Problem: Background: Shen Kuo (Chinese: Chen Gua ; 1031-1095), courtesy name Cunzhong (Cun Zhong ) and pseudonym Mengqi (now usually given as Mengxi) Weng (Meng Xi Weng ), was a Han Chinese polymathic scientist and statesman of the Song dynasty (960-1279). Excelling in many fields of study and statecraft, he was a mathematician, astronomer, meteorologist, geologist, zoologist, botanist, pharmacologist, agronomist, archaeologist, ethnographer, cartographer, encyclopedist, general, diplomat, hydraulic engineer, inventor, academy chancellor, finance minister, governmental state inspector, poet, and musician.
Context: Since the time of the engineer and inventor Ma Jun (c. 200-265), the Chinese had used the south-pointing chariot, which did not employ magnetism, as a compass. In 1044 the Collection of the Most Important Military Techniques (Wu Jing Zong Yao ; Wujing Zongyao) recorded that fish-shaped objects cut from sheet iron, magnetized by thermoremanence (essentially, heating that produced weak magnetic force), and placed in a water-filled bowl enclosed by a box were used for directional pathfinding alongside the south-pointing chariot.  However, it was not until the time of Shen Kuo that the earliest magnetic compasses would be used for navigation. In his written work, Shen Kuo made the first known explicit reference to the magnetic compass-needle and the concept of true north. He wrote that steel needles were magnetized once they were rubbed with lodestone, and that they were put in floating position or in mountings; he described the suspended compass as the best form to be used, and noted that the magnetic needle of compasses pointed either south or north. Shen Kuo asserted that the needle will point south but with a deviation, stating "[the magnetic needles] are always displaced slightly east rather than pointing due south."  Shen Kuo wrote that it was preferable to use the twenty-four-point rose instead of the old eight compass cardinal points -- and the former was recorded in use for navigation shortly after Shen's death. The preference of use for the twenty-four-point-rose compass may have arisen from Shen's finding of a more accurate astronomical meridian, determined by his measurement between the pole star and true north; however, it could also have been inspired by geomantic beliefs and practices. The book of the author Zhu Yu, the Pingzhou Table Talks published in 1119 (written from 1111 to 1117), was the first record of use of a compass for seafaring navigation. However, Zhu Yu's book recounts events back to 1086, when Shen Kuo was writing the Dream Pool Essays; this meant that in Shen's time the compass might have already been in navigational use. In any case, Shen Kuo's writing on magnetic compasses has proved invaluable for understanding China's earliest use of the compass for seafaring navigation.
Question: Was there anything Shen disliked about magnetic needle compasses?
Answer: 

Background: Clemens was born in Dayton, Ohio, the fifth child of Bill and Bess (Lee) Clemens. He is of German descent, his great-grandfather Joseph Clemens having immigrated in the 1880s. Clemens's parents separated when he was an infant. His mother soon married Woody Booher, whom Clemens considers his father.
Context: In the 1986 American League Championship Series, Clemens pitched poorly in the opening game, watched the Boston bullpen blow his 3-0 lead in the bottom of the ninth inning of Game 4, and then pitched a strong Game 7 to wrap up the series for Boston. The 1986 ALCS clincher was Clemens' first postseason career victory. He did not win his second until 13 years later.  After a bad start in Game 2 of the 1986 World Series, Clemens returned to the mound for Game 6, which would have clinched the World Series for the Boston Red Sox. Clemens left the game after 7 innings leading 3-2, but the Red Sox went on to lose the game in the 10th inning, and subsequently, the championship. Clemens' departure was highly debated and remains a bone of contention among the participants. Red Sox manager John McNamara claimed Clemens took himself out due to a blister, though Clemens strongly denies that.  Clemens greatest postseason failure came in the second inning of the final game of the 1990 ALCS against the Oakland Athletics, when he was ejected for arguing balls and strikes with umpire Terry Cooney, accentuating the A's three-game sweep of the Red Sox. He was suspended for the first five games of the 1991 season and fined $10,000. Clemens had two other playoff no-decisions, in 1988 and 1995, both occurring while Boston was being swept. Clemens' overall postseason record with Boston was 1-2 with a 3.88 ERA, and 45 strikeouts and 19 walks in 56 innings.
Question: How did he perform in game 6?
Answer:
Clemens left the game after 7 innings leading 3-2,