malodobry

23 skidoo

23 skidoo (sometimes 23 skiddoo) is an American slang phrase generally referring to leaving quickly, being forced to leave quickly by someone else, or taking advantage of a propitious opportunity to leave. Popularized during the early 20th century, the exact origin of the phrase is uncertain. 23 skidoo has been described as "perhaps the first truly national fad expression and one of the most popular fad expressions to appear in the US", to the extent that "Pennants and arm-bands at shore resorts, parks, and county fairs bore either [23] or the word 'Skiddoo'." "23 skidoo" combines two earlier expressions, "twenty-three" (1899) and "skidoo" (1901), both of which, independently and separately, referred to leaving, being kicked out, or the end of something. "23 skidoo" quickly became a popular catchphrase after its appearance in early 1906. "23 skidoo" has been often used...

Mamy problem – czyli jak CA “generował” klucze na podstawie XKCD

Czy rzut kostką jest losowy? W dużym przybliżeniu ludzkość uznała ten deterministyczny układ chaotyczny za wystarczająco nieprzewidywalny, aby wykorzystać go w różnego rodzaju grach “losowych”. Jednak na poziomie mechaniki klasycznej, ciężko upatrywać tam prawdziwej losowości. Raczej dużą czułość na warunki początkowe i błąd pomiaru. W przypadku kryptografii, jeden rzut zwykłą...