Problem: Zheng He (Chinese: Zheng He ; 1371-1433 or 1435) was a Chinese mariner, explorer, diplomat, fleet admiral, and court eunuch during China's early Ming dynasty. He was originally born as Ma He in a Muslim family, later adopted the conferred surname Zheng from Emperor Yongle. Zheng commanded expeditionary voyages to Southeast Asia, South Asia, Western Asia, and East Africa from 1405 to 1433. His larger ships stretched 120 meters or more in length.

Zheng He's sailing charts, the Mao Kun map, were published in a book entitled the Wubei Zhi (A Treatise on Armament Technology) written in 1621 and published in 1628 but traced back to Zheng He's and earlier voyages. It was originally a strip map 20.5 cm by 560 cm that could be rolled up, but was divided into 40 pages which vary in scale from 7 miles/inch in the Nanjing area to 215 miles/inch in parts of the African coast. Investigation into folios 19V to 20R of the Mao Kun Map which covers the Indian Ocean including the South India, Sri Lanka, the Maldives, and East Africa suggests that it is a composite of four maps, one for Sri Lanka, one for South India one for the Maldives and one for around 400 km of the East African coast, no further south than 6 degrees south of the Equator. Each of these maps is positioned at a different orientation to fit with the ocean currents and winds required of a sailing chart, rather than a formal map. The analysis also suggests that Arabic-speaking pilots with a detailed knowledge of the African coast were involved in the cartography. There is little attempt to provide an accurate 2-D representation; instead the sailing instructions are given using a 24-point compass system with a Chinese symbol for each point, together with a sailing time or distance, which takes account of the local currents and winds. Sometimes depth soundings are also provided. It also shows bays, estuaries, capes and islands, ports and mountains along the coast, important landmarks such as pagodas and temples, and shoal rocks. Of 300 named places outside China, more than 80% can be confidently located. There are also fifty observations of stellar altitude.

What is the sailing charts ?

Answer with quotes: the Mao Kun map, were published in a book entitled the Wubei Zhi (A Treatise on Armament Technology) written in 1621 and published in 1628

Problem: Arthur Lindsay Hassett MBE (28 August 1913 - 16 June 1993) was a cricketer who played for Victoria and Australia. The diminutive Hassett was an elegant middle-order batsman, described by Wisden as, "... a master of nearly every stroke ... his superb timing, nimble footwork and strong wrists enabled him to make batting look a simple matter". His sporting career at school singled him out as a precocious talent, but he took a number of seasons to secure a regular place in first-class cricket and initially struggled to make large scores.

Hassett allayed doubt about his selection when he began the tour with innings of 43, 146, 148 and 220 not out, against Worcestershire, Oxford University, Leicestershire and Cambridge University respectively as Australia won their first four matches by an innings. He added 57 and 98 in the next two matches against the Marylebone Cricket Club and Hampshire, and despite failing to pass 30 in the next four innings, he was selected to make his Test debut at Nottingham in the first match of the series. Hassett had an ignominious debut, scoring one and two in a high-scoring draw in which almost 1,500 runs were scored for the loss of only 24 wickets on a "batting paradise". He maintained his county form between Tests, adding 118 against Lancashire before scoring his only half-century in the Tests, adding 56 and 42 at Lord's in the drawn Second Test. The Third Test was abandoned without a ball being bowled due to rain, and Hassett prepared for what would be the decisive Fourth Test by scoring 94 and 127 in consecutive matches against Yorkshire and Nottinghamshire. The match at Headingley in Leeds was Australia's only Test victory, which was enough to ensure a drawn series and the retention of The Ashes. In a low-scoring match in a batsman-friendly series, Australia, chasing a target of only 105 runs to win, had slumped to 3/50 when Hassett came to the crease as an approaching storm threatened to either end the game or make the pitch difficult to bat on. Hassett calmly hit 33 runs from 36 balls, to guide the tourists to a five-wicket victory, much to the relief of his captain Don Bradman, who was so nervous about the outcome that he could not watch the play. The innings earned Hassett a reputation of being calm under pressure, and Bradman later wrote that Hassett was a "masterful player" in a crisis. After the match-winning innings, Hassett failed to pass 31 in his next six innings before Australia lost the Fifth Test by an innings and 579 runs, the heaviest defeat in Test history. He made 42 and 10 in the record-breaking match, and added a pair of half-centuries against Sussex thereafter. As he finished third in the batting averages for the tour, with 1,589 runs at 52.97, and the dry summer resulted in pitches mostly favourable to batting, Wisden found his Test performances, in which he made 199 runs at 24.88, anomalous: Hassett, adding together the runs he made and the runs he saved, was one of the most useful men on the side. He never quite fulfilled the promise of a sensational start ... He appeared to make his strokes very late and, although adopting almost a two-eyed stance, had, so far as could be seen, no technical faults ... there was a good deal of surprise that he did not come off in the big matches although it must not be forgotten that his second innings at Leeds counted a lot in Australia's victory.

Did he do well in his third test as well?

Answer with quotes:
The Third Test was abandoned without a ball being bowled due to rain, and Hassett prepared for what would be the decisive Fourth Test