boring fluid
21Water well — Village pump redirects here. For information on Wikipedia project related discussions see Wikipedia:Village pump. Water well at the Wald monastery in Germany. A water well is an excavation or structure created in the ground by digging, driving,… …
22rotary drilling — Drilling a well by the rotation of a bit. A method frequently used in boring for oil. Boring is done by rotation of a bit attached to a steel pipe, which, when so used is called a drill stem. A smaller bore, called a rat hole, sometimes precedes …
23pipeline — /puyp luyn /, n., v., pipelined, pipelining. n. 1. a long tubular conduit or series of pipes, often underground, with pumps and valves for flow control, used to transport crude oil, natural gas, water, etc., esp. over great distances. 2. a route …
24bivalve — bivalvular /buy val vyeuh leuhr/, adj. /buy valv /, n. 1. Also called lamellibranch. Zool. any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. adj. 2.… …
25hymenopteran — /huy meuh nop teuhr euhn/, adj. 1. hymenopterous. n. 2. Also, hymenopter. a hymenopterous insect. [1875 80; HYMENOPTER + AN] * * * ▪ insect Introduction any member of the third largest and perhaps the most beneficial to humans of all insect… …
26eye disease — Introduction any of the diseases or disorders that affect the human eye (eye, human). This article briefly describes the more common diseases of the eye and its associated structures, the methods used in examination and diagnosis, and the… …
27locomotion — /loh keuh moh sheuhn/, n. the act or power of moving from place to place. [1640 50; see LOCOMOTIVE, MOTION] * * * Any of various animal movements that result in progression from one place to another. Locomotion is classified as either… …
28Speeds and feeds — A line drawing showing some basic concepts of speeds and feeds in the context of lathe work. The angular velocity of the workpiece (rev/min) is called the spindle speed by machinists. Its tangential linear equivalent at the tool cutter interface… …
29An Experimental Enquiry Concerning the Source of the Heat which is Excited by Friction — BackgroundRumford was an opponent of the caloric theory of heat which held that heat was a fluid that could be neither created nor destroyed. He had further developed the view that all gases and liquids were absolute non conductors of heat. His… …
30List of important publications in physics — Optics Book of Optics *Ibn al Haytham (Alhacen)Description: The Book of Optics (Arabic: Kitab al Manazir , Latin: De Aspectibus ) is a seven volume treatise on optics and physics, written by the Iraqi Arab Muslim scientist Ibn al Haytham… …
