F@rts are created mostly by E. coli.: On the average a f@rt is composed of about 59% nitrogen, 21% hydrogen, 9% carbon dioxide, 7% methane, and 4% oxygen. Less than 1% is what makes them stink. The temperature of a f@rt at time of creation is 98.6 degrees Fahrenheit. F@rts have been clocked at a speed of 10 feet per second. A person produces about half a liter of f@rts a day. Although they won't admit it, women f@rt as much as men. Termites are the largest producers of f@rts. F@rts are flammable. The word "f'@rt" comes from the Old English "feortan" (meaning "to break wind"). Excess gas in the intestinal is medically termed "flatulence."