liquid receiver
21History of the telephone — The history of the telephone chronicles the development of electrical technology that enabled bidirectional human speech conversations over distances farther than a person could shout.Telephone prehistoryMechanical devicesBefore the invention of… …
22Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
23Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …
24Goniometer — For other uses, see Goniometer (disambiguation). Goniometer made by Develey le Jeune in Lausanne, late 18th–early 19th century …
25Ittar — or Attar or itr is a natural perfumes extracted from the juices of flowers like the jasmine, rose or sandal, herbs, spices, barks in to base oil such as Sandalwood oil. Sandalwood oil is used as base in making Attar while western perfumes, are… …
26materials testing — Introduction measurement of the characteristics and behaviour of such substances as metals, ceramics, or plastics under various conditions. The data thus obtained can be used in specifying the suitability of materials for various… …
27Cryogenic nitrogen plant — Nitrogen, as an element of great technical importance, can be produced in a cryogenic nitrogen plant with a purity of more than 99.9999%. Air inside a distillation column is separated at cryogenic temperatures (about 100K/ 173°C) to produce high… …
28Cryogenic oxygen plant — A cryogenic oxygen plant is an industrial facility that creates molecular oxygen at relatively high purity. Oxygen is the most common element in the world and the second largest industrial gas. The purity of oxygen can only be generated by… …
29Huygens probe — Infobox Spacecraft Name = Huygens probe Caption = A scale replica of the probe, 1.3 metres across. Organization = ESA/ASI/NASA Major Contractors = Aérospatiale, now Thales Alenia Space Mission Type = Lander Satellite Of = Saturn Launch = December …
30Accurizing — is the process of improving the accuracy of a firearm or airgun.cite web |url=http://saami.org/Glossary/index.cfm |title=SAAMI glossary |accessdate=2007 08 30] For firearms, accuracy is defined as the ability to hit exactly what you re aiming at …
