attainable
51Enthalpy — Thermodynamics …
52Four Freedoms — The Four Freedoms are goals famously articulated by United States President Franklin D. Roosevelt in the State of the Union Address he delivered to the United States Congress. In an address also known as the Four Freedoms speech, FDR proposed… …
53Holy Hand Grenade of Antioch — The Holy Hand Grenade of Antioch is a fictional weapon from the comedy film Monty Python and the Holy Grail . It bears a striking resemblance to the Sovereign s Orb of the United Kingdom, and seems to draw some inspiration from the Holy Spear of… …
54Letterboxing — is an outdoor hobby that combines elements of orienteering, art and puzzle solving. Letterboxers hide small, weatherproof boxes in publicly accessible places (like parks) and distribute clues to finding the box in printed catalogs, on one of… …
55Boiling — (also called ebullition), a type of phase transition, is the rapid vaporization of a liquid, which typically occurs when a liquid is heated to its boiling point, the temperature at which the vapor pressure of the liquid is equal to the pressure… …
56Busy beaver — In computability theory, a busy beaver (from the colloquial expression for an industrious person) is a Turing machine that attains the maximum operational busyness (such as measured by the number of steps performed, or the number of nonblank… …
57Military strategy — This article is about real and historical warfare. For the computer game genre, see Real time tactics. Warfare Military history Eras Prehistoric …
58Advanced Level (UK) — The A level , short for Advanced Level, is a General Certificate of Education qualification in England, Northern Ireland and Wales, usually taken by students during the optional final two years of secondary school (years 12 13, usually ages 16… …
59Woofer — This article is about a loudspeaker driver. For individuals trained in remote first aid, see Wilderness First Responder. Woofer is the term commonly used for a loudspeaker driver designed to produce low frequency sounds, typically from around 40… …
60Thomas Hill Green — For the actor Thomas Hill, see Thomas Hill .Thomas Hill Green (April 7, 1836 – March 26, 1882) was an English philosopher, political radical and temperance reformer, and a member of the British idealism movement. Like all the British idealists,… …
