Snail (0.0394 inch), 1 millimeter. Pedestrian (39.37 inches) 1 meter = 1.09 ya. Horse, walking, 1.2 meters =1.31 yards. Pedestrian, quick walk, 2 meters = 2.19 ya. Horse, trotting, 3.5 meters = 3.82 yards. Mild wind, 4 meters = 4.37 yards. Horse, galloping, 4.5 meters = 4.91 yards. Steamer, ordinary, 5 meters = 5.47 yards. Sail-boat, 8 meters = 8.75 yards. Ocean steamer, 10 meters = 10.93 yards. Skater, 12 meters = 13.08 yards. Freight train, 12 meters = 13.08 yards. Gale, 17 meters =18.53 yards. Passenger train, 18 meters = 19.62 yards. Carrier pigeon, 18 meters = 19.62 yards. Bicycle, racing, 20 meters = 21.87 yards. Race horse, 25 meters = 27.05 yards. Express train, 26 meters = 28.14 yards. Swallow, 45 meters = 49.05 yards. Sound, 330 meters = 360.70 yards. Rifle-ball (breech-loader), 430 meters =

468.70 yards. Cannon ball, 450 meters = 490.50 yards. Axial revolution of the earth at equator, 450 meters = 490.50 yards. Revolutions of the earth around the sun, 30 kilometers = 18.64 miles. Light, 300,000 kilometers = 186,400 miles. Electricity, 400,000 kilometers = 248,500 mi.