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A miniature DC brushless axial motor used in a Digital Data Storage drive, showing the integration with PCB construction techniques. The rotor shown to the right is magnetized axially with alternating polarity. An axial flux motor (axial gap motor, or pancake motor) is a geometry of electric motor construction where the gap between the rotor and stator, and therefore the direction of magnetic ...
L0 Series train on the under-construction Chūō Shinkansen, Yamanashi Prefecture, Japan A full trip on the Shanghai Transrapid maglev train Example of low-speed urban maglev system, Linimo Maglev (derived from magnetic levitation) is a system of rail transport whose rolling stock is levitated by electromagnets rather than rolled on wheels, eliminating rolling resistance. [1][2][3] Compared to ...
Pros and cons, derived from the Latin words "pro" (for) and "contra" (against), may refer to: Pros and Cons (TV series), a television series that aired from 1991 to 1992
Test firing at the United States Naval Surface Warfare Center Dahlgren Division in January 2008. The fireball is a result of pieces of the projectile shearing off during launch and igniting mid-air. [1] A railgun or rail gun, sometimes referred to as a rail cannon, is a linear motor device, typically designed as a ranged weapon, that uses electromagnetic force to launch high- velocity ...
The grammar schools debate[1] is a debate about the advantages and disadvantages of the existence of grammar schools in the United Kingdom. Grammar schools are state schools which select their pupils on the basis of academic ability, with pupils sitting an exam (called the 11-plus) in the last year of primary school to determine whether or not they gain a place. The debate on selective ...
The School Prayer Amendment is a proposed amendment to the United States Constitution intended by its proponents to protect the right of the students if they wish, to voluntarily pray in schools, although opponents argue it allows for government-sponsored prayer. In 1962 and 1963, the United States Supreme Court ruled that school prayer in the United States can not be enforced by government ...
Advertisements in schools is a controversial issue that is debated in the United States. Naming rights of sports stadiums and fields, sponsorship of sports teams, placement of signage, vending machine product selection and placement, and free products that children can take home or keep at school are all prominent forms of advertisements in schools. Debates on advertisements in schools can ...
Pros and Cons is an American crime drama television series that ran on ABC from September 26, 1991 to January 2, 1992, in the United States during the 1991–92 television season.