Find out information about divider. While dividing screens and doors are often used in residential homes, large room dividers are more commonly utilized in venues such as community centers and conference halls, where multiple activities may run concurrently and require separate spaces. Accuracy of measurement when using a caliper is highly dependent on the skill of the operator. 99 $34.59 $34.59 If the reading is 0.10 mm, the zero error is referred to as +0.10 mm. Other uses include adding color, redirecting foot traffic, creating a foyer, adding a desk front modesty screen, creating coziness, or adding a decorative background. Synonyms for divider in Free Thesaurus. The serial digital output varies among manufacturers. The dial is usually arranged to be rotatable beneath the pointer, allowing for "differential" measurements (the measuring of the difference in size between two objects, or the setting of the dial using a master object and subsequently being able to read directly the plus-or-minus variance in the size of subsequent objects relative to the master object). Mahr (Digimatic, RS232C, Wireless FM Radio, Infrared and USB), This page was last edited on 18 January 2021, at 19:32. Well you're in luck, because here they come. Some models include additional components including beam bars, adapters for … Angles are indicated by a mark that points to numbers printed around the fulcrum of the two rulers—as the rulers swivel, the mark adjusts according to the rulers' positions in relation to one another. The wooden piece already featured a fixed and a movable jaw. Format is 24 bit 90 kHz synchronous. Step 2 Hold the proportional divider with one hand and extend your arm out directly in front of you. As a verb compass is to surround; to encircle; to environ; to stretch round. In areas where room dividers need more flexibility, hotels and restaurants might use portable partitions similar to those used in schools. $9.95 $ 9. Explore. Numbers on the side of the proportional divider, just above the thumb nut, indicate the different scales. Toll free (877)376-7885. Petrowski, Elaine Martin: "Design Ideas for Home Storage", page 92. Chiefly British A highway median strip. A divider is a compass that has two parts with a spike, and is used to show measurements of distances and lengths. Folding room dividers are now used in dwellings, hospitals, schools, restaurants, corporate offices and convention centers. The combination of these printed circuit boards forms two variable capacitors. ‘Diversity management is an important tool in exploiting opportunities and meeting these challenges.’ ‘Its role as a diagnostic tool has recently been exploited.’ ‘The hunger for a medium of personal expression is being exploited as a marketing tool by companies who work to … A flow divider can split flow equally, unequally, and into more than two paths. Shop by department, purchase cars, fashion apparel, collectibles, sporting goods, cameras, baby items, and everything else on eBay, the world's online marketplace however digital vernier calipers have greater precision than mechanical vernier calipers because the least count of digital vernier calipers is 0.01 mm. Examples are a base that extends its usefulness as a depth gauge and a jaw attachment that allows measuring the center distance between holes. ABN 6in Automotive Magnetic Tray Small Parts Dish with Divider, Metal Magnet Bowl Mechanic Tool, Screw, Pin, Bolt Holder 4.8 out of 5 stars 44 $11.99 $ 11 . One that divides, especially a screen or other partition. Zara is one of the largest international fashion companies. $18.57 $ 18. To hide areas of different usage or privacy protection, To decorate rooms for better home design effect, Permanent as in using wine shelves in restaurants, Built in as in sliding partitions in offices, Portable or temporary as for example in convention centers, Fixed room dividers and hanging room dividers, This page was last edited on 12 January 2021, at 14:27. Divider is used to measure from point to point, scribing circles and other layout work Each tool has a hardened measuring face, a tempered bow spring and an adjusting screw that has self-seating washer and nut to permit quick and positive adjustment Compare Similar Professional & Industrial Tool Sets This measurement must be added to the coarse whole inches or centimeters read from the slide. [8] divider synonyms, divider pronunciation, divider translation, English dictionary definition of divider. To compare sizes of drawing elements open the divider points across one element then compare against the second or compare by measuring each against a scale ruler. All structured data from the file and property namespaces is available under the Creative Commons CC0 License; all unstructured text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. Use proportional dividers for your next art project or to aid you with your sketches to help you create a realistic rendering. The two capacitances are out of phase. In application the output voltage depends upon the resistance of the load it drives. A device called a flow divider splits flow and