BodyInterestingOn the average a fart is composed of about 59% nitrogen, 21% hydrogen, 9% carbon dioxide, 7% methane, and 4% oxygen. Less than 1% is what makes them stink.5052k
BodyInterestingThe sound you hear when you crack your knuckles is actually caused by a gas bubble rapidly forming in the joint fluid, not bubbles popping.2862k
ScienceInterestingAt room temperature, the average air molecule travels at the speed of a rifle bullet.631k
PlacesMind-BlowingA natural gas vent in Iraq known as Baba Gurgur (The Eternal Fire) has been burning continuously for at least 2,500 years. Ancient writers including Plutarch described eternal flames in the region, and local tradition connects it to the 'fiery furnace' from the Book of Daniel.245k
BodyInterestingAn average adult produces about half a liter of flatulent gas per day, resulting in an average of about fourteen occurrences of flatulence a day.23954