beam-length ratio
101Spring (device) — Helical or coil springs designed for tension Compression sp …
102Fly system — Fly loft of the Theater Bielefeld in Germany A fly system, flying system or theatrical rigging system, is a system of lines (e.g. ropes), blocks (pulleys), counterweights and related devices within a theatre that enable a stage crew to quickly,… …
103light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics …
104Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
105Mass driver — For fictional mass drivers, see List of electromagnetic projectile devices in fiction. Artist s conception of a mass driver for lunar launch A mass driver or electromagnetic catapult is a proposed method of non rocket spacelaunch which would use… …
106Arch bridge — This article is about the structure type. For the bridge in Bellows Falls, Vermont, see Arch Bridge (Bellows Falls). Arch Bridge Double arch stone bridge, Japan Ancestor Clapper bridge Related …
107Lake freighter — Lake freighters, or Lakers, are cargo vessels that ply the Great Lakes. The most well known is the SS Edmund Fitzgerald , the latest major vessel to be wrecked on the Lakes. These vessels are traditionally called boats, not ships. In the mid 20th …
108Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
109Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… …
110Bulk carrier — The Sabrina I is a modern Handymax bulk carrier. Class overview Name: Freighter Subclasses …
