double-threaded screw
21Glossary of firefighting equipment — Note: This list is incomplete. You can help Wikipedia by [http://en.wikipedia.org/w/index.php?title=Glossary of firefighting equipment action=edit adding to it] . 0 9 * 1 3/4 inch hose: see attack hose * 2 1/2 inch hose: see attack hose , supply… …
22Piping and plumbing fittings — Fittings are used in pipe and plumbing systems to connect straight pipe or tubing sections, to adapt to different sizes or shapes, and to regulate fluid flow, for example. Fittings, especially noncommon types, can be expensive, and require time,… …
23literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …
24railroad — /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… …
25Glossary of climbing terms — This page describes terms and jargon related to climbing and mountaineering. Contents: Top · 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A …
26Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …
27Ice climbing — Ice climbing, as the term indicates, is the activity of ascending inclined ice formations. Usually, ice climbing refers to roped and protected climbing of features such as icefalls, frozen waterfalls, and cliffs and rock slabs covered with ice… …
28USS Ashuelot (1865) — USS Ashuelot was an iron hulled, double ended, side wheel gunboat in the United States Navy. She was named for a river in New Hampshire. The contract for the construction of Ashuelot was awarded in June or July 1863 to Donald McKay. Her keel was… …
29Earring — Infobox Piercing name = Earring nicknames = image size = 200px image capt = 1) Helix/Cartilage, 2) Industrial, 3) Rook, 4) Daith, 5) Tragus, 6) Snug, 7) Conch, 8) Anti Tragus, 9) Lobe location = Ear jewelry = Captive bead ring, barbell, circular… …
30Musket — Muskets and bayonets aboard the frigate Grand Turk. A musket is a muzzle loaded, smooth bore long gun, fired from the shoulder. Muskets were designed for use by infantry. A soldier armed with a musket had the designation musketman or musketeer.… …
