“…he was doing a breath hydrogen test. If you know the amount of hydrogen someone is exhaling orally, it's a simple matter to extrapolate the amount they're exhaling rectally. This is because a fixed percentage of hydrogen produced in the colon is absorbed into the blood and, and when it reaches the lungs, exhaled. The breath hydrogen test has given flatus researchers a simple, consistent measure of gas production that does not require the subject to fart into a balloon.”

“Hydrogen is an odorless colorless gas which, given enough time, turns into people”

“In France, a chemist named Pilatre de Rozier tested the flammability of hydrogen by gulping a mouthful and blowing across an open flame, proving at a stroke that hydrogen is indeed explosively combustible and that eyebrows are not necessarily a permanent feature of one's face.”

“Research suggests that the earliest flying reptiles swallowed small pieces of volcanic rock and could breathe out flammable gases like hydrogen produced in their own bodies. It is hypothesized that their ingenious “fire breath” was used as a defense against predatory reptiles.”

“As an anonymous wit is supposed to have put it: "Hydrogen is a light, odorless gas which, given enough time, changes into people.”

“Some scientists claim that hydrogen, because it is so plentiful, is the basic building block of the universe. I dispute that. I say there is more stupidity than hydrogen, and that is the basic building block of the universe.”