User:Sg647112c/Decihelen

From Wikipedia, the free encyclopedia

The helen (symbol: Hn) is the fundamental unit of beauty or physical attractiveness in the International System of Units (the SI). It named after Helen from Greek mythology; who has been taken for centuries as the most beautiful woman who ever lived, she was famously described by the English playwright Christopher Marlowe as having "the face that launched a thousand ships."

As with all SI units whose names are derived from the proper name of a person, the first letter of its symbol is uppercase (Hn). When an SI unit is spelled out in English, it should always begin with a lowercase letter (helen), except for at the beginning of a sentence or in capitalized material such as a title.

decihelen (symbol: dHn)

Something that scores perfectly is "a perfect ten". A person who is attractive and physically flawless is often said to be "a ten", from the idea of ranking that person's appearance and sex-appeal on a 1-to-10 scale. For example, in the movie 10 Bo Derek is supposedly a "10" on that scale.