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Index Micrometer

A micrometer, sometimes known as a micrometer screw gauge, is a device incorporating a calibrated screw widely used for precise measurement of components in mechanical engineering and machining as well as most mechanical trades, along with other metrological instruments such as dial, vernier, and digital calipers. [1]

230 relations: Actinoplanes utahensis, Agaricus macrosporus, Agaricus pocillator, Agaricus semotus, Air shower (room), Akari (satellite), Allantocystis dasyhelei, Alpaca fiber, Alpha Centauri, Amanita cokeri, Amanita parcivolvata, Appianoporites, Archaeorhizomyces finlayi, Argentodites, Asteroid, Astraeus hygrometricus, Atomic line filter, Attenuation, Austroboletus rarus, Auxanometer, BaBar experiment, Beta Pictoris, Betelgeuse, Biały Słoń, Boletus vermiculosus, Bolt thrust, Bore gauge, Bovista dermoxantha, Bovista plumbea, Bowers Group, Brown & Sharpe, Brown dwarf, Burt Munro, CAD/CAM dentistry, Calipers, Carbon fibers, Chris Harrison (photographer), Christian Carl André, Cortinarius badiolaevis, Cortinarius vanduzerensis, Corynebacterium, Crescograph, Crookes radiometer, Damiaen Joan van Doorninck, Diameter, Differential screw, Dispersion (chemistry), Dissolved organic carbon, Dividing engine, Double seam, ..., Douglas Dragonfly, Dynameter, Electromagnetic absorption by water, Electronic paper, Enhanced permeability and retention effect, Ercole Dembowski, Exploration of Io, Filar micrometer, Flick (physics), Fossil, Frost heaving, Gauge (instrument), Gauge block, Geastrum pectinatum, Gottfried Kirch, Granulocyte, Guepinia, Gustav Müller, Hang Lu, Haugh unit, Hausera, Heliometer, Helium hydride ion, Henry Maudslay, Histomonas meleagridis, History of the telescope, Holographic Versatile Disc, Hook gauge evaporimeter, HTC U12+, Hybrid material, Hydnum repandum, Impact winter, Inocybe lacera, Inspection, Interchangeable parts, Interplanetary dust cloud, Ion track, IPhone 4, IPS panel, Jean Picard, Jig borer, John Barton (engineer), John Edson Sweet, Jovilabe, Kikiki, L. S. Starrett Company, Lamellar corpuscle, Laser drilling, LASIK, Least count, Lewis Morris Rutherfurd, Linear actuator, Linear energy transfer, Linear stage, List of British innovations and discoveries, List of English inventions and discoveries, List of inventors, List of iOS devices, List of length, distance, or range measuring devices, List of measuring devices, List of metalworking occupations, List of Polish inventors and discoverers, Lithium cobalt oxide, Louis-Guillaume Perreaux, Machinist, Macroscopic scale, Magnetic spin vortex disc, Magnetic storage, Manhattan Beach (novel), Mansonella perstans, Margaretbarromyces, Mauser, Meridian circle, Messier 58, Meteoroid, MIC, Microbotryum silenes-dioicae, Micrometre, Middleton, Leeds, Mike (disambiguation), Milnesium berladnicorum, Miniature Exoplanet Radial Velocity Array, Minimum efficiency reporting value, Mirror mount, Mitutoyo, Mixture, Mohs surgery, Moiré pattern, Mollicutes, Montmorillonite, Mu3e, Mycobacterium phlei, Nanonetwork, Nanothermometry, National HRO, Neyco, Nimbus 4, Numerical control, Observational astronomy, Optical dilatometer, Optomechanics, Orthokeratology, Osteoblast, Particle counter, Patch clamp, Pentium III, Phagocyte, Pholiota flammans, Polycrystalline silicon, Ponytail, Postage stamp paper, Precipitation, Prefix, Psilocybe tampanensis, Psilocybe yungensis, Quatsinoporites, Railroad chronometer, Red rain in Kerala, Reference point indentation, Richard Towneley, Ring gauge, Robert-Aglaé Cauchoix, Roger Joseph Boscovich, Russula paludosa, Scientific instrument, Screw, Screw (simple machine), Screw thread, Semiconductor consolidation, Sidney Horstmann, SLinCA@Home, Snap gage, Snow, Snowflake, Sodium hypochlorite, Solarmer Energy, Inc., Sparkling wine, Spherometer, Spongiforma squarepantsii, Star-nosed mole, Stephen Hopkins (politician), Stopping power (particle radiation), Strike (1925 film), STS-3, Surface roughness, Synthetic diamond, Telemeter, The Churchill Machine Tool Company, Thermal expansion, Thickening agent, Thousandth of an inch, Threading (manufacturing), Timeline of London, TMI Group of Companies, Torque wrench, Transit of Venus, 1639, Transparency and translucency, Transversal (instrument making), Trueperella pyogenes, Type 97 81 mm infantry mortar, UScoCTIO 108, VéloSoleX, Vein (geology), Venera 9, Vernier scale, Vibrio cyclitrophicus, Volkert Simon Maarten van der Willigen, Webley & Scott, What the Stuarts Did for Us, Will Hay, Willem Hendrik van den Bos, William Gascoigne (scientist), William Sadler Franks, WISE 0458+6434, Yoon Kyung-byung, Zenith telescope, Zinc sulfide, 1640 in science, 1984 Romeoville petroleum refinery disaster, 3D printing. Expand index (180 more) »

Actinoplanes utahensis

Actinoplanes utahensis is a bacteria and is a source of the drug acarbose (an alpha-glucosidase inhibtor) used in the treatment of diabetes mellitus.

