length-depth ratio
1Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …
2Focal length — The focal length of an optical system is a measure of how strongly it converges (focuses) or diverges (diffuses) light. A system with a shorter focal length has greater optical power than one with a long focal length. Thin lens approximation For… …
3thickness/chord ratio — The ratio between the maximum thickness or depth of an airfoil section and its chord length, expressed as a percentage of the chord length …
4river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
5Dal Lake — For the lake in Kangra district (Himachal Pradesh), see Dal Lake (Himachal Pradesh). Dal Lake डल झील Dal Lake and the shikaras Location Srinagar …
6Impulse excitation technique — PracticalThe impulse excitation technique is a nondestructive test method that uses natural frequency, dimensions and mass of a test piece to determine Young s modulus, Shear modulus, Poisson s ratio and damping coefficient.Dimensions and mass of …
7Lake Shikotsu — infobox lake lake name = Lake Shikotsu 支笏湖 image lake = Shikotsuko1.jpg caption lake = image bathymetry = caption bathymetry = coords = coord|42|48|N|141|21|E|region:JP type:waterbody|display=inline,title type = crater lake inflow = Bifue,… …
8Battle of the Little Bighorn — Coordinates: 45°33′54″N 107°25′44″W / 45.565°N 107.42889°W / 45.565; 107.42889 …
9Hyperfocal distance — In optics and photography, hyperfocal distance is a distance beyond which all objects can be brought into an acceptable focus. There are two commonly used definitions of hyperfocal distance , leading to values that differ only slightly:The first… …
10Gear — For the gear like device used to drive a roller chain, see Sprocket. This article is about mechanical gears. For other uses, see Gear (disambiguation). Two meshing gears transmitting rotational motion. Note that the smaller gear is rotating… …
