to have no ballast
21PROUT, SAMUEL — eminent English water colour artist, born at Plymouth; had from a child an irrepressible penchant for drawing, which, though discouraged at first by his father, was fostered by his schoolmaster; was patronised by Britton the antiquary, and… …
22National Invasive Species Act — The National Invasive Species Act (NISA) was sponsored by U.S. House Representative Steve LaTourette on September 28, 1996, and it became Public Law No. 104 332 (H.R. 4283) on October 26, 1996. The official purpose, as introduced, is: “To provide …
23Fluorescent lamp — A fluorescent lamp or fluorescent tube is a gas discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light.Unlike… …
24Permanent way — The permanent way means the physical elements of the railway line itself: generally the pairs of rails typically laid on sleepers embedded in ballast, intended to carry the ordinary trains of a railway. This page describes British practice and… …
25railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …
26Lamp (electrical component) — A lamp is a replaceable component such as an incandescent light bulb, which is designed to produce light from electricity. These components usually have a base of ceramic, metal, glass or plastic, which makes an electrical connection in the… …
27Railroad tie — While wooden ties dominate North American railways, concrete is widely used in other parts of the world. A railroad tie/railway tie (North America), or railway sleeper (Europe) is a rectangular item used to support the rails in railroad tracks.… …
28Track (rail transport) — Permanent way redirects here. For other uses, see Permanent way (disambiguation). Twin rail tracks in a wooded area …
29Glider — Gliders or Sailplanes are heavier than air aircraft primarily intended for unpowered flight. See also gliding and motor gliders for more details. [cite web url = http://www.ssa.org/UsTeam/adobe%20pdf/pr%20pdf/BR%20Sailplanes%20V3%2004.pdf title …
30Headlamp — Headlight redirects here. For other uses, see Headlight (disambiguation). High Beams redirects here. For the urban legend also known by that name, see Killer in the backseat. A motor scooter s front with an impractical number and variety of… …
