Dynamite

Dynamite is an explosive material based on nitroglycerin, using diatomaceous earth (AmE: kieselgur; BrE: kieselguhr), or another adsorbent substance such as powdered shells or clay. Dynamites using organic materials as sorbents such as sawdust are less stable and such use has been generally discontinued. Dynamite was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, and patented in 1867.

Invention, purpose, and use

Dynamite was invented by Alfred Nobel and was the first safely manageable explosive stronger than black powder. Nobel obtained patents for his invention in England on May 7, 1867, in Sweden on October 19, 1867. After its introduction, dynamite rapidly gained wide-scale use as a safe alternative to black powder and nitroglycerin. Nobel tightly controlled the patents, and unlicensed duplicating companies were quickly shut down. However, a few American businessmen got around the patent by using a slightly different formula.

Dynamite (magazine)

Dynamite was a magazine for children founded by Jenette Kahn and published by Scholastic Inc. from 1974 until 1992. The magazine changed the fortunes of the company, becoming the most successful publication in its history and inspiring two similar periodicals for Scholastic, Wow and Bananas. Kahn edited the first three issues of Dynamite. The next 109 issues were edited by Jane Stine, wife of children's author R. L. Stine, followed by Linda Williams Aber (aka "Magic Wanda"). The writer-editor staff was future children's book writer Ellen Weiss, future novelist-lawyer Alan Rolnick and future screenwriter-playwright Mark Saltzman. The first issue, Dynamite #1, was dated March 1974 and featured the characters Hawkeye and Radar from the television series M*A*S*H. The final issue, Dynamite #165, was dated March 1992 and featured actress Julia Roberts and actor Arnold Schwarzenegger.

Description

Dynamite magazine served as an activity book each month, offering tricks, recipes, games, and contests. It also served as a monthly update on popular culture, and it was a way for children to pass the time before the advent of cable television and VCRs. Dynamite magazine was available through subscription, in limited quantities at newsstands, and through monthly orders circulated by school teachers using Scholastic's Arrow Book Club.

Dynamite (Stina Nordenstam album)

Dynamite is an album by Swedish singer-songwriter Stina Nordenstam, released in 1996. The album marked a turning point in her career as she experimented with introspective lyrics and darker musical tones, away from her jazz-influenced earlier albums.

Two of the songs on the album references the real-world murders of children, "Mary Bell" (Mary Bell, aged eleven, killed two children aged three and four) and "This Time, John" (John Hron, aged 14, was beaten and killed by neo-Nazis).

Track listing

All songs composed by Stina Nordenstam

Personnel

Operation Sigma Sigma

The Sigma is an experimental glider developed in Britain from 1966 by a team led by Nicholas Goodhart. After disappointing performance during flight testing the Sigma was passed on to a Canadian group which carried out modifications, making the Sigma more competitive.

Design and development

Designed to compete in the 1970 World Championships, the team aimed to develop a wing that would climb well through a high lift coefficient and a large wing area, but equally had the "maximum possible reduction of area for cruise at low lift coefficients". At the same time for the minimum possible drag they aimed for "extensive" laminar flow. To achieve this they employed flaps that would alter both wing area and wing camber. Based on analysis of the nature of thermals encountered in cross-country flying, they reasoned that by having a slow turning circle, their sailplane could stay close to the central (and strongest) part of the thermal and gain maximum benefit.

Its unusual feature is its ability to vary its wing area using Fowler flaps. It had been tried before by the Hannover Akaflieg in 1938 with their AFH-4, the South African Beatty-Johl BJ-2 Assegai and the SZD Zefir gliders.

Sigma (duo)

Sigma is an English drum and bass duo consisting of Cameron Edwards and Joe Lenzie. They met at Leeds University at drum and bass nights. Their 2010 collaboration with DJ Fresh, "Lassitude", peaked at number 98 on the UK Singles Chart. Their single "Nobody to Love" topped the UK Singles Chart, becoming their first UK number one. Follow-up single "Changing", featuring Paloma Faith, also got to number one.

Career

Formation

Lenzie and Edwards met in 2006 at Leeds University; Cameron was working in local record store Tribe Records and with Echo Location's Obi running local night Event Horizon, while Lenzie was DJing hip-hop and warming up Event Horizon for such acts as Rahzel and Grandmaster Flash. Once they had finished in Leeds, they relocated to London and became a three-piece with Edwards' school friend Ben Mauerhoff, being signed under DJ Fresh's Breakbeat Kaos. After a while, long distances took their toll – Edwards and Mauerhoff were based in Surrey, whereas Lenzie was based in Harpenden, Hertfordshire and they couldn't get three people into the Harpenden studio – and Mauerhoff left. In December 2008 they formed their own record label, Life Recordings (so called because, according to Lenzie, the industry demanded that it be their life). Its inaugural release was a VIP mix of their early Bingo Beats single "El Presidente".

Six Sigma

Six Sigma is a set of techniques and tools for process improvement. It was introduced by engineer Bill Smith while working at Motorola in 1986.Jack Welch made it central to his business strategy at General Electric in 1995. Today, it is used in many industrial sectors.

Six Sigma seeks to improve the quality of the output of a process by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes. It uses a set of quality management methods, mainly empirical, statistical methods, and creates a special infrastructure of people within the organization, who are experts in these methods. Each Six Sigma project carried out within an organization follows a defined sequence of steps and has specific value targets, for example: reduce process cycle time, reduce pollution, reduce costs, increase customer satisfaction, and increase profits.

The term Six Sigma originated from terminology associated with statistical modeling of manufacturing processes. The maturity of a manufacturing process can be described by a sigma rating indicating its yield or the percentage of defect-free products it creates. A six sigma process is one in which 99.99966% of all opportunities to produce some feature of a part are statistically expected to be free of defects (3.4 defective features per million opportunities). Motorola set a goal of "six sigma" for all of its manufacturing operations, and this goal became a by-word for the management and engineering practices used to achieve it.