Solid geometry
In mathematics, solid geometry is the traditional name for the geometry of three-dimensional Euclidean space.
Stereometry deals with the measurements of volumes of various solid figures or Polyhedrons (three-dimensional figures) including pyramids, cylinders, cones, truncated cones, spheres, and prisms.
The Pythagoreans dealt with the regular solids, but the pyramid, prism, cone and cylinder were not studied until the Platonists. Eudoxus established their measurement, proving the pyramid and cone to have one-third the volume of a prism and cylinder on the same base and of the same height, and was probably the discoverer of a proof that the volume of a sphere is proportional to the cube of its radius.
Basic topics of solid geometry
Basic topics are:
SOLID (object-oriented design)
In computer programming, SOLID (Single responsibility, Open-closed, Liskov substitution, Interface segregation and Dependency inversion) is a mnemonic acronym introduced by Michael Feathers for the "first five principles" named by Robert C. Martin in the early 2000s that stands for five basic principles of object-oriented programming and design. The principles, when applied together, intend to make it more likely that a programmer will create a system that is easy to maintain and extend over time. The principles of SOLID are guidelines that can be applied while working on software to remove code smells by causing the programmer to refactor the software's source code until it is both legible and extensible. It is part of an overall strategy of agile and Adaptive Software Development.
Overview
See also
Basic concepts and related topics
Glass (film)
Glass (Dutch: Glas) is a 1958 Dutch short documentary film by director and producer Bert Haanstra. The film won the Academy Award for Documentary Short Subject in 1959. The film is about the glass industry in the Netherlands. It contrasts the handmade crystal from the Royal Leerdam Glass Factory with automated bottle making machines. The accompanying music ranges from jazz to techno. Short segments of artisans making various glass goods by hand are joined with those of mass production. It is often acclaimed to be the perfect short documentary.
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Glass (1989 film)
Glass is a 1989 Australian erotic thriller which was the feature debut of Chris Kennedy.
Cast
Production
Chris Kennedy made the movie shortly after leaving film school:
Reception
According to Kennedy the film sold very well overseas and recouped a fair amount of its budget. The director calls it "a bit of a raw and amateurish effort, but there are bits and pieces of it I quite like."
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External links
Fiberglass
Fiberglass (or fibreglass) is a type of fiber reinforced plastic where the reinforcement fiber is specifically glass fiber. The glass fiber may be randomly arranged, flattened into a sheet (called a chopped strand mat), or woven into a fabric. The plastic matrix may be a thermosetting plastic – most often epoxy, polyester resin – or vinylester, or a thermoplastic.
The glass fibers are made of various types of glass depending upon the fiberglass use. These glasses all contain silica or silicate, with varying amounts of oxides of calcium, magnesium, and sometimes boron. To be used in fiberglass, glass fibers have to be made with very low levels of defects.
Fiberglass is a strong lightweight material and is used for many products. Although it is not as strong and stiff as composites based on carbon fiber, it is less brittle, and its raw materials are much cheaper. Its bulk strength and weight are also better than many metals, and it can be more readily molded into complex shapes. Applications of fiberglass include aircraft, boats, automobiles, bath tubs and enclosures, swimming pools, hot tubs, septic tanks, water tanks, roofing, pipes, cladding, casts, surfboards, and external door skins.
Ripple (charitable organisation)
Ripple is a non-profit click-to-donate internet site and search engine which passes 100% of its revenue to other charities. Launched on May 4, 2007, they make their revenue by attaining sponsorship from advertisers in return for delivering users who will see their advertisements.
The co-founders of Ripple are Jehan Ratnatunga, Matthew Tilleard, Mack Nevill and Simon Griffiths.
How Ripple Works
The Ripple web site generates revenue through two routes: clicking and searching.
A user can click to choose a preferred form of charity, bringing up an advertisement from a sponsor. The sponsor pays Ripple every time an advertisement is viewed, Ripple assigns the sponsor payment to the charity of the web user's choice.
Users can also use the in-built search engine, powered by Google Co-op. Each search generates advertising revenue.
Ripple also enjoys a presence in online social networks such as Facebook and MySpace. Users are now able to add applets that function in the same way as the Ripple web site to their profiles and display how philanthropic they are via a 'contributions' count.
Deep (Niacin album)
Deep is the third studio album from the jazz rock fusion trio Niacin, released in March 2000.
The album is heavily loaded with Billy Sheehan's powerful bass solos and features contributions from guest musicians Glenn Hughes on vocals and Steve Lukather on guitar.
Track listing
Personnel
Musicians
Guest musicians
External links
References