compensates for pressure differences in most cases. Amazon's Choice for dividers tool. This page was last edited on 21 February 2019, at 10:45. More Buying Choices $17.25 (6 new offers) ZLKSKER 6 Inch Adjustable Lockable Steel Divider … They were very heavy and ornate, and were not moved around. A vernier caliper does not have the depth capacity to straddle this large diameter while at the same time reach the outermost points of the pipe's diameter. The circuitry built into the slider counts the bars as the slider moves and does a linear interpolation based on the magnitudes of the capacitors to find the precise position of the slider. Hope Press, 1995. In schools or religious facilities, room dividers primarily are used to create temporary classrooms for education in large open rooms. This ensures that drawings stay to scale to each other. There is a (free) design tool from Agilent, designed to promote their products, which has sections where you can figure out any transmission line impedance you desire. For example, when measuring the thickness of a plate a vernier caliper must be held at right angles to the piece. 4.4 out of 5 stars 803. The inside calipers are used to measure the internal size of an object. Sep 13, 2013 - This divider can be crafted : For smaller sizes, can be removed grey zero from the dimensions. In the diagram at left, the uppermost caliper has a slight shoulder in the bent leg allowing it to sit on the edge more securely, the lower caliper lacks this feature but has a renewable scriber that can be adjusted for wear, as well as being replaced when excessively worn. The modern vernier caliper was invented by Pierre Vernier, as an improvement of the nonius of Pedro Nunes. The digital interface significantly decreases the time to make and record a series of measurements, and it also improves the reliability of the records. A pattern of bars is etched directly on the printed circuit board in the slider. Compass with Divider include a piece of graphite lead & extra divider point. A suitable device to convert the serial data output to common computer interfaces such as RS-232, Universal Serial Bus, or wireless can be built or purchased. This probe is slender and can get into deep grooves that may prove difficult for other measuring tools. Affordable options to meet all budgets including mounting hardware and full sneeze guards! Thousands of new, high-quality pictures added every day. Contact Us Under the scale of the caliper another printed circuit board also contains an etched pattern of lines. [19] Digital calipers have zero set buttons, for quick recalibration. A proportional divider is an instrument used by artist and draftsman to maintain scale ratio when transferring design elements from a 3 dimensional object, drawing, or photo to another surface. 2 synonyms for divider: splitter, partition. The two caliper's ends are brought to the two points whose distance is being measured. Dividers are also used in the medical profession. 95. The vernier, dial, and digital calipers give a direct reading of the distance measured with high accuracy and precision. Pile, John, F.: "Interior Design", Page 417. Most also require batteries and do not resist coolant well. Mackin. A device resembling a drawing compass and used to transfer measurements of length. To divide rooms, creating a more efficient use of the space within the room. They are made from high carbon steel. A shoji screen may also be used to section off part of a bedroom or family room as an office. spirit level definition: 1. a tool that contains a tube of liquid with an air bubble in it, used to show if a surface is…. 17-32 of 389 results for "divider tool" Price and other details may vary based on size and color. (Tools) a type of compass with two pointed arms, used for measuring lines or dividing them Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 The tool appears as two straightedge rulers hinged together at one end. Malco 24 24 in. FREE Shipping on orders over $25 shipped by Amazon. 2. Dial calipers are comparatively easy to read, especially when seeking the exact center by rocking and observing the needle movement. One design maintains a constant flow for one outlet and directs any excess flow to a second outlet. Company. Vernier, dial, and digital calipers can be used with accessories that extend their usefulness. All components have been redesigned and optimized for easier installation and a more secure fit. Divider definition is - one that divides. On a nautical chart the distance is often measured on the latitude scale appearing on the sides of the map: one minute of arc of along any great circle, as for example, any longitude meridian, is approximately one nautical mile or 1852 meters. Other digital calipers contain an inductive linear encoder, which allows robust performance in the presence of contamination such as coolants. Home Maintenance. When the pointer is between two markings, the user can mentally interpolate to improve the precision of the reading. These fixed dividers can be used to divide a banquet room into smaller facilities. The most common room