Information AboutUpsilon |
| CATEGORIES ABOUT UPSILON | |
| greek letters | |
| vowel letters | |
|
Upsilon (upper case , lower case ) is the 20th letter of the Greek Alphabet . In the system of Greek Numerals it has a value of 400. It is derived from the Phoenician Waw . In early Greek it was pronounced like "continental" ''u'' or English ''oo'', IPA . In Classical Greek , it was pronounced like French ''u'' or German ''ü'', IPA — a sound that is not found in most dialects of English . In Modern Greek it is pronounced like "continental" ''i'' or English ''ee'', IPA , and in dipthongs, . In ancient Greek it occurred in both long and short versions, but this distinction has been lost in Modern Greek. As an initial letter in Classical Greek it always carried the Rough Breathing (equivalent to ''h'') as reflected in the many Greek-derived English Words starting with ''hy''. Upsilon participated as the second element in Falling Diphthong s, which have subsequently developed in various ways: for instance after alpha or epsilon it is pronounced f or v. The Roman Emperor Claudius proposed introducing a New Letter into the Latin Alphabet to approximate the sound of upsilon, but in due course the letter Y was adopted instead. The name of the letter was originally just υ. It changed to "u psilon" ( Greek υ ψιλόν, meaning "simple u") to distinguish it from οι, which had come to have the same pronunciation. Four letters of the and Y and, much later, U and W . One letter of the Cyrillic Alphabet , У , arose from it. USAGE In Particle Physics the capital Greek letter denotes a Meson . Note that the symbol should always look like in order to avoid confusion with a Latin Y denoting the Hypercharge . |
|
|