random-failure period
21English literature — Introduction the body of written works produced in the English language by inhabitants of the British Isles (including Ireland) from the 7th century to the present day. The major literatures written in English outside the British Isles are… …
22Existence (Philosophy of) 2 — Philosophy of existence 2 Sartre Thomas R.Flynn Born 21 June 1905, in Thiviers (Dordogne), Jean Paul Sartre was raised in the Parisian home of his widowed mother’s parents. After his mother’s remarriage, he spent several years with her and his… …
23Japanese cryptology from the 1500s to Meiji — The cipher system that Uesugi used is basically a simple substitution usually known as a Polybius square or “checkerboard.” The i ro ha alphabet contains forty eight letters, so a seven by seven square is used, with one of the cells left blank.… …
24Law, Crime, and Law Enforcement — ▪ 2006 Introduction Trials of former heads of state, U.S. Supreme Court rulings on eminent domain and the death penalty, and high profile cases against former executives of large corporations were leading legal and criminal issues in 2005.… …
25Fertility awareness — Background Birth control type Behavioral First use 1950s (mucus) mid 1930s (BBT) 1930 (Knaus Ogino) Ancient (ad hoc) Failure rates (first year) Perfect use Symptoms based: 1 3% Calendar based: 5 9% …
26Selective Service System — Agency overview Formed May 18, 1917 September 16, 1940 Headquarters Arlington County, Virginia, United States …
27Drug test — For other uses, see Drug testing (disambiguation). Drug test Diagnostics To minimize opportunities for tampering, a direct line of sight between the observer and the specimen bottle must be maintained during collection of a urine sample …
28Mars — This article is about the planet. For other uses, see Mars (disambiguation) …
29Opinion poll — An opinion poll, sometimes simply referred to as a poll is a survey of public opinion from a particular sample. Opinion polls are usually designed to represent the opinions of a population by conducting a series of questions and then… …
30Recall (memory) — Recollection redirects here. For other uses, see Recollection (disambiguation). Recall in memory refers to the retrieval of events or information from the past. Along with encoding and storage, it is one of the three core processes of memory.… …
