auxiliary frame
31drawing — /draw ing/, n. 1. the act of a person or thing that draws. 2. a graphic representation by lines of an object or idea, as with a pencil; a delineation of form without reference to color. 3. a sketch, plan, or design, esp. one made with pen, pencil …
32Criticism of relativity theory — Criticism of Albert Einstein s theory of relativity was mainly expressed in the early years after its publication on a scientific, pseudoscientific, philosophical, or ideological basis. Reasons for criticism were, for example, alternative… …
33History of the Civil Air Patrol — Civil Air Patrol (CAP) is the civilian auxiliary of the United States Air Force (USAF). It was created on 1 December 1941 by , with Maj. Gen. John F. Curry as the first CAP national commander. The organization was originally formed to provide… …
34List of musical symbols — Modern musical symbols are the marks and symbols that are widely used in musical scores of all styles and instruments today. This is intended to be a comprehensive guide to the various symbols encountered in modern musical notation. Contents 1… …
35Surveyor 7 — Infobox Spacecraft Name=Surveyor 7 Caption=Surveyor model on Earth Organization=NASA Major Contractors= Hughes Aircraft Mission Type=Lander Satellite of= Moon Launch= January 7, 1968 at 06:30:00 UTC Launch Vehicle= Atlas Centaur Decay=Landed on… …
36Circle of confusion — For the closely related topic in microscopy, see Point spread function. In optics, a circle of confusion is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as… …
37History of special relativity — The History of special relativity consists of many theoretical and empirical results of physicists like Hendrik Lorentz and Henri Poincaré, which culminated in the theory of special relativity proposed by Albert Einstein, and subsequent work of… …
38Gauge fixing — Quantum field theory (Feynman diagram) …
39Dreadnought — For other uses, see Dreadnought (disambiguation). The oldest remaining dreadnought, USS Texas, was launched in 1912 and is now a museum ship. The dreadnought was the predominant type of 20th century battleship. The first of the kind, the… …
40Presidential Unit Citation (United States) — Presidential Unit Citation Army and Air Force P.U.C …
