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Spiral (railway) Spiral viaduct of the Bernina Express near Brusio, Switzerland. A spiral (sometimes called a spiral loop or just loop) is a technique employed by railways to ascend steep hills. A railway spiral rises on a steady curve until it has completed a loop, passing over itself as it gains height, allowing the railway to gain vertical ...
Parkour. Parkour ( French: [paʁkuʁ]) is an athletic training discipline or sport in which practitioners (called traceurs) attempt to get from one point to another in the fastest and most efficient way possible, without assisting equipment and often while performing feats of acrobatics. [5]
Transport - Rail. Location of Bethungra Spiral in New South Wales. The Bethungra Spiral is a heritage-listed rail spiral near Bethungra, between Junee and Cootamundra, carrying the northbound track of the Melbourne → Sydney railway line. [1] [2] It is a listed heritage item, having been added to the New South Wales State Heritage Register on ...
Build The Earth was created by YouTuber PippenFTS in March 2020 as a collaborative effort to recreate Earth in the video game Minecraft. [1] During the COVID-19 lockdowns, the server aimed to provide players with the opportunity to virtually experience and construct the world. In a YouTube video, PippenFTS called for prospective participants to ...
Golden spiral. Golden spirals are self-similar. The shape is infinitely repeated when magnified. In geometry, a golden spiral is a logarithmic spiral whose growth factor is φ, the golden ratio. [1] That is, a golden spiral gets wider (or further from its origin) by a factor of φ for every quarter turn it makes.
An Euler spiral is a curve whose curvature changes linearly with its curve length (the curvature of a circular curve is equal to the reciprocal of the radius). This curve is also referred to as a clothoid or Cornu spiral. [1] [2] The behavior of Fresnel integrals can be illustrated by an Euler spiral, a connection first made by Alfred Marie ...
The Archimedean spiral (also known as the arithmetic spiral) is a spiral named after the 3rd-century BC Greek mathematician Archimedes. It is the locus corresponding to the locations over time of a point moving away from a fixed point with a constant speed along a line that rotates with constant angular velocity.
The Large Magellanic Cloud (LMC) is a dwarf galaxy and satellite galaxy of the Milky Way. At a distance of around 50 kiloparsecs (163,000 light-years), the LMC is the second- or third-closest galaxy to the Milky Way, after the Sagittarius Dwarf Spheroidal (c. 16 kiloparsecs (52,000 light-years) away) and the possible dwarf irregular galaxy called the Canis Major Overdensity.