inverted arc
31Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… …
32Johan Sebastiaan Ploem — Infobox Scientist name = Johan Sebastiaan Ploem image width = 200px birth date = birth date and age|1927|08|25 birth place = Sumatra, Indonesia nationality = Dutch field = Advanced Microscopy; Molecular Diagnostics; Digital Painting work… …
33mathematics — /math euh mat iks/, n. 1. (used with a sing. v.) the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically. 2. (used with a sing. or pl. v.) mathematical procedures,… …
34North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …
35Rainbow — For other uses, see Rainbow (disambiguation). Double rainbow and supernumerary rainbows on the inside of the primary arc. The shadow of the photographer s head on the bottom marks the centre of the rainbow circle (antisolar point). A rainbow is… …
36Kazuki Fuuchouin — nihongo|Kazuki Fuuchouin|風鳥院花月|Fūchōin Kazuki is a one of the major secondary characters in the manga / anime series GetBackers. In the original Japanese version, he s voiced by Soichiro Hoshi, while his childhood voice is done by Yumiko… …
37Wing configuration — For aircraft configurations in general, including fuselage, tail and powerplant configuration, see Aircraft. For rotary winged aircraft types, see Rotorcraft. For direct lift and compound or hybrid types, see Powered lift. Fixed wing aircraft,… …
38When I Grow Up (webcomic) — When I Grow Up is a webcomic written by Jeffrey Rowland, who is also known for his comics Wigu Adventures [Mike Meginnis] [Matt Willemain] and Overcompensating; both of these comics are still in production. When I Grow Up (also abbreviated as W.I …
39telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
40Angular diameter — The angular diameter or apparent size of an object as seen from a given position is the “visual diameter” of the object measured as an angle. In the vision sciences it is called the visual angle. The visual diameter is the diameter of the… …
