A railgun is a device that uses electromagnetic force to launch high velocity projectiles, by means of a sliding armature that is accelerated along a pair of conductive "rails".
 It is typically constructed as a weapon and the projectile normally does not contain explosives, relying on the projectile's high speed to inflict damage.
 The railgun uses a pair of parallel conductors, or rails, along which a sliding armature is accelerated by the electromagnetic effects of a current that flows down one rail, into the armature and then back along the other rail.
 It is based on principles similar to those of the homopolar motor.
The term "cant deficiency" is defined in the context of travel of a rail vehicle at constant speed on a constant radius curve.
 Cant itself is a British synonym for the superelevation of the curve, that is, the elevation of the outside rail minus the elevation of the inside rail.
 Cant deficiency is present when a vehicle's speed on a curve is greater than the speed at which the components of wheel to rail force are normal to the plane of the track.
 In that case, the resultant force (aggregated force of gravitational force and centrifugal force) exerts the outside rail more than the inside rails, in which it creates lateral acceleration toward outside of the curve.
 In order to reduce cant deficiency, the speed can be reduced or the superelevation can be increased.
 The amount of cant deficiency is expressed in term of required superelevation to be added in order to bring the resultant force into balance between the two rails.
 In the contrary, it is said to be "cant excess" if the resultant force exerts more against the inside rail than the outside rail, for instance, a high superelevation curve with a train traveling at a low speed.
Pet Force is a series of books for young readers.
 It is a spin-off of "Garfield", in which the main animal characters of the comic series are portrayed as comic book superheroes.
 The action takes place on planet Polyester.
Garfield's Pet Force is a 2009 direct-to-video animation comedy family Computer animation (CGI) film based on characters from the Jim Davis comic strip "Garfield" and loosely based on the Pet Force novel series.
 It is the sequel to "Garfield Gets Real" and "Garfield's Fun Fest".
 It was released on DVD and Blu-ray Disc on June 16, 2009.
 It was written by Garfield creator Jim Davis.
 In 2010 it was released in 3-D.
Garfield Gets Real (also known as Garfield 3D in some regions) is a 2007 American CGI movie starring Garfield.
 It was produced by Paws, Inc. in cooperation with Davis Entertainment, and The Animation Picture Company and distributed by 20th Century Fox Home Entertainment.
 It was written by Garfield's creator Jim Davis, who started working on the script in the fall of 1996.
 This was the first fully animated Garfield film since the last "Garfield and Friends" TV episode aired in 1995, and the first to be written by Davis since the 1991 television special "Garfield Gets a Life".
 The movie was released in theaters August 9, 2007, and the DVD was shipped to stores on November 20, 2007.
 Gregg Berger, an actor from the original series, reprises his role of Odie, but Garfield is now voiced by veteran voice actor Frank Welker, since the original actor Lorenzo Music died in 2001 and Jon is voiced by Wally Wingert, as Thom Huge retired that same year.
 The film's success led to two sequels: "Garfield's Fun Fest" (2008) and "Garfield's Pet Force" (2009).
Hero of the Rails is a 2009 CGI adventure drama special and film spin-off of the TV series "Thomas & Friends".
 The film introduces full CGI animation, replacing model work and the addition of a voice cast for the characters alongside the narration to the TV series.
 The film features the voice of Ben Small and Martin Sherman as Thomas the Tank Engine for the UK and US respectively.
 It was first released on DVD and to iTunes on 12 January 2010.
 To promote the film a "Day Out With Thomas 2010: The Hero of the Rails Tour" was held at locations such as the Illinois Railway Museum, where guests could participate in activities such as arts and crafts or ride on a 15-ton replica of Thomas the Tank Engine.
 A mobile app, "Thomas & Friends: Hero of the Rail", was released in May 2011.
Brian Francis Wynne Garfield (born January 26, 1939) is an American novelist and screenwriter.
 He wrote his first published book at the age of eighteen and wrote several novels under such pen names as "Frank Wynne" and "'Brian Wynne" before gaining prominence when his book "Hopscotch" (1975) won the 1976 Edgar Award for Best Novel.
 He is best known for his 1972 novel "Death Wish", which was adapted for the 1974 film of the same title, followed by four sequels, and an upcoming remake.
 His follow-up 1975 sequel to "Death Wish", "Death Sentence", was very loosely adapted into the 2007 film of the same name; it had an entirely different storyline, but with the novel's same look on vigilantism.
 Garfield is also the author of "The Thousand-Mile War: World War II in Alaska and the Aleutians", which was a finalist for the Pulitzer Prize for History.
 Garfield's latest book, published in 2007, is "Meinertzhagen", the biography of controversial British intelligence officer Richard Meinertzhagen.
Garfield's Fun Fest is a 2008 CGI movie starring Garfield.
 It was produced by Paws, Inc. in cooperation with The Animation Picture Company and distributed by 20th Century Fox Home Entertainment.
 It was written by Garfield's creator Jim Davis as a sequel to "Garfield Gets Real".
 The DVD was released in stores on August 5, 2008.
 It was followed by a third direct to video film, "Garfield's Pet Force," in 2009.
Leslie Yalof Garfield (born June 5, 1960) is a Professor of Law at Pace Law School.
 Professor Garfield got her start in the Academic Support arena and was a force in creating the Association of American Law Schools's (AALS) Section on Academic Support.
 Professor Garfield teaches a wide-variety of law school courses and is currently focusing her teaching on the traditional first year course; Contracts, Criminal Law and Torts.
 She also serves as an editor of the Journal of Court Innovation.
 Professor Garfield has emerged as an expert on teaching law to non-lawyers, law students, and those returning to the profession.
 She regularly lectures nationally on substantive law and legal skills.
 In addition to teaching at Pace, she has appeared on News 12 Westchester and regularly lectures for law firms and companies including Kaplan Test Prep bar review programs and New Directions, a program for non-practicing lawyers interested in returning to the work-force.
Garfield: The Movie is a 2004 American family comedy film directed by Peter Hewitt inspired by Jim Davis' comic strip of the same name.
 It stars Breckin Meyer as Jon Arbuckle, Jennifer Love Hewitt as Dr. Liz Wilson, and features Bill Murray as the voice of Garfield.
 Garfield was created with computer animation, though all other animals were real.
 The film was produced by Davis Entertainment Company and distributed by 20th Century Fox.
 The film shares several similarities to the 1982 animated special "Here Comes Garfield".
 "Garfield: The Movie" was released in the United States on June 11, 2004.
 Despite having negative reviews from critics, the film was a box office success, grossing $200 million on a $50 million budget.
 A sequel, "", was released in June 2006.

Question: Which is a sequel to more films, Garfield's Pet Force or Hero of the Rails?
Answer: Garfield's Pet Force