![]() We don't publish your images to any sites, the copyright of your images belongs to you. If you didn't click "View the GIF/Frame/Video Animation" on the homepage of, then all of your images will be removed after a few hours by the scheduled task, you don't need to remove your images manually.Īny files uploaded on other pages( gif resizer, video maker, etc. Alternatively, you can send me an email to let me delete it for you. You can click the "Delete your images" link to remove images from the site. It's recommended that you resize your images to smaller size before uploading, this will boost the speed significantly. 1366x768 px ) and use them as your desktop wallpapers, Facebook cover photos, PInterest profile pictures, iPhone wallpapers, etc. You can access to crop, resize and optimize GIF, JPEG and PNG images, it's handy if you want to resize your gifs to a smaller size and use it as your avatar icons on other sites, or crop your images to a specific size( e.g. I want to crop, resize and compress my GIFs. 512 x 512 px ), and display it in a smaller size( e.g. jpg format and upload them ģ.2, Reduce the color number in each image with your image editor ģ.3, Create your gif in a larger size( e.g. To make a gif in better image quality, you can:ģ.1, Save your images in. ![]() You can only include 256 colors in each frame of a GIF image, which is defined by the GIF format itself. The high quality version is not in GIF format, they're multiple static images. How to download the high quality version gifs? To publish GIFs to your own server, please upload the original or optimized GIF files to the server directly, don't instert them into the HTML editor and publish the webpage along with GIFs using the HTML editor, since some HTML editors with modify the GIF files. Some websites do not support the animated GIFs, you can't add a gif on its webpage. Some platforms like iPhone will display the animated GIFs you downloaded as static images, you can either view these GIFs with a third-party app, or insert them in a webpage or email to animate them. ![]() Please notice that some image hosting sites will modify the images you uploaded( you can compare the file size of the original gif created by, and the one you've uploaded to the cloud ), making it possible that the gif does not animate / loop anymore. Alternatively, you can download xnview to play your gifs, this image viewer supports the animated gif format well. Please download your gif to your computer, then drag and drop it into your Web browser( FireFox, Chrome, Safari, IE ) to play it. The GIF image does not animate or does not loop. If you encountered the "upload error 500" message on, it means that your files are not uploaded successfully, or can't be processed by the server, there are several occasions that this error will occur: the file size is too large, the image dimensions are too large, the file is invalid( you may need to save your images with an image editor like Photoshop ), or the server is busy.Ģ. If your images are uploaded successfully, you'll see the image thumbnails under the "Upload Images" button. Please resize your images to smaller dimensions and upload them again. ![]()
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![]() MARTA: Route 36, or 5-minute walk from Decatur Station. ![]() Where: Decatur Conference Center 130 Clairemont Ave. When PTS orders the passes from MARTA approximately two weeks prior to the pass month, you’ll receive an email stating when and where to pick up your Breeze card, which will be activated to start the 1st of the month. MARTA SEEKS CUSTOMER INPUT ON FUTURE BUS NETWORK REDESIGN Authority Wants to Know.This will ensure your pass is deactivated for the next month.) ( To end a current deduction, enter a Stop Date of the 4th of the current month. Enter a Deduction Start Date of the 4th of the upcoming month.Enter deduction amount (if you’re paid biweekly put half the pass amount, as you will be deducted twice).To start a new deduction, click on ‘Add Deduction’ and choose your transit provider (MARTA, Xpress, CobbLinc or Ride Gwinnett).Click on the Voluntary Deductions tile.Sign into OneUSG Connect via Techworks and click on the Payroll tile.For a complete stop list, with links to all stops for stop details and real-time vehicle predictions, please visit Stops/Description section of route page. All changes must be made by the 4th of the month to take effect the following month. Table below shows selected stops and planned service. Purchasing a transit pass through payroll deduction, or making a change to your payroll deduction, is now made in OneUSG Connect. Have questions? To request this information in another language or in an accessible format, call 40.Employees are also eligible to purchase their transit pass via payroll deduction for