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Agaricus macrosporus

Agaricus macrosporus is a rare, edible mushroom found from June at wood fringes and in meadows.

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Agaricus pocillator

Agaricus pocillator, a woodland mushroom, is distributed through southeastern North America in ranges at least as far north as Illinois.

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Agaricus semotus

Agaricus semotus is a woodland mushroom of the fungus order Agaricales.

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Air shower (room)

Air showers are specialized enclosed antechambers which are incorporated as entryways of cleanrooms and other controlled environments to reduce particle contamination.

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Akari (satellite)

Akari (ASTRO-F) is an infrared astronomy satellite developed by Japan Aerospace Exploration Agency, in cooperation with institutes of Europe and Korea.

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Allantocystis dasyhelei

Allantocystis dasyhelei is a gregarine parasite of the larval biting midge Dasyhelea obscura.

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Alpaca fiber

Alpaca fleece is the natural fiber harvested from an alpaca.

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Alpha Centauri

Alpha Centauri (α Centauri, abbreviated Alf Cen or α Cen) is the star system closest to the Solar System, being from the Sun.

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Amanita cokeri

Amanita cokeri, commonly known as Coker's Amanita and Solitary Lepidella, is a mushroom in the Amanitaceae family.

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Amanita parcivolvata

Amanita parcivolvata is a fungus that produces fruit bodies that vaguely resemble those of Amanita muscaria.

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Appianoporites is an extinct monotypic genus of fungus in the Agaricomycetes family Hymenochaetaceae.

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Archaeorhizomyces finlayi

Archaeorhizomyces finlayi is a species of fungi in the class Archaeorhizomycetes and the type species.

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Argentodites is a possible multituberculate mammal from the Cretaceous of Argentina.

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Asteroids are minor planets, especially those of the inner Solar System.

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Astraeus hygrometricus

Astraeus hygrometricus, commonly known as the hygroscopic earthstar, the barometer earthstar, or the false earthstar, is a species of fungus in the family Diplocystaceae.

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Atomic line filter

An atomic line filter (ALF) is an advanced optical band-pass filter used in the physical sciences for filtering electromagnetic radiation with precision, accuracy, and minimal signal strength loss.

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In physics, attenuation or, in some contexts, extinction is the gradual loss of flux intensity through a medium.

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Austroboletus rarus

Austroboletus rarus is a species of bolete fungus in the family Boletaceae.

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An auxanometer (Gr. auxain.

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BaBar experiment

The BaBar experiment, or simply BaBar, is an international collaboration of more than 500 physicists and engineers studying the subatomic world at energies of approximately ten times the rest mass of a proton (~10 GeV).

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Beta Pictoris

Beta Pictoris (β Pic, β Pictoris) is the second brightest star in the constellation Pictor.

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Betelgeuse, also designated Alpha Orionis (α Orionis, abbreviated Alpha Ori, α Ori), is the ninth-brightest star in the night sky and second-brightest in the constellation of Orion.

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Biały Słoń

Biały Słoń (English: White Elephant; Ukrainian: Білий слон, Bily slon) is a Polish name for an abandoned campus of the former Polish Astronomical and Meteorological Observatory of Warsaw University, located at remote area on the peak of Pip Ivan in the Chornohora range of the Carpathian Mountains, Ukraine.

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Boletus vermiculosus

Boletus vermiculosus is a species of bolete fungus in the family Boletaceae.

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Bolt thrust

Bolt thrust or breech pressure is a term used in internal ballistics and firearms (whether small arms or artillery) that describes the amount of rearward force exerted by the propellant gases on the bolt or breech of a firearm action or breech when a projectile is fired.

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Bore gauge

A bore gauge is a collective term for the tools that are unique to the process of accurately measuring holes.

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Bovista dermoxantha

Bovista dermoxantha is a small, white, nearly round puffball, recognized when young by a cottony-felty outer surface that becomes inconspicuously warted, eventually leaving fine, pallid, scales on an ochre to brown endoperidium.

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Bovista plumbea

Bovista plumbea, also referred to as the paltry puffball, is a small puffball mushroom commonly found in Western Europe and California, white when young and greyish in age.

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Bowers Group

Bowers Group founded in 1915 manufacture Test equipment and Measuring instruments.

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Brown & Sharpe

Brown & Sharpe is a division of Hexagon AB, a Swedish multinational corporation focused mainly on metrological tools and technology.

