Quick Answer. The abbreviation mcg stands for micrograms in medical dosages and is sometimes mistaken for the abbreviation for milligrams, or mg.. One microgram equals one one-thousandth of a milligram, states the U.S. Food and Drug Administration. Continue Reading.
If you are in North or South America there are 38, but if you're anywhere else, there are 37. They run from 0 to 36 inclusive, but in America there is the inclusion of the double zero, which we'll get to later. Interestingly, all the numbers on a roulette wheel add up to 666, leading to the nickname The Devil's Game.
Millions of otherwise rational people are terrified of the number 13, to the extent that hotels omit it from their floors, airplanes do not have a row 13, and the numbers for Formula 1 racing cars skip from 12 to 14 so that, for example, 22 cars would be numbered from 1 to 23.