XiXi (upper case Ξ, lower case ξ) is the 14th letter of the Greek alphabet. In the system of Greek numerals it has a value of 60. The upper-case letter Ξ is used as symbol for:\n* The 'cascade particles' in particle physics. |
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"Tragedy is when I cut my finger. Comedy is when you walk into an open sewer and die." - Mel Brooks |