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Brown dwarf

Brown dwarfs are substellar objects that occupy the mass range between the heaviest gas giant planets and the lightest stars, having masses between approximately 13 to 75–80 times that of Jupiter, or approximately to about.

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Burt Munro

Herbert James "Burt" Munro (Bert in his youth; 25 March 1899 – 6 January 1978) was a New Zealand motorcycle racer, famous for setting an under-1,000 cc world record, at Bonneville, 26 August 1967.

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CAD/CAM dentistry

CAD/CAM dentistry is a field of dentistry and prosthodontics using CAD/CAM (computer-aided design and computer-aided manufacturing) to improve the design and creation of dental restorations, especially dental prostheses, including crowns, crown lays, veneers, inlays and onlays, fixed bridges, dental implant restorations, dentures (removable or fixed), and orthodontic appliances.

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A caliper (British spelling also calliper, or in plurale tantum sense a pair of calipers) is a device used to measure the distance between two opposite sides of an object.

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Carbon fibers

Carbon fibers or carbon fibres (alternatively CF, graphite fiber or graphite fibre) are fibers about 5–10 micrometers in diameter and composed mostly of carbon atoms.

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Chris Harrison (photographer)

Chris Harrison (Christopher Matthew Harrison, born Jarrow 1967) is an English photographer known for his work "which has explored ideas of home, histories and class".

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Christian Carl André

Christian Carl André (1763-1831) was a leading 19th century European natural scientist, publisher, economist and educator.

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Cortinarius badiolaevis

Cortinarius badiolaevis is a fungus in the family Cortinariaceae.

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Cortinarius vanduzerensis

Cortinarius vanduzerensis is a species of mushroom in the family Cortinariaceae.

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Corynebacterium is a genus of bacteria that are Gram-positive and aerobic.

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A crescograph is a device for measuring the growth in plants.

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Crookes radiometer

The Crookes radiometer, also known as a light mill, consists of an airtight glass bulb, containing a partial vacuum.

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Damiaen Joan van Doorninck

Damiaen J. van Doorninck (29 August 1902 Vught - 24 September 1987, Mynachlog-ddu) was a Dutch officer (lieutenant commander in the Royal Netherlands Navy Reserve) and a POW in Colditz.

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In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.

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Differential screw

A differential screw is a mechanism used for making small, precise adjustments to the spacing between two objects (such as in focusing a microscope, moving the anvils of a micrometer, or positioning optics).

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Dispersion (chemistry)

A dispersion is a system in which particles are dispersed in a continuous phase of a different composition (or state).

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Dissolved organic carbon

Dissolved organic carbon (DOC), sometimes known as dissolved organic material (DOM), is a broad classification for organic molecules of varied origin and composition within aquatic systems.

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Dividing engine

A dividing engine is a device employed to mark graduations on measuring instruments to allow for reading smaller measurements than can be allowed by directly engraving them.

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Double seam

A double seam is a canning process for sealing a tin can by mechanically interlocking the can body and a can end (or lid).

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Douglas Dragonfly

The Douglas Dragonfly is a motorcycle designed and built by Douglas motorcycles in Bristol.

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A dynameter is an instrument that measures the magnification of a telescope.

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Electromagnetic absorption by water

The absorption of electromagnetic radiation by water depends on the state of the water.

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Electronic paper

Electronic paper and e-paper are display devices that mimic the appearance of ordinary ink on paper.

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Enhanced permeability and retention effect

The enhanced permeability and retention (EPR) effect is a controversial concept by which molecules of certain sizes (typically liposomes, nanoparticles, and macromolecular drugs) tend to accumulate in tumor tissue much more than they do in normal tissues.

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Ercole Dembowski

Ercole (Hercules) Dembowski (12 January 1812 – 19 January 1881) was an Italian astronomer.

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Exploration of Io

The exploration of Io, Jupiter's third-largest moon, began with its discovery in 1610 and continues today with Earth-based observations and visits by spacecraft to the Jupiter system.

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Filar micrometer

A filar micrometer is a specialized eyepiece used in astronomical telescopes for astrometry measurements, in microscopes for specimen measurements, and in alignment and surveying telescopes for measuring angles and distances on nearby objects.

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Flick (physics)

In optical engineering and telecommunications engineering, the flick is a unit of spectral radiance.

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A fossil (from Classical Latin fossilis; literally, "obtained by digging") is any preserved remains, impression, or trace of any once-living thing from a past geological age.

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Frost heaving

Frost heaving (or a frost heave) is an upwards swelling of soil during freezing conditions caused by an increasing presence of ice as it grows towards the surface, upwards from the depth in the soil where freezing temperatures have penetrated into the soil (the freezing front or freezing boundary).

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Gauge (instrument)

A gauge or gage, in science and engineering, is a device used to make measurements or in order to display certain dimensional information.

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Gauge block

Gauge blocks (also known as gage blocks, Johansson gauges, slip gauges, or Jo blocks) are a system for producing precision lengths.

