IN: Zhang Heng (Chinese: Zhang Heng ; AD 78-139), formerly romanized as Chang Heng, was a Han Chinese polymath from Nanyang who lived during the Han dynasty. Educated in the capital cities of Luoyang and Chang'an, he achieved success as an astronomer, mathematician, scientist, engineer, inventor, geographer, cartographer, artist, poet, statesman, and literary scholar. Zhang Heng began his career as a minor civil servant in Nanyang. Eventually, he became Chief Astronomer, Prefect of the Majors for Official Carriages, and then Palace Attendant at the imperial court.

Zhang Heng is often credited with inventing the first odometer, an achievement also attributed to Archimedes (c. 287-212 BC) and Heron of Alexandria (fl. AD 10-70). Similar devices were used by the Roman and Han-Chinese empires at about the same period. By the 3rd century, the Chinese had termed the device the ji li gu che, or "li-recording drum carriage" (the modern measurement of li = 500 m/1640 ft). Ancient Chinese texts describe the mechanical carriage's functions; after one li was traversed, a mechanically driven wooden figure struck a drum, and after ten li had been covered, another wooden figure struck a gong or a bell with its mechanically operated arm. However, there is evidence to suggest that the invention of the odometer was a gradual process in Han Dynasty China that centered on the "huang men"--court people (i.e. eunuchs, palace officials, attendants and familiars, actors, acrobats, etc.) who followed the musical procession of the royal "drum-chariot". There is speculation that at some time during the 1st century BC the beating of drums and gongs was mechanically driven by the rotation of the road wheels. This might have actually been the design of Luoxia Hong (c. 110 BC), yet by at least 125 the mechanical odometer carriage was already known, as it was depicted in a mural of the Xiao Tang Shan Tomb. The south-pointing chariot was another mechanical device credited to Zhang Heng. It was a non-magnetic compass vehicle in the form of a two-wheeled chariot. Differential gears driven by the chariot's wheels allowed a wooden figurine (in the shape of a Chinese state minister) to constantly point to the south, hence its name. The Song Shu (c. AD 500 ) records that Zhang Heng re-invented it from a model used in the Zhou Dynasty era, but the violent collapse of the Han Dynasty unfortunately did not allow it to be preserved. Whether Zhang Heng invented it or not, Ma Jun (200-265) succeeded in creating the chariot in the following century.
QUESTION: What is the south-point chariot?
IN: O'Neal was born on March 6, 1972, in Newark, New Jersey, to Lucille O'Neal and Joe Toney, who played high school basketball (he was an All-State guard) and was offered a basketball scholarship to play at Seton Hall. Toney struggled with drug addiction and was imprisoned for drug possession when O'Neal was an infant. Upon his release, he did not resume a place in O'Neal's life and instead agreed to relinquish his parental rights to O'Neal's stepfather, Phillip A. Harrison, a career Army sergeant. O'Neal remained estranged from his biological father for decades; O'Neal had not spoken with Toney or expressed an interest in establishing a relationship.

O'Neal missed the first 12 games of the 2002-2003 season recovering from toe surgery. He was sidelined with hallux rigidus, a degenerative arthritis in his toe. He waited the whole summer until just before training camp for the surgery and explained, "I got hurt on company time, so I'll heal on company time." O'Neal debated whether to have a more invasive surgery that would have kept him out an additional three months, but he opted against the more involved procedure. The Lakers started the season with a record of 11-19. At the end of the season, the Lakers had fallen to the fifth seed and failed to reach the Finals in 2003. For the 2003-04 season, the team made a concerted off-season effort to improve its roster. They sought the free-agent services of forward Karl Malone and aging guard Gary Payton, but due to salary cap restrictions, could not offer either one nearly as much money as they could have made with some other teams. O'Neal assisted in the recruitment efforts and personally persuaded both men to join the squad. Ultimately, both signed, each forgoing larger salaries in favor of a chance to win an NBA championship, which neither had accomplished in his career (and which neither would achieve with the Lakers). At the beginning of the 2003-04 season, O'Neal wanted a contract extension with a pay raise on his remaining three years for $30 million. The Lakers had hoped O'Neal would take less money due to his age, physical conditioning, and games missed due to injuries. During a preseason game, O'Neal had yelled at Lakers owner Jerry Buss, "Pay me." There had been increasing tension between O'Neal and Bryant. The feud climaxed during training camp prior to the 2003-2004 season when Bryant, in an interview with ESPN journalist Jim Gray, criticized O'Neal for being out of shape, a poor leader, and putting his salary demands over the best interest of the Lakers. The Lakers made the playoffs in 2004 and lost to the Detroit Pistons in the 2004 NBA Finals. Lakers assistant coach Tex Winter said, "Shaq defeated himself against Detroit. He played way too passively. He had one big game ... He's always interested in being a scorer, but he hasn't had nearly enough concentration on defense and rebounding." After the series, O'Neal was angered by comments made by Lakers general manager Mitch Kupchak regarding O'Neal's future with the club, as well as by the departure of Lakers coach Phil Jackson at the request of Buss. O'Neal made comments indicating that he felt the team's decisions were centered on a desire to appease Bryant to the exclusion of all other concerns, and O'Neal promptly demanded a trade. Kupchak wanted the Dallas Mavericks' Dirk Nowitzki in return but Mavericks owner Mark Cuban refused to let his 7-footer go. However, Miami showed interest, and eventually the two clubs agreed. Winter said, "[O'Neal] left because he couldn't get what he wanted--a huge pay raise. There was no way ownership could give him what he wanted. Shaq's demands held the franchise hostage, and the way he went about it didn't please the owner too much."
QUESTION:
What year was his toe surgery?