Beer, as all alcoholic drinks, is made by fermentation caused by bacteria feeding on the yeast cells, then defecating. This bacterial excrement is called alcohol. Make mine a double. To obtain this level, however, they had to use a champagne yeast. Just in case you were thinking of driving.
Modern breathalyzers work on a clever electrochemical principle.
The subject's breath is passed over a platinum electrode, which causes the alcohol to bind with oxygen, forming acetic acid. In the process it loses two electrons, a process that sets up a current in a wire connected to the electrode. The higher the concentration of alcohol in the breath, the greater the electrical current, which can be read by a simple meter to indicate intoxication levels Party Animal. Attila the Hun was suspected of suffocating from a bloody nose after passing out from alcohol at his 'bachelor party'. Alcoholism in America Reno, Nevada has the highest rate of alcoholism in the U.S., Provo, Utah, the lowest.