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Geastrum pectinatum

Geastrum pectinatum is an inedible species of mushroom belonging to the earthstar family of fungi.

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Gottfried Kirch

Gottfried Kirch (Kirche, Kirkius) (December 18, 1639 – July 25, 1710) was a German astronomer and the first 'Astronomer Royal' in Berlin and, as such, director of the nascent Berlin Observatory.

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Granulocytes are a category of white blood cells characterized by the presence of granules in their cytoplasm.

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Guepinia is a genus of fungus in the Auriculariales order.

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Gustav Müller

Karl Hermann Gustav Müller (May 7, 1851–July 7, 1925) was a German astronomer.

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Hang Lu

Hang Lu (born 1977) is the "Love Family" Professor of Chemical and Biomolecular Engineering at the Georgia Institute of Technology.

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Haugh unit

The Haugh unit is a measure of egg protein quality based on the height of its egg white (albumen).

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Hausera is a subterranean genus of planarian from Brazil.

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A heliometer (from Greek ἥλιος hḗlios "sun" and measure) is an instrument originally designed for measuring the variation of the sun's diameter at different seasons of the year, but applied now to the modern form of the instrument which is capable of much wider use.

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Helium hydride ion

The hydrohelium(1+) cation, HeH+, also known as the helium hydride ion or helium-hydride molecular ion, is a positively charged ion formed by the reaction of a proton with a helium atom in the gas phase, first produced in the laboratory in 1925.

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Henry Maudslay

Henry Maudslay (pronunciation and spelling) (22 August 1771 – 14 February 1831) was a British machine tool innovator, tool and die maker, and inventor.

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Histomonas meleagridis

Histomonas meleagridis is species of parasitic protozoan that infects a wide range of birds including chickens, turkeys, peafowl, quail and pheasants, causing infectious enterohepatitis, or histomoniasis (blackhead dieases).

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History of the telescope

The earliest known telescope appeared in 1608 in the Netherlands when an eyeglass maker named Hans Lippershey tried to obtain a patent on one.

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Holographic Versatile Disc

The Holographic Versatile Disc (HVD) is an optical disc technology developed between April 2004 and mid-2008 that can store up to several terabytes of data on an optical disc 10 cm or 12 cm in diameter.

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Hook gauge evaporimeter

A Hook gauge evaporimeter is a precision instrument used to measure changes in water levels due to evaporation.

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HTC U12+

The HTC U12+ is an Android smartphone manufactured and sold by HTC as part of the HTC U series.

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Hybrid material

Hybrid materials are composites consisting of two constituents at the nanometer or molecular level.

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Hydnum repandum

Hydnum repandum, commonly known as the sweet tooth, wood hedgehog or hedgehog mushroom, is a basidiomycete fungus of the family Hydnaceae.

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Impact winter

An impact winter is a hypothesized period of prolonged cold weather due to the impact of a large asteroid or comet on the Earth's surface.

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Inocybe lacera

Inocybe lacera (commonly known as the torn fibrecap) is a poisonous species of mushroom in the genus Inocybe.

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An inspection is, most generally, an organized examination or formal evaluation exercise.

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Interchangeable parts

Interchangeable parts are parts (components) that are, for practical purposes, identical.

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Interplanetary dust cloud

The interplanetary dust cloud, or zodiacal cloud, consists of cosmic dust (small particles floating in outer space) that pervades the space between planets in the Solar System and other planetary systems.

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Ion track

Ion tracks are damage-trails created by swift heavy ions penetrating through solids, which may be sufficiently-contiguous for chemical etching in a variety of crystalline, glassy, and/or polymeric solids.

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IPhone 4

The iPhone 4 is a smartphone that was designed and marketed by Apple Inc. Following a number of notable leaks, the iPhone 4 was first unveiled on June 7, 2010, at Apple's Worldwide Developers Conference in San Francisco, and was released on June 24, 2010, in the United States, United Kingdom, France, Germany and Japan.

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IPS panel

IPS (in-plane switching) is a screen technology for liquid-crystal displays (LCDs).

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Jean Picard

Jean-Félix Picard (21 July 1620 – 12 July 1682) was a French astronomer and priest born in La Flèche, where he studied at the Jesuit Collège Royal Henry-Le-Grand.

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Jig borer

The jig borer is a type of machine tool invented at the end of World War I to make possible the location of hole centers quickly and precisely.

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John Barton (engineer)

Sir John Barton (5 August 1771 – 25 August 1834) was an English engineer.

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John Edson Sweet

John Edson Sweet (Pompey, New York, October 21, 1832 – Syracuse, New York, May 8, 1916) was an American mechanical engineer, inventor, professor, business man and president of the American Society of Mechanical Engineers in 1884-85.

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The jovilabe is a brass scientific instrument, undated and of unknown maker.

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Kikiki is a genus of fairyfly wasps containing a single species, Kikiki huna, known from Hawaii, Costa Rica, and Trinidad.

