Problem: Background: James Watt  (30 January 1736 (19 January 1736 OS) - 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1781, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world. While working as an instrument maker at the University of Glasgow, Watt became interested in the technology of steam engines. He realised that contemporary engine designs wasted a great deal of energy by repeatedly cooling and reheating the cylinder. Watt introduced a design enhancement, the separate condenser, which avoided this waste of energy and radically improved the power, efficiency, and cost-effectiveness of steam engines.
Context: In 1776, the first engines were installed and working in commercial enterprises. These first engines were used to power pumps and produced only reciprocating motion to move the pump rods at the bottom of the shaft. The design was commercially successful, and for the next five years Watt was very busy installing more engines, mostly in Cornwall for pumping water out of mines.  These early engines were not manufactured by Boulton and Watt, but were made by others according to drawings made by Watt, who served in the role of consulting engineer. The erection of the engine and its shakedown was supervised by Watt, at first, and then by men in the firm's employ. These were large machines. The first, for example, had a cylinder with a diameter of some 50 inches and an overall height of about 24 feet, and required the construction of a dedicated building to house it. Boulton and Watt charged an annual payment, equal to one third of the value of the coal saved in comparison to a Newcomen engine performing the same work.  The field of application for the invention was greatly widened when Boulton urged Watt to convert the reciprocating motion of the piston to produce rotational power for grinding, weaving and milling. Although a crank seemed the obvious solution to the conversion Watt and Boulton were stymied by a patent for this, whose holder, James Pickard, and associates proposed to cross-license the external condenser. Watt adamantly opposed this and they circumvented the patent by their sun and planet gear in 1781.  Over the next six years, he made a number of other improvements and modifications to the steam engine. A double acting engine, in which the steam acted alternately on the two sides of the piston was one. He described methods for working the steam "expansively" (i.e., using steam at pressures well above atmospheric). A compound engine, which connected two or more engines was described. Two more patents were granted for these in 1781 and 1782. Numerous other improvements that made for easier manufacture and installation were continually implemented. One of these included the use of the steam indicator which produced an informative plot of the pressure in the cylinder against its volume, which he kept as a trade secret. Another important invention, one which Watt was most proud of, was the parallel motion which was essential in double-acting engines as it produced the straight line motion required for the cylinder rod and pump, from the connected rocking beam, whose end moves in a circular arc. This was patented in 1784. A throttle valve to control the power of the engine, and a centrifugal governor, patented in 1788, to keep it from "running away" were very important. These improvements taken together produced an engine which was up to five times as efficient in its use of fuel as the Newcomen engine.  Because of the danger of exploding boilers, which were in a very primitive stage of development, and the ongoing issues with leaks, Watt restricted his use of high pressure steam - all of his engines used steam at near atmospheric pressure.
Question: Were there any other models after that one?
Answer: Numerous other improvements that made for easier manufacture and installation were continually implemented.

Problem: Background: Oleg Aleksandrovich Prudius (Russian: Oleg Aleksandrovich Prudius; Ukrainian: Oleg Oleksandrovich Prudius, Oleh Oleksandrovych Prudius; born April 27, 1979) better known by his ring name Vladimir Kozlov, is a Ukrainian-American producer and retired professional wrestler. He is best known for his time in WWE, where he won the WWE Tag Team Championship once with Santino Marella. He is trained in freestyle wrestling, rugby, football, sambo, kickboxing, judo, jujutsu, Brazilian jiu-jitsu and mixed martial arts. Prudius has also worked as a stage and screen actor, notably having a small role in Spike Lee's 25th Hour., and a walk-on role in the second season of the HBO series The Wire.
Context: On the April 4, 2008 episode of SmackDown, Kozlov made his official WWE debut as a villain, with the unique quirk of having no entrance music and no Titantron video - his "entrance" consisted of complete darkness except for a solitary spotlight following him to the ring. He defeated Matt Bentley in his first match, and over the following weeks, Kozlov would go on to easily win several matches, first against local talent and then established names including Colin Delaney, Funaki, Nunzio, Shannon Moore, Jimmy Wang Yang, Jamie Noble, and Domino. On the July 11 episode of SmackDown, Kozlov debuted an entrance theme and Titantron video as he defeated Stevie Richards.  In the following weeks, as Kozlov continued to easily win matches, he began demanding "better competition". On the September 12 episode of SmackDown, he started to seek that competition, attacking Jeff Hardy. Over the following weeks, Kozlov would continue attacking both Hardy and the WWE Champion Triple H, eventually starting a loose feud between the three of them over the WWE Championship. On the November 7 episode of SmackDown, Kozlov earned a match against Triple H for the WWE title at Survivor Series after defeating The Undertaker by disqualification after he was attacked by Jeff Hardy. The match was originally intended to include Kozlov, Jeff Hardy, and Triple H, although Hardy was removed due to a storyline injury. The result of this was the addition of Edge to the match while it was in progress, and ultimately Edge would go on to pin Triple H and win the title.  Continuing his pursuit of the WWE Championship, Kozlov competed in and was unsuccessful in winning a Beat the Clock Challenge match against ECW Champion Matt Hardy for another title shot. This led to the two meeting at Armageddon, where Kozlov gained his first pay-per-view win by defeating Hardy in a non-title match. Kozlov competed in the 2009 Royal Rumble match, entering as the sixth participant, but was eliminated by Triple H after eliminating The Great Khali, Carlito, and Montel Vontavious Porter. He then qualified to be part of the No Way Out Elimination Chamber match, where he was pinned for the first time after receiving a Last Ride from The Undertaker, though he still remained unpinned in one-on-one competition. Kozlov's undefeated streak in televised singles competition ended on the March 2, 2009 episode of Raw, in which he was defeated by Shawn Michaels; this match was for the opportunity to face The Undertaker at WrestleMania XXV. His first televised singles loss on SmackDown came against The Undertaker himself on March 13.
Question: Are there any other interesting aspects about this article?
Answer:
In the following weeks, as Kozlov continued to easily win matches, he began demanding "better competition".