weight-on-bit control
21Drilling fluid — This article is about fluids used when drilling a well. For fluids used with drill bits during metal working, see cutting fluid. Driller pouring a foaming agent down the rod string on a drilling rig In geotechnical engineering, drilling fluid is… …
22horsemanship — /hawrs meuhn ship /, n. 1. the art, ability, skill, or manner of a horseman. 2. equitation. [1555 65; HORSEMAN + SHIP] * * * Art of training, riding, and handling horses. Good horsemanship requires that a rider control the animal s direction,… …
23Wikipedia:Featured article candidates — Here, we determine which articles are to be featured articles (FAs). FAs exemplify Wikipedia s very best work and satisfy the FA criteria. All editors are welcome to review nominations; please see the review FAQ. Before nominating an article,… …
24GX-9900 Gundam X — The GX 9900 Gundam X is a fictional mobile suit from the anime Gundam metaseries, specifically the After War Gundam X series After War timeline. GX 9900 Gundam X History In the anime series Gundam X, the GX 9900 Gundam X ( GX ) is one of three… …
25Insect wing — Original veins and wing posture of a dragonfly. Hoverflies hovering to mate …
26Drilling mud — In geotechnical engineering, drilling mud, also known as spud mud (when beginning the drilling process), is a drilling fluid used to drill boreholes into the earth. Often used while drilling oil and natural gas wells and on exploration drilling… …
27hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
28materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
29Jumping position — The jumping position is a position used by equestrians when jumping over an obstacle. It usually involves what is known as the forward seat or 2 point because the rider has 2 points in contact with the horse; the legs and hands. It was first… …
30Abkürzungen/Luftfahrt/B–D — Dies ist der zweite Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B (BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL …
