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How fast is 10,000 kilometers per hour?

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 It's about 95 times as fast as a Knuckleball (baseball) In other words, the speed of a Knuckleball (baseball) is 0.011 times 10,000 kilometers per hour. (a.k.a. knuckler, a.k.a. floater, a.k.a. dancer, a.k.a. butterfly ball) (major league average)The average speed of major league knuckleball pitch is 110 kph. Eddie Cicotte, who was later implicated in the 1919 Black Sox scandal, is credited with developing the pitch ca. 1906. It's about 100 times as fast as a Gazelle In other words, the speed of a Gazelle is 0.01 times 10,000 kilometers per hour. (for Thomson's Gazelle, a.k.a. Eudorcas thomsoni, a.k.a. "Tommie", a.k.a. "Tommy")A Thomson's gazelle can reach speeds of up to 80 kph. The gazelle's speed doesn't match that of its chief predator, the cheetah, but a gazelle's endurance usually ensures an escape in distances greater than 500 m (0.3 mi). It's about 100 times as fast as a Hare In other words, the speed of a Hare is 0.01 times 10,000 kilometers per hour. (for European Brown Hare, a.k.a. Brown Hare, a.k.a. Lepus europaeus, a.k.a. Brown Hare)The European Hare can run at speeds of up to 72 kph. While speed is a factor in their escapes, hares evade their chief predators — wolves, foxes, and golden eagles — by fleeing in a zigzag pattern. It's about 150 times as fast as a Greyhound In other words, 10,000 kilometers per hour is 138 times the speed of a Greyhound, and the speed of a Greyhound is 0.00725 times that amount. (a.k.a. English greyhound) (approximate maximum speed)Greyhounds reach average race speeds of 72.4 kph. Despite their racing prowess, greyhounds are not considered energetic dogs — the typical greyhound race requires the dogs to run for less than 35 seconds. It's about 150 times as fast as Secretariat In other words, 10,000 kilometers per hour is 165 times the speed of Secretariat, and the speed of Secretariat is 0.00606 times that amount. (at Belmont Stakes, 1973)Setting a record finish, Secretariat ran the Belmont Stakes — a 12 furlong race length — in 2:24, for an average speed of 60.4 kph in 1973. His margin of victory in the race, also a record-setter, was 31 lengths. It's about 250 times as fast as Michael Johnson In other words, 10,000 kilometers per hour is 268.40 times the speed of Michael Johnson, and the speed of Michael Johnson is 0.003726 times that amount. (a.k.a. Michael Duane Johnson) (sprinter; 1967-) (at the Atlanta Olympics, 1996)Setting a record that stood for 12 years, Michael Johnson ran a 200 m in 0:19.32 for an average speed of 37.27 kph at the 1996 Olympics. Johnson was nicknamed "the Man with the Golden shoes" in recognition of the custom footwear worn during these races — a pair of Nikes with a left size of 10.5 and a right size of 11. It's about 250 times as fast as Usain Bolt In other words, the speed of Usain Bolt is 0.0037 times 10,000 kilometers per hour. (at the Beijing Olympics, 2008) (a.k.a. Usain St. Leo Bolt, OJ, C.D.) (sprinter; 1986-)Setting a world record, Usain Bolt ran a 100 m in 0:09.69 for an average speed of 37.2 kph at the 2008 Olympics. Furthermore, Bolt's margin of record breaking — 0.03 s — is the largest margin of victory in the history of digital measurements.