divider used in convention center is pipe and drape. Convention centers, by their very nature, are large facilities with wide open internal spaces. The two resistor voltage divider is used often to supply a voltage different from that of an available battery or power supply. A caliper (British spelling also calliper, or in plurale tantum sense a pair of calipers) is a device used to measure the dimensions of an object. Berner, Jeff: "The Joy of Working from Home", page 27. WEWLINE Portable Multi-function Tool Box, Plastic Toolbox with Organizer Tray and Divider,Household Folding Three-layer Tools Box Organizer 4.2 out of 5 stars 51 $29.99 $ 29 . Digital calipers switch easily between the centimeter and inch systems. Digital calipers have an advantage in this area. In production environments, reading vernier calipers all day long is error-prone and is annoying to the workers. What are synonyms for divider? A room divider is a screen or piece of furniture placed in a way that divides a room into separate areas. Define divider. Williams, Peter W.: "Houses of God", page 121. A room divider is a screen or piece of furniture placed in a way that divides a room into separate areas. Be sure to leave plenty of room for stuff on the left. Meel, Juriaan van: "The European Office", Page 81. ... Real compasses are used on paper, but the perfect compass used in proofs is an imaginary, perfect tool that draws perfect circles. It is used in many fields such as mechanical engineering, metalworking, forestry, woodworking, science and medicine. 57. If it does not, it must be recalibrated or repaired. Zero error may arise due to knocks that affect the calibration at 0.00  mm when the jaws are perfectly closed or just touching each other. This is the dominant name brand interface. This would be a simply calibrated caliper, but the addition of a vernier scale allows more accurate interpolation and is the universal practice; this is the vernier caliper. Ernst Drawer Divider II – 2nd Generation New and improved! May 5, 2018 - This Pin was discovered by adi. Negative zero error refers to the fact that when the jaws of the vernier caliper are just closed, the reading is a negative reading away from the actual reading of 0.00  mm. [8][9] Since the rooms were designed originally to be open for other purposes, the most common type of room divider is a portable room divider on casters which can easily be moved from place to place. Encyclopædia Britannica from, Encyclopædia Britannica 2006 Ultimate Reference Suite DVD, "Harbor Freight Tools – Quality Tools at Discount Prices Since 1977", RS-232 Interface Design Details For Digital Caliper,, Length, distance, or range measuring devices, Short description is different from Wikidata, Articles with failed verification from May 2020, Creative Commons Attribution-ShareAlike License, The upper caliper in the image (at the right) requires manual adjustment prior to fitting. The first thing we'll do is to add the two AND gates. 85 Ordinary 6-in/150-mm digital calipers are made of stainless steel, have a rated accuracy of 0.001 in (0.02mm) and a resolution of 0.0005 in (0.01 mm). [2][3], A bronze caliper, dating from 9 AD, was used for minute measurements during the Chinese Xin dynasty. The customer is at the heart of our unique business model, which includes design, production, distribution and sales through our extensive retail network. Creative Homeowner, 2006. 4.7 out of 5 stars 325. Calibrated calipers may be mishandled, leading to loss of zero. A consistent, firm touch is correct. Mitutoyo's Digimatic interface. A caliper using a calibrated screw for measurement, rather than a slide, is called an external micrometer caliper gauge, a micrometer caliper or, more often, simply a micrometer. Measure distance by opening the divider points to a set scale then plot across the drawing or map to get a distance. Browse our acrylic panels that can be used to create barriers between staff and customers! Stickels, Karen, Walker, Jessie: "Design Ideas for Fireplaces", page 132. Timepieces take on style sensibility with our collection of watches for men. A room divider is a semi-permanent partition that allows for a space to be split up in separate areas. Typically, the pointer rotates once every inch, tenth of an inch, or 1 millimeter. [3] Plants,[4] bookshelves,[5] railings,[6] fireplaces,[7] light fixtures, and drapes have all been used to effectively create distinct spaces in individuals apartments and homes. Like dial calipers, the slide of a digital caliper can usually be locked using a lever or thumb-screw. Shoji screens are usually tri-fold walls. Proportional dividers allow architects and artists to transfer different measurements onto paper while keeping the same proportions. Portable room dividers have folded wall panels supported on wheels. They are available in sizes that can measure up to 1828 mm (72 in).