MARTA, GRTA Xpress, CobbLinc, and Ride Gwinnett. Back in November, the public transit authority stated that it is struggling with. ![]() A good portion of this trail does have shade. This route will take you past Waterman Mountain (without summiting it) to the summit of the Twin Peaks. Learn more about the Bus Network Redesign here: : ATLANTA The Metro Atlanta Transit Authority is looking for input in helping redesign bus routes in 2022. Twin Peaks are located at over 7000 feet above sea level. Interactive virtual meetings are scheduled for December, with additional public outreach and technical workshops planned before a bus network redesign proposal is released next spring. Route 36, or 5-minute walk from Decatur Station All meetings will be streamed on MARTA’s YouTube page Meetings will be held in-person and masks are required. All current MARTA bus routes remain intact and operationalĪnd all service areas will be part of any redesigned network. Recommended plan but opposing examples to illicit feedback that will eventually inform the plan. Customers are reminded that the scenarios presented in the meetings and through the media are NOT a 66 min From Sausalito 58 min From Coit Tower 66 min From Four Points by Sheraton Hotel & Suites San Francisco Airport 67 min How to get to Twin Peaks, Sf by BART Click on the BART route to see step by step directions with maps, line arrival times and updated time schedules. MARTA first announced a desire to reimagine its bus network last year and these meetings are an important step in determining what riders want from their bus system. Hypothetical and designed to generate dialogue and debate about how MARTA can The concepts presented in the meetings are To have buses arrive more frequently on fewer routes or serve more routes with less frequent arrivals. The MARTA has 113 Bus routes in Atlanta with 8873 Bus stops. Almost half of MARTA riders are between the age of 16 and 34. MARTA is your direct route for all flights in and out of Hartsfield-Jackson International Airport. MARTA keeps over 185,000 cars off the road everyday. MARTA riders and potential customers will be asked if they prefer MARTA attained the Silver level of recognition for its sustainability efforts. CUSTOMER INPUT ON FUTURE BUS NETWORK REDESIGN Authority Wants to Know: “Do You Want Buses to Arrive MoreĪTLANTA - The Metropolitan Atlanta Rapid Transit Authority (MARTA) will hold four public meetings this month to solicit feedback on imagined scenarios that will ultimately inform a redesign of its bus network. ![]() ![]() ![]() ![]() This again narrows you at a smaller part of your frame and a well-tailored dress will still skim the areas that make you feel self-conscious. While you should avoid horizontal detailing right across your stomach, do invest in tailored dresses, including shift dresses that have a slightly higher waistline. Higher waistlines: It can be tempting to opt for dresses that have little shape in a bid to hide your stomach, but actually when it comes to dressing to hide a tummy, having an element of shaping and tailoring is really important.Cutting through you vertically, the center block panel creates the illusion of a narrower silhouette and more slender waistline, adding curves and disguising a tummy in the process. Using block coloring, illusion dresses revolve around having a central panel through the front center (and sometimes also back center) of the dress. Illusion paneling: Illusion dresses are a super sleek way to not only hide a tummy but also create hourglass curves.Wearing print is also an easy way to inject vibrant colors into your wardrobe. A busy print acts as sartorial camouflage and helps to hide a multitude of insecurities, including helping to disguise a tummy. Printed: Don’t shy away from patterns and prints.Subtle puckering and soft drapery is a really flattering way to disguise your middle and when it starts from the side of the waist it can also help to create the illusion of a narrower waistline. Ruching: Ruched details and gathering swooping across a midsection of a dress is an ingenious way to hide a tummy.Length is important in this style so that you don't end up overwhelmed. For petite frames, opt for a shorter style, no longer than knee length, while taller shoppers can afford to go for a midi trapeze dress. This shape is a good dress silhouette to hide a tummy because it doesn't cling to your shape, making it a particularly comfortable one too. Opt for a style that flutes out once it has past your armpit (so you get a little bit of bustline definition before it fills out. Trapeze: Don't be put off by the name, trapeze dresses don't have to be tent-like.The rest of the dress should have a flared or A-line fit that floats over the stomach. Drawing the eye to the smallest part of your torso by nipping