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L. S. Starrett Company


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Lamellar corpuscle

Lamellar corpuscles, or Pacinian corpuscles, are one of the four major types of mechanoreceptor cell in glabrous (hairless) mammalian skin.

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Laser drilling

Laser drilling is the process of creating thru-holes, referred to as “popped” holes or “percussion drilled” holes, by repeatedly pulsing focused laser energy on a material.

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LASIK or Lasik (laser-assisted in situ keratomileusis), commonly referred to as laser eye surgery or laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and astigmatism.

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Least count

In metrology, the least count of a measuring instrument is the smallest change in the measured quantity that can be resolved on the instrument's scale.

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Lewis Morris Rutherfurd

Lewis Morris Rutherfurd (November 25, 1816 – May 30, 1892) was an American lawyer and astronomer, and a pioneering astrophotographer.

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Linear actuator

A linear actuator is an actuator that creates motion in a straight line, in contrast to the circular motion of a conventional electric motor.

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Linear energy transfer

In dosimetry, linear energy transfer (LET) is the amount of energy that an ionizing particle transfers to the material traversed per unit distance.

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Linear stage

A linear stage or translation stage is a component of a precise motion system used to restrict an object to a single axis of motion.

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List of British innovations and discoveries

The following is a list and timeline of innovations as well as inventions and discoveries that involved British people or the United Kingdom including predecessor states in the history of the formation of the United Kingdom.

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List of English inventions and discoveries

English inventions and discoveries are objects, processes or techniques invented, innovated or discovered, partially or entirely, in England by a person from England (that is, someone born in England - including to non-English parents - or born abroad with at least one English parent and who had the majority of their education or career in England).

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List of inventors

This is a list of notable inventors.

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List of iOS devices

This is a list and comparison of devices designed and marketed by Apple Inc. that run a Unix-like operating system named iOS, often colloquially referred to simply as iDevices.

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List of length, distance, or range measuring devices

There are several devices to measure a length, distance, or range.

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List of measuring devices

No description.

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List of metalworking occupations

Metalworking occupations include.

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List of Polish inventors and discoverers

This is a list of Polish inventors and discoverers.

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Lithium cobalt oxide

Lithium cobalt oxide, sometimes called lithium cobaltateA.

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Louis-Guillaume Perreaux

Louis-Guillaume Perreaux (19 February 1816 – 5 April 1889) was a French inventor and engineer who submitted one of the first patents for a working motorcycle in 1869.

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A machinist is a person who machines using hand tools and machine tools to prototype, fabricate or make modifications to a part that is made of metal, plastics, or wood.

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Macroscopic scale

The macroscopic scale is the length scale on which objects or phenomena are large enough to be visible almost practically with the naked eye, without magnifying optical instruments.

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Magnetic spin vortex disc

Magnetic material synthesis and characterization technology continue to improve, allowing for the production of various shapes, sizes, and compositions of magnetic material to be studied and tuned for improved properties.

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Magnetic storage

Magnetic storage or magnetic recording is the storage of data on a magnetized medium.

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Manhattan Beach (novel)

Manhattan Beach is a historical novel by American writer Jennifer Egan.

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Mansonella perstans

Mansonella perstans is a vector-borne human filarial nematode, transmitted by tiny blood-sucking flies called midges.

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Margaretbarromyces is an extinct monotypic genus of pleosporale fungus of uncertain family placement.

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Mauser, begun as Königliche Waffen Schmieden, is a German arms manufacturer.

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Meridian circle

The meridian circle is an instrument for timing of the passage of stars across the local meridian, an event known as a culmination, while at the same time measuring their angular distance from the nadir.

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Messier 58

Messier 58 (also known as M58 and NGC 4579) is an intermediate barred spiral galaxy with a weak inner ring structure located within the constellation Virgo, approximately 68 million light-years away from Earth.

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A meteoroid is a small rocky or metallic body in outer space.

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Mic or MIC may refer to.

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Microbotryum silenes-dioicae

Microbotryum silenes-dioicae is a species of fungus first isolated from Brittany, France.

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The micrometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equaling (SI standard prefix "micro-".

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Middleton, Leeds

Middleton is a largely residential suburb of Leeds in West Yorkshire, England and historically a village in the West Riding of Yorkshire.

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Mike (disambiguation)

Mike is a personal given name.

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Milnesium berladnicorum

Milnesium berladnicorum is a species of Eutardigrade in the family Milnesiidae, native to Bârlad, Romania.

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Miniature Exoplanet Radial Velocity Array

The MINiature Exoplanet Radial Velocity Array (MINERVA) is a ground-based robotic dedicated exoplanet observatory.

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Minimum efficiency reporting value

Minimum efficiency reporting value, commonly known as MERV rating, is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters.

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Mirror mount

A mirror mount is a device that holds a mirror.

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is a Japanese multinational corporation specializing in measuring instruments and metrological technology, headquartered at Takatsu-ku, Kawasaki, Kanagawa.

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In chemistry, a mixture is a material made up of two or more different substances which are mixed.

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Mohs surgery

Mohs surgery, developed in 1938 by a general surgeon, Frederic E. Mohs, is microscopically controlled surgery used to treat common types of skin cancer.

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Moiré pattern

In mathematics, physics, and art, a moiré pattern or moiré fringes are large-scale interference patterns that can be produced when an opaque ruled pattern with transparent gaps is overlaid on another similar pattern.

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Mollicutes is a class of bacteria distinguished by the absence of a cell wall.

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Montmorillonite is a very soft phyllosilicate group of minerals that form when they precipitate from water solution as microscopic crystals, known as clay. It is named after Montmorillon in France. Montmorillonite, a member of the smectite group, is a 2:1 clay, meaning that it has two tetrahedral sheets of silica sandwiching a central octahedral sheet of alumina. The particles are plate-shaped with an average diameter around 1 μm and a thickness of 9.6 nm; magnification of about 25,000 times, using an electron microscope, is required to "see" individual clay particles. Members of this group include saponite. Montmorillonite is a subclass of smectite, a 2:1 phyllosilicate mineral characterized as having greater than 50% octahedral charge; its cation exchange capacity is due to isomorphous substitution of Mg for Al in the central alumina plane. The substitution of lower valence cations in such instances leaves the nearby oxygen atoms with a net negative charge that can attract cations. In contrast, beidellite is smectite with greater than 50% tetrahedral charge originating from isomorphous substitution of Al for Si in the silica sheet. The individual crystals of montmorillonite clay are not tightly bound hence water can intervene, causing the clay to swell. The water content of montmorillonite is variable and it increases greatly in volume when it absorbs water. Chemically, it is hydrated sodium calcium aluminium magnesium silicate hydroxide (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2·nH2O. Potassium, iron, and other cations are common substitutes, and the exact ratio of cations varies with source. It often occurs intermixed with chlorite, muscovite, illite, cookeite, and kaolinite.

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Mu3e is a particle physics experiment at the Paul Scherrer Institute, searching for decays of anti-muons (Mu) to an electron and two positrons (3e).

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Mycobacterium phlei

Mycobacterium phlei is a species of acid-fast bacteria in the genus Mycobacterium.

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A nanonetwork or nanoscale network is a set of interconnected nanomachines (devices a few hundred nanometers or a few micrometers at most in size), which are able to perform only very simple tasks such as computing, data storing, sensing and actuation.

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Nanothermometry is a branch of physics and engineering exploring the use of non-invasive precise thermometers working at the nanoscale.

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National HRO

The original National HRO was a 9-tube HF (shortwave) general coverage communications receiver manufactured by the National Radio Company of Malden, Massachusetts, United States.

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Neyco is a French company based in Vanves (Paris surboabd).

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Nimbus 4

Nimbus 4 (also called Nimbus D) was a meteorological satellite.

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Numerical control

Computer numerical control (CNC) is the automation of machine tools by means of computers executing pre-programmed sequences of machine control commands.

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Observational astronomy

Observational astronomy is a division of astronomy that is concerned with recording data about the observable universe, in contrast with theoretical astronomy, which is mainly concerned with calculating the measurable implications of physical models.

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Optical dilatometer

An optical dilatometer is a non-contact device able to measure thermal expansions or sintering kinetics of any kind of materials, unlike traditional push rod dilatometer, it can push up to the dilatometric softening of the specimen.

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Optomechanics can refer to.

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Orthokeratology (also referred to as Ortho-K, Overnight Vision Correction, Corneal Refractive Therapy and CRT), refers to the creation of gas permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia, hyperopia and astigmatism.

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Osteoblasts (from the Greek combining forms for "bone", ὀστέο-, osteo- and βλαστάνω, blastanō "germinate") are cells with a single nucleus that synthesize bone.

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Particle counter

A particle counter is an instrument that detects and counts physical particles.

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Patch clamp

The patch clamp technique is a laboratory technique in electrophysiology used to study ionic currents in individual isolated living cells, tissue sections, or patches of cell membrane.

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Pentium III

The Pentium III (marketed as Intel Pentium III Processor, informally PIII) brand refers to Intel's 32-bit x86 desktop and mobile microprocessors based on the sixth-generation P6 microarchitecture introduced on February 26, 1999.

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Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells.

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Pholiota flammans

Pholiota flammans, commonly known as the yellow pholiota, the flaming Pholiota, or the flame scalecap, is a basidiomycete agaric mushroom of the genus Pholiota.

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Polycrystalline silicon

Polycrystalline silicon, also called polysilicon or poly-Si, is a high purity, polycrystalline form of silicon, used as a raw material by the solar photovoltaic and electronics industry.

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A ponytail is a hairstyle in which some, most or all of the hair on the head is pulled away from the face, gathered and secured at the back of the head with a hair tie, clip, or other similar device and allowed to hang freely from that point.

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Postage stamp paper

Postage stamp paper is the foundation or substrate of the postage stamp to which the ink for the stamp's design is applied to one side and the adhesive is applied to the other.

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In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravity.

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A prefix is an affix which is placed before the stem of a word.

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Psilocybe tampanensis

Psilocybe tampanensis is a very rare psychedelic mushroom in the Strophariaceae family.

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Psilocybe yungensis

Psilocybe yungensis is a species of psychedelic mushroom in the Strophariaceae family.

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Quatsinoporites is an extinct monotypic genus of agaricomycet fungus in the Agaricomycetes family Hymenochaetaceae.

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Railroad chronometer

A railroad chronometer or railroad standard watch is a specialized timepiece that once was crucial for safe and correct operation of trains in many countries.

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Red rain in Kerala

The Kerala red rain phenomenon was a blood rain event that occurred from 25 July to 23 September 2001, when heavy downpours of red-coloured rain fell sporadically on the southern Indian state of Kerala, staining clothes pink.

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Reference point indentation

Reference Point Indentation (RPI) refers to a specialized form of indentation testing.

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Richard Towneley

Richard Towneley (10 October 1629 – 22 January 1707) was an English mathematician, natural philosopher and astronomer from Towneley near Burnley, Lancashire.

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Ring gauge

A ring gauge, or ring gage, is a cylindrical ring of a thermally stable material, often steel, whose inside diameter is finished to gauge tolerance and is used for checking the external diameter of a cylindrical object.

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Robert-Aglaé Cauchoix

Robert-Aglaé Cauchoix (24 April 1776 – 5 February 1845) was a French optician and instrument maker, whose lenses played a part in the race of the great refractor telescopes in the first half of the 19th century.

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Roger Joseph Boscovich

Roger Joseph Boscovich (Ruđer Josip Bošković,, Ruggiero Giuseppe Boscovich, Rodericus Iosephus Boscovicus; 18 May 1711 – 13 February 1787) was a Ragusan physicist, astronomer, mathematician, philosopher, diplomat, poet, theologian, Jesuit priest, and a polymath, Fairchild University website.

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Russula paludosa

Russula paludosa is an edible species of mushroom within the large Russula genus.

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Scientific instrument

A scientific instrument is, broadly speaking, a device or tool used for scientific purposes, including the study of both natural phenomena and theoretical research.

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A screw is a type of fastener, in some ways similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread).

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Screw (simple machine)

A screw is a mechanism that converts rotational motion to linear motion, and a torque (rotational force) to a linear force.

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Screw thread

A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force.

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Semiconductor consolidation

Semiconductor consolidation is the trend of semiconductor companies collaborating in order to come to a practical synergy with the goal of being able to operate in a business model that can sustain profitability.

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Sidney Horstmann

Sidney Adolph Horstmann, MBE (7 July 1881 – 11 July 1962) was a British engineer and businessman.

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SLinCA@Home (Scaling Laws in Cluster Aggregation) was a research project that uses Internet-connected computers to do research in fields such as physics and materials science.

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Snap gage

A snap gage is a form of go/no go gauge.

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Snow refers to forms of ice crystals that precipitate from the atmosphere (usually from clouds) and undergo changes on the Earth's surface.

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A snowflake is a single ice crystal that has achieved a sufficient size, and may have amalgamated with others, then falls through the Earth's atmosphere as snow.

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Sodium hypochlorite

No description.

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Solarmer Energy, Inc.

Solarmer Energy, Inc. is a solar energy company that is developing polymer solar cells, a new type of solar cell; specifically, a subtype of organic photovoltaic cells (OPV).

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Sparkling wine

Sparkling wine is a wine with significant levels of carbon dioxide in it, making it fizzy.

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A spherometer is an instrument for the precise measurement of the radius of curvature of a sphere or a curved surface.

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Spongiforma squarepantsii

Spongiforma squarepantsii is a species of fungus in the Boletaceae family, genus Spongiforma.

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Star-nosed mole

The star-nosed mole (Condylura cristata) is a small mole found in wet low areas in the northern parts of North America.

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Stephen Hopkins (politician)

Stephen Hopkins (March 7, 1707 – July 13, 1785) was a governor of the Colony of Rhode Island and Providence Plantations, a Chief Justice of the Rhode Island Supreme Court, and a signer of the Declaration of Independence.

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Stopping power (particle radiation)

Stopping power in nuclear physics is defined as the retarding force acting on charged particles, typically alpha and beta particles, due to interaction with matter, resulting in loss of particle energy.

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Strike (1925 film)

Strike (Стачка, translit. Stachka) is a 1925 silent film made in the Soviet Union by Sergei Eisenstein.

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STS-3 was NASA's third Space Shuttle mission, and was the third mission for the Space Shuttle ''Columbia''.

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Surface roughness

Surface roughness often shortened to roughness, is a component of surface texture.

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Synthetic diamond

A synthetic diamond (also known as an artificial diamond, cultured diamond, or cultivated diamond) is diamond produced in an artificial process, as opposed to natural diamonds, which are created by geological processes.

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The original meaning of telemeter, and still one of the main uses of the word, was a device used to measure distances to remote objects, that is, a rangefinder.

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The Churchill Machine Tool Company

The Churchill Machine Tool Company Limited began as the manufacturing subsidiaryLloyd Jones & Lewis p. 85.

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Thermal expansion

Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature.

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Thickening agent

A thickening agent or thickener is a substance which can increase the viscosity of a liquid without substantially changing its other properties.

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Thousandth of an inch

A thousandth of an inch is a derived unit of length in an inch-based system of units.

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Threading (manufacturing)

Threading is the process of creating a screw thread.

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Timeline of London

The following is a timeline of the history of London, the capital of England in the United Kingdom.

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TMI Group of Companies

The TMI Group of Companies is a multi-national organization that manufactures and markets physical property testing instruments for the packaging, paper, pulp, plastic film, foil, ink, coatings, nonwoven, textile, adhesives, and corrugated industries.

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Torque wrench

A torque wrench is a tool used to apply precisely a specific torque to a fastener such as a nut or bolt.

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Transit of Venus, 1639

The first known observations and recording of a transit of Venus were made in 1639 by the English astronomers Jeremiah Horrocks and his friend and correspondent William Crabtree.

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Transparency and translucency

In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without being scattered.

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Transversal (instrument making)

Transversals are a geometric construction on a scientific instrument to allow a graduation to be read to a finer degree of accuracy.

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Trueperella pyogenes

Trueperella pyogenes is a species of bacteria that are nonmotile, facultatively anaerobic, and gram-positive.

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Type 97 81 mm infantry mortar

The Type 97 81 mm infantry mortar was a Japanese mortar used primary by Imperial Japanese Army during World War II.

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UScoCTIO 108

UScoCTIO 108 is a binary system, approximately 470 light-years away in the Upper Scorpius (USco) OB association.

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VéloSoleX is a moped, or motorised bicycle, usually just referred to as 'Solex', which was originally produced by the French manufacturer Solex, based in Paris, France.

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Vein (geology)

In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock.

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Venera 9

Venera 9 (Венера-9 meaning Venus 9), manufacturer's designation: 4V-1 No.

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Vernier scale

A vernier scale is a visual aid that allows the user to measure more precisely than could be done unaided when reading a uniformly divided straight or circular measurement scale.

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Vibrio cyclitrophicus

Vibrio cyclitrophicus (previously known as Vibrio cyclotrophicus) is a polycyclic aromatic hydrocarbon (PAH)-degrading marine bacterium.

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Volkert Simon Maarten van der Willigen

Volkert Simon Maarten van der Willigen (Rockanje, 9 May 1822 – Haarlem, 19 February 1878), sometimes referred to as Volcardus Simon Martinus van der Willigen, was a Dutch mathematician, physicist and professor.

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Webley & Scott

Webley & Scott is an arms manufacturer founded in Birmingham, England.

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What the Stuarts Did for Us

What the Stuarts Did for Us is a 2002 BBC documentary series that examines the impact of the Stuart period on modern society.

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Will Hay

Hay in ''The Ghost of St. Michael's'' (1941) William Thomson Hay (6 December 1888 – 18 April 1949) was an English comedian, actor, author, film director and amateur astronomer who came to notice for his theatrical sketch as a jocular schoolmaster, known as Dr.

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Willem Hendrik van den Bos

Willem Hendrik van den Bos (25 September 1896, Rotterdam – 30 March 1974) was a Dutch–South African astronomer.

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William Gascoigne (scientist)

William Gascoigne (1612 – 2 July 1644) was an English astronomer, mathematician and maker of scientific instruments from Middleton, Leeds who invented the micrometer.

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William Sadler Franks

William Sadler Franks (26 April 1851 in Newark, Nottinghamshire – 19 June 1935 in East Grinstead) was a British astronomer.

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WISE 0458+6434

WISEPC J045853.90+643451.9 (designation is abbreviated to WISE 0458+6434) is a binary system of two (A and B) ultracool brown dwarfs of spectral classes T8.5 and T9.5, respectively, located in constellation Camelopardalis at approximately 47 ly from Earth.

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Yoon Kyung-byung

Yoon Kyung-byung is a South Korean chemist.

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Zenith telescope

A zenith telescope is a type of telescope that is designed to point straight up at or near the zenith.

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Zinc sulfide

Zinc sulfide (or zinc sulphide) is an inorganic compound with the chemical formula of ZnS.

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1640 in science

The year 1640 in science and technology involved some significant events.

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1984 Romeoville petroleum refinery disaster

On July 23, 1984, an explosion and fire took place at a Union Oil petroleum refinery in Romeoville, Illinois, outside Chicago, killing 17 people and causing major property damage.

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3D printing

3D printing is any of various processes in which material is joined or solidified under computer control to create a three-dimensional object, with material being added together (such as liquid molecules or powder grains being fused together).

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Micrometer (device), Micrometer (measuring instrument), Micrometer screw, Micrometer screw gauge, Screw Gauge.


[1] https://en.wikipedia.org/wiki/Micrometer

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