed by inventor-designer Steve Baer, his wife Holly and others. The Zometool plastic construction set toy is produced by a privately owned company of the same name, based outside of Longmont, Colorado, and which evolved out of Baer's company ZomeWorks. Its elements consist of small connector nodes and struts of various colors. The overall shape of a connector node is that of a non-uniform small rhombicosidodecahedron with each face replaced by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icosahedral Symmetry
In mathematics, and especially in geometry, an object has icosahedral symmetry if it has the same symmetries as a regular icosahedron. Examples of other polyhedra with icosahedral symmetry include the regular dodecahedron (the dual polyhedron, dual of the icosahedron) and the rhombic triacontahedron. Every polyhedron with icosahedral symmetry has 60 Rotational symmetry, rotational (or orientation-preserving) symmetries and 60 orientation-reversing symmetries (that combine a rotation and a Reflection symmetry, reflection), for a total symmetry order of 120. The full symmetry group is the Coxeter group of type . It may be represented by Coxeter notation and Coxeter diagram . The set of rotational symmetries forms a subgroup that is isomorphic to the alternating group on 5 letters. As point group Apart from the two infinite series of prismatic and antiprismatic symmetry, rotational icosahedral symmetry or chiral icosahedral symmetry of chiral objects and full icosahedra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleversticks
Cleversticks is a plastic construction toy manufactured in the UK. The "Cleversticks Construction System" The original design manufactured in polypropylene used sticks with pairs of jaws on each end and rings, the jaws connect onto the body of the sticks or rings, The jaws also connected the sticks end to end. The resulting toy was best suited to young children; with these few components, a wide range of models could be assembled. Squares, triangles, rectangles and hexagon shapes were later added to allow the toy to be used for sorting into sets; the toy could now be used in primary education. Technical shapes were added to increase the complexity of the toy and appeal to older children. The most recent additions utilise the new patented design manufactured in Acrylonitrile butadiene styrene (ABS) including wheels with tyres manufactured in Santoprene Thermoplastic vulcanizates (TPVs) are a type of thermoplastic elastomers (TPE) that undergo vulcanization processes during man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Playskool Pipeworks
Playskool is an American brand of educational toys and games for preschoolers. The former Playskool manufacturing company was a subsidiary of the Milton Bradley Company and was headquartered in Chicago, Illinois. Playskool's last remaining plant in the aforementioned city was shut down in 1984, and ''Playskool'' became a brand of Hasbro, which had acquired Milton Bradley that same year.Playskool MFG Co. at Chicago Museum Amidst a major corporate restructuring at Hasbro, to focus on licensing, digital games and core toy brands in 2023, Hasbro has entered into licensing agreements with other toy companies, such as and Just Play Products, to outsource the brand's toy production. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tinkertoy
The Tinkertoy Construction Set—commonly known as Tinkertoy, Tinker Toy, or plural forms thereof—is a construction set for children. It was designed in 1914 and was originally manufactured in Evanston, Illinois, U.S. The brand is now owned by Hasbro. History The construction set was designed in 1914—six years after Frank Hornby's Meccano sets—by Charles H. Pajeau, who formed the Toy Tinker Company in Evanston, Illinois, to manufacture them. Pajeau, a stonemason, designed the set after seeing children play with sticks and empty spools of thread. Pajeau partnered with Robert Pettit and Gordon Tinker to market a toy that would allow and inspire children to use their imaginations. After an initially slow start, over a million were sold. The cornerstone of the set is a wooden spool roughly in diameter, with holes drilled every 45 degrees around the perimeter and one through the center. Unlike the center, the perimeter holes do not go all the way through. With th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K'Nex
K'Nex is a construction toy system created by Joel Glickman. It was first introduced in America in 1992. K'Nex is designed and produced by K'Nex Industries Inc. of Hatfield, Pennsylvania. K'Nex was purchased by Florida-based company Basic Fun! in 2018. The toy's building system consists of interlocking plastic rods, connectors, glocks, gears, wheels, and other components, which can be assembled to form a wide variety of models, machines, and architectural structures. While K'Nex is designed for children ages 5–12, a bigger version, Kid K'Nex, is aimed towards children 5 and younger. History The first K'Nex Box was launched in the U.S. market in 1993. Original models with moving parts had a handcrank to make things move, but soon, gears and motors allowed models to move on their own. The company's products were sold at Toys "R" Us, starting in early October 1992. By 2011, K'Nex was distributed in over 25 countries, including the United States. In 2018, all of K'Nex's asse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dihedral Symmetry
In mathematics, a dihedral group is the group of symmetries of a regular polygon, which includes rotations and reflections. Dihedral groups are among the simplest examples of finite groups, and they play an important role in group theory, geometry, and chemistry. The notation for the dihedral group differs in geometry and abstract algebra. In geometry, or refers to the symmetries of the -gon, a group of order . In abstract algebra, refers to this same dihedral group. This article uses the geometric convention, . Definition The word "dihedral" comes from "di-" and "-hedron". The latter comes from the Greek word hédra, which means "face of a geometrical solid". Overall it thus refers to the two faces of a polygon. Elements A regular polygon with n sides has 2n different symmetries: n rotational symmetries and n reflection symmetries. Usually, we take n \ge 3 here. The associated rotations and reflections make up the dihedral group \mathrm_n. If n is odd, each axis o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Frame
In architecture and structural engineering, a space frame or space structure (Three-dimensional space, 3D truss) is a rigid, lightweight, truss-like structure constructed from interlocking struts in a geometry, geometric pattern. Space frames can be used to span large areas with few interior supports. Like the truss, a space frame is strong because of the inherent rigidity of the triangle; flexing Structural load, loads (bending moment (physics), moments) are transmitted as tension (mechanics), tension and compression (physical), compression loads along the length of each strut. Chief applications include buildings and vehicles. History Alexander Graham Bell from 1898 to 1908 developed space frames based on tetrahedral geometry. Bell's interest was primarily in using them to make rigid frames for nautical and aeronautical engineering, with the tetrahedral kite, tetrahedral truss being one of his inventions. Mero-Schmidlin, Max Mengeringhausen developed the space grid system cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Science & Technology
''Environmental Science & Technology'' is a biweekly peer-reviewed scientific journal published since 1967 by the American Chemical Society. It covers research in environmental science and environmental technology, including environmental policy. ''Environmental Science & Technology'' has a sister journal, '' Environmental Science & Technology Letters'', which publishes short communications. The editor-in-chief of ''Environmental Science & Technology'' is Prof. Julie Zimmerman (Yale University). Previous editors have been: David Sedlak (University of California, Berkeley, 2014 - 2020), James J. Morgan (California Institute of Technology; founding editor, 1967–1975), Russell F. Christman (University of North Carolina, 1975–1987), William H. Glaze (University of North Carolina, 1987–2003) and Jerald L. Schnoor (University of Iowa, 2002–2014). Abstracting and indexing According to the ''Journal Citation Reports'', the journal has a 2022 impact factor of 11.4. The journal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
