Comparing Speeds By jkavanagh Sep 1, 2010 The growth rate of some bamboo (3 ft/day) 0.0000237 Sep 2, 2010 The tip of a 1/3-in-long hour hand on a wristwatch 0.00000275 Sep 3, 2010 Garden snail 0.03 Sep 4, 2010 Three-toed sloth 0.15 Sep 5, 2010 Giant tortoise 0.17 Sep 6, 2010 Spider 1.17 Sep 7, 2010 The average current of the Mississippi River. 3 Sep 8, 2010 Chicken 9 Sep 9, 2010 Pig 11 Sep 10, 2010 Squirrel 12 Sep 11, 2010 The average speed of Roger Bannister 15 Sep 12, 2010 Black mamba snake 20 Sep 13, 2010 The fastest passenger elevator 23 Sep 14, 2010 Elephant 25 Sep 15, 2010 Cat 30 Sep 15, 2010 Grizzly bear 30 Sep 15, 2010 Wart hog 30 Sep 16, 2010 Giraffe 32 Sep 17, 2010 Rabbit 35 Sep 18, 2010 Greyhound 39 Sep 19, 2010 Coyote 43 Sep 20, 2010 Elk 45 Sep 21, 2010 Horse 48 Sep 22, 2010 Thompson's gazelle 50 Sep 22, 2010 Lion 50 Sep 23, 2010 The "Beast" roller coaster, 65 Sep 24, 2010 Cheetah 70 Sep 25, 2010 Speed of ball in world's fastest recorded pitch 100 Sep 26, 2010 Fastest tennis serve by Andy Roddick, USA. 155 Sep 27, 2010 Fastest downhill skier. 156 Sep 28, 2010 Free Fall Skydiving 185 Sep 29, 2010 The speed of a nerve impulse 205 Sep 30, 2010 Peregrine falcon 217 Oct 1, 2010 Fastest tornado wind speed. 318 Oct 2, 2010 Top speed of a formula one race car. 350 Oct 3, 2010 World’s fastest train, the TGV in France. 358 Oct 4, 2010 The speed of sound at sea level at 68 degrees F. 758 Oct 5, 2010 The fastest aircraft, the Lockheed SR-71. 2,193 Oct 6, 2010 The speed of a bullet 2,250 Oct 7, 2010 The highest man-made spinning speed 4,500 Oct 8, 2010 The speed reached by the space shuttle Columbia. 16,700 Oct 9, 2010 Escape velocity from the Earth. 25,200 Oct 10, 2010 An Atlas SLV-3C launcher 32,114 Oct 11, 2010 The average orbital speed of the earth 66,641 Oct 12, 2010 The orbital speed of an electron in a uranium atom. 5,406,077 Oct 13, 2010 The speed of light 670,251,600