you in directly under the bust, they give the illusion of a higher waistline. Empire line: When it comes to hiding your stomach, empire line styles are always a good bet.For added coverage, look for wrap dresses with a soft ruffle across the front or some soft draping detailing. The deep V neckline makes them well suited to larger busts, but they'll provide a boost to smaller cup sizes too. A well-cut one will fit and flatter up top, before skimming over your middle. Wrap: Flattering on all body shapes, a wrap dress is a capsule wardrobe staple, not to mention a shape Kate Middleton turns to on the regular. ![]() The best styles of dresses to hide a tummy ![]() ![]() ![]() Hydrogen isotopes, Deuterium and Tritium are the primary fuels, which are used in fusion power plants experimentation Uranium is the significant fuel used in nuclear power plants primarily ![]() Nuclear fission has an application in nuclear power plantsįusion is the technology for experimentation that is used for the generation of energy One class nuclear weapon is the H2 bomb that uses a fission reaction to activate a fusion reaction One class of nuclear weapons is a fission bomb to which we call an atomic bomb. The energy released in the process of fusion is 3-4 times higher than that of what is released by fission. The energy released by fission is a million times greater than that released in chemical reactions. It takes a little energy to split an atomĮxtremely high energy is required to bring two or more protons in close approach with each other It is necessary to have a critical mass of the substance with high-speed neutrons for a nuclear fission process to occurĪ higher density with an environment of high temperature is necessary for the process of nuclear fusion The process of fusion can be observed in stars such as the sunīy-products formed after the reaction takes placeĪ lot many highly radioactive particles are generated after fissionĪ very few radioactive particles are produced in the process of nuclear fusion, however, when the “trigger” fission is used then the formation of radioactive particles take place This cannot be observed in nature as fission does not occur naturally Nuclear fusion is the combination of two or lighter atoms to form a larger one Nuclear Fission refers to the splitting of one atom into two or more daughter atoms (lighter atoms) The Distinction between Nuclear Fission and Nuclear Fusion in Tabular form: Consider two train bogies joining or fusing via a magnet. The nuclear fusion process is endothermic because it requires absorbing energy to fuse two atoms. The term 'nuclear fusion' refers to the process by which two or more atoms combine to form a larger atom. The term "fuse" refers to the joining of two or more objects. When the nuclear fission process breaks, a large amount of energy is released, indicating that the nuclear fission process is exothermic. These small atoms are technically light in their weight. In this context, nuclear fission refers to the breaking or splitting of a large or parent atom into smaller ones, or two or more daughter atoms. The term "fission" clearly denotes the splitting or breaking of something into smaller pieces. What is the Distinction between Nuclear Fission and Nuclear Fusion? Similarly, when a source of energy (light) splits into quanta or photons, this is referred to as the nuclear fission process. When two highly active atoms collide and fuse to form a larger atom due to the strong inter-atomic force of attraction, this is referred to as nuclear fusion. By considering the following scenario, we can distinguish between nuclear fission and nuclear fusion. The process of nuclear fusion is as opposed to that of nuclear fission. ![]() ![]() ![]() Extraction is a technical term for how much of the coffee’s flavor ends up in the cup. ![]() When you introduce water to coffee, extraction begins. Extractionīefore we begin, we want to make sure you have a good understanding of how coffee brewing works and why coffee tastes the way it does. Why is that? And where do you go from there? Changing elements to your recipe can help you achieve the perfect extraction for your coffee and palate. Some of you may have followed this recipe, done everything right, and ended up with the worst shot you ever had. Of course, Clive’s signature recipe is a 1:1.5 ratio - 20 grams of coffee in, 30 grams out to be pulled between 25 and 30 seconds. This is level two stuff and we have to assume you have a basic understanding of the key components of a recipe: dose, yield, and time. There isn't a one-size-fits-all, magic secret recipe, or guide to a perfect espresso (actually, there is a guide that you should check out prior to reading this) but, there is a recipe for the best espresso that you've ever had and we're here to show you