[7]. See more. Divider, instrument for measuring, transferring, or marking off distances, consisting of two straight adjustable legs hinged together and ending in sharp points. A single tool might be referred to as a "caliper" or as "calipers", like a pair of scissors or glasses (a "plural only" or plurale tantum form). The distance between the jaws is then read in different ways for the three types. The same observations and technique apply to this type of caliper, as for the above inside caliper. Jefferis, Alan, Madsen, David A.: "Architectural Drafting and Design", page 479. Creative Homeowner, 2007. If the reading is −0.08  mm, the zero error is referred to as −0.08  mm. Colloquially these phrases can also refer to dial calipers, although they involve no vernier scale. There are many uses for a room divider including: dividing the room, adding privacy to any space, hiding clutter and increasing storage and accents to the room. Deliverables. McGraw-Hill Professional, 2001. Did you scroll all this way to get facts about divider tool? A.: "Managing Conventions and Group Business", page 28. Rather than a rack and pinion, these calipers use a linear encoder. In colloquial usage, the phrase "pair of verniers" or just "vernier" might refer to a vernier caliper. Two design files: 33% duty cycle clock divider and 50% duty cycle clock divider Hoyle, Leonard H., Dorf, David C., Jones, Thomas J. In offices, room dividers are typically more permanent in nature and attached directly to the floor. Most commonly used in the residence is a small room divider, sometimes called a folding shoji screen. Regardless of type, a caliper's jaws must be forced into contact with the part being measured. A vernier caliper does not easily lose its calibration but a sharp impact or accidental damage to the measuring surface in the caliper jaw can be significant enough to displace zero. Each of the above types of calipers has its relative merits and faults. Tools .. The Vintage Tool Shop of Stalbridge buy and sells quality Vintage and Used Hand Tools of all types, from good hand planes, chisels and carving tools to all manner of tools used by crafts as diverse as stonemasons or blacksmiths, leather workers or potters. Some digital calipers contain a capacitive linear encoder. This is especially the case with digital calipers, calipers out of adjustment, or calipers with a poor quality beam. Hotels and restaurants use two different types of room dividers. This is the common protocol for inexpensive, non-name brand, calipers. Whether plain or elaborate, buckled or slip-on, the collection complements your wardrobe in the same subtle but tasteful way that wallets, ties, sunglasses and scarves do. This is a greater problem with a caliper incorporating a wheel, which lends mechanical advantage. As the slider moves the capacitance changes in a linear fashion and in a repeating pattern. where is the parallel resistance of R 2 and the load resistor R L. [1][2] Room dividers are used by interior designers and architects as means to divide space into separate distinct areas. Hand tool - Hand tool - File: The file’s many tiny chisel-like teeth point in the direction in which it must be pushed in order to be effective. H.N. Digital calipers may contain a "reading hold" feature, allowing the reading of dimensions after use in awkward locations where the display cannot be seen. Marilyn Pierce Dornbush, Sheryl K. Pruitt: "Teaching the Tiger", page 110. Format is 52 bits arranged as 13 nibbles. Ernst Drawer Divider II is now easier than ever - ready to help you conquer toolbox clutter. but when using current divider, we normally do not know the voltage, we know current. With some understanding of their limitations and usage, these instruments can provide a high degree of accuracy and repeatability. You guessed it: black. Get it as soon as Thu, Sep 3. Voltage division is the result of distributing the input voltage among the components of the divider. Divider caliper, a measuring tool; Divider, a central reservation in Bangladesh; Divisions of the field, a concept in heraldry; Division (naval), a collection of naval units; Division (logical fallacy), when one reasons logically that something true of a thing must also be true of all or some of its parts Divider measures approx. Get it as soon as Mon, Dec 28. Increasingly, digital calipers offer a serial data output to allow them to be interfaced with a dedicated recorder or a personal computer. The bent leg is used to run along the workpiece edge while the scriber makes its mark at a predetermined distance, this ensures a line parallel to the edge. b. Houses, and other residences, use a room divider to divide the space more effectively or as a decorating focus point. Then click in the editing area where you want the first AND gate to go. University of Illinois Press, 2000. The method to use a vernier scale or caliper with zero error is to use the formula "actual reading = main scale + vernier scale − (zero error)". Discover (and save!) Files are available under licenses specified on their description page. dividers definition: 1. a piece of equipment used in mathematics consisting of two parts that are joined at one end and…. However, vernier calipers require good eyesight or a magnifying glass to read and can be difficult to read from a distance or from awkward angles. Commonly, you will see floor-to-ceiling room dividers[10] in banquet halls and meeting spaces. in this example, total current is I=I1+I2+I3=6+2+3=11mA if we didn't know voltage but did know that total current is 11mA and resistor values are 1k 3k and 2k, we could … FREE Shipping on … A room divider for a conference hall. Some digital calipers can be switched between centimeters or millimeters, and inches. They can be mechanically and electronically fragile. Learn more. Proportional Divider Drawing Tool for Artists by Pixiss, Gray Scale Value Finder, Color Wheel and Artists View Catcher Finder 4.4 out of 5 stars 474 $14.99 $ 14 . Mr. A popular refinement replaces the analog dial with an electronic digital display that displays the reading as a numeric value. Explanation of divider See more. Calipers may read to a resolution of 0.01 mm or 0.0005 in, but accuracy may not be better than about ±0.02 mm or 0.001 in for 150 mm (6 in) calipers, and worse for longer ones.[18]. Customer divider bar on the side.jpg 2,199 × 728; 917 KB Customer divider bar.jpg 2,272 × 1,704; 1.47 MB Hassloch gfk-households 20060314 721 part.jpg 1,818 × 261; 109 KB As decorators and/or accent pieces to add character to room space. Instead of using a vernier mechanism, which requires some practice to use, the dial caliper reads the final fraction of a millimeter or inch on a simple dial. The caliper's opening is then either measured on a separate ruler and then converted to the actual distance, or it is measured directly on a scale drawn on the map. They are usually fairly susceptible to shock damage. European travelers developed their own version of Asian screen dividers using wood, leather, silk, mirrors and decoupage. The calipers included a "slot and pin" and "graduated in inches and tenths of an inch."[4][5]. Whether the scale is part of the caliper or not, all-analog calipers—verniers and dials—require good eyesight in order to achieve the highest precision. Oddleg calipers, Hermaphrodite calipers, or Oddleg Jennys, as pictured on the left, are generally used to scribe a line at a set distance from the edge of a workpiece. They can be set to 0 easily at any point with a full count in either direction and can take measurements even if the display is completely hidden, either by using a "hold" key, or by zeroing the display and closing the jaws, showing the correct measurement, but negative. The output voltage is depends on component values, or on the setting of the potentiometer. Screenshots from ModelSim and the oscilloscope should be included in your report. All provide for zeroing the display at any point along with the slide, allowing the same sort of differential measurements as with the dial caliper. Divider definition: A divider is something which forms a barrier between two areas or sets of things. Vernier, dial, and digital calipers can measure internal dimensions (using the uppermost jaws in the picture at right), external dimensions using the pictured lower jaws, and in many cases depth by the use of a probe that is attached to the movable head and slides along the center of the body. The most strict definition of this ideal tool, used for explaining, is the "collapsing compass". Pen Professional Metal Compass with Wheel and Lock for Geometry, Drafting, Math, Drawing. They can be set to 0 at any point for comparisons. Many types of calipers permit reading out a measurement on a ruled scale, a dial, or a digital display. The ship's find dates to the 6th century BC. Because little material is removed with each stroke, the tool is well suited to smoothing a rough workpiece or altering its details. Shop by department, purchase cars, fashion apparel, collectibles, sporting goods, cameras, baby items, and everything else on eBay, the world's online marketplace Proportional Dividers to Transfer Drawing Scale or Equally Divide Lines & Circles A proportional divider is an instrument used by artist and draftsman to maintain scale ratio when transferring design elements from a 3 dimensional object, drawing, or photo to another surface. Common options are. Some practice may be needed to measure round or irregular objects correctly. Your report as a PDF uploaded to Collab. Outside calipers are used to measure the external size of an object. Looking for divider? If you'd like to create a chart and divide it into individual pieces, follow the step-by-step instructions below. We find, restore and resell a makers dream tool. 10" long and has the logo of peck stow and wilcox which says PEXTO Made in USA 10 stamped towards top. With such a converter, measurements can be directly entered into a spreadsheet, a statistical process control program, or similar software. Purpose: to press the dough placed in the reels plates, preparing it for the cutting process your own Pins on Pinterest Find divider stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. They may have both centimeter and inch scales. A divider’s two arms have a point which ends touch when closed. In the metalworking field, a divider caliper, popularly called a compass, is used in the process of marking out locations. A piece of card placed in a ring binder to separate groups of documents. These calipers comprise a calibrated scale with a fixed jaw, and another jaw, with a pointer, that slides along the scale. divider - a drafting instrument resembling a compass that is used for dividing lines into equal segments or for transferring measurements drafting instrument - an instrument used by … The slide of a dial caliper can usually be locked at a setting using a small lever or screw; this allows simple go/no-go checks of part sizes. A Wilkinson divider is built using two transmission lines of impedance Zo*SQRT(2), and are quarter-wavelength (lambda/4) long. : a tool that consists of two pointed sticks joined at the top and that is used for measuring or marking lines and angles See the full definition for divider in the English Language Learners Dictionary Antonyms for divider. Educational Institute of the American Hotel & Motel Association, 1989., Creative Commons Attribution-ShareAlike License. The earliest caliper has been found in the Greek Giglio wreck near the Italian coast. [1][2] Although rare finds, calipers remained in use by the Greeks and Romans. The tips of the caliper are adjusted to fit across the points to be measured and the dimension read by measuring between the tips with another measuring tool, such as a ruler. Learn more. (Britain, US) The median (US) or central reservation (Britain) of a highway or other road … Broken down into smaller areas other measuring tools more efficient use of the distance measured high... Jones, Thomas J by rocking and observing the needle movement Creative Commons Attribution-Share Alike 3.0 Unported rather a. There are 5893 divider tool equipment used in mathematics consisting of two parts with a and! '' might refer to a set scale then plot across the drawing map. That divides count of digital vernier calipers commonly used in many fields such mechanical! Quality beam the tool is well suited to smoothing a rough workpiece or its! Acrylic panels that can be directly entered into a divider is used in many fields such as.! Colloquial usage, `` caliper '' implies only the form factor of the above inside.... Poor quality beam gives insufficient contact and an over indication A.: `` Design Ideas for Home storage '' page. Caliper '' implies only the form factor of the reading is −0.08 mm, the amount force. Voltage depends upon the resistance of the largest international fashion companies inside.! To each other such as coolants to each other houses, and are largely.! And Design '', page 28 jaws are fully closed, it,!, `` caliper '' implies only the form factor of the world and hosted by the Foundation. Know the voltage, we normally do not know the voltage, we know current flow divider can be grey... To show measurements of distances and lengths aid you with your sketches to you... Are largely shockproof if the reading is 0.10 mm, the tool is often used in mathematics of. The slider moves the capacitance changes in a repeating pattern internal spaces the vernier or dial caliper ( or digital... In most cases may be mishandled, leading to loss of zero staff and customers center sets up frames of! 17-32 of 389 results for `` divider tool part being measured the position of the potentiometer 19 ] digital offer... `` Teaching the Tiger '', page 479 by volunteers around the world ’ two... David A.: `` Design Ideas for Home storage '', page 121 by opening divider. One end and… if it does not, all-analog calipers—verniers and dials—require good eyesight in order to take desired! Follow the step-by-step instructions below with inward or outward-facing points, but no scale, which cause! And a movable jaw Amazon 's Choice for dividers tool, hospitals, schools, restaurants, offices! 13.79 Amazon 's Choice for dividers tool room space consider if the calipers used... All components have been redesigned and optimized for easier installation and a jaw. … divider definition, a caliper 's jaws must be held at angles! Portable room dividers have folded wall panels supported on wheels these printed circuit board contains! The different scales get a distance of calipers has its relative merits and faults voltage is on..., divider translation, English dictionary definition of this caliper type is performed by tapping the or. Little material is then read in different ways of reading the result distributing! All components have been redesigned and optimized for easier installation and a jaw attachment that allows measuring thickness. A room into separate distinct areas semi-permanent partition that allows measuring the thickness of a digital display decorators! Divider used in dwellings, hospitals, schools, restaurants, corporate offices and convention centers, by their nature. With solid engagement.The ernst 2.9 '' Drawer divider Rails integrate with patented Drawer divider Rails integrate with patented divider... The phrase `` pair of verniers '' or just `` vernier '' might to... Especially useful when measuring over very large distances ; consider if the reading of lines micrometres ), or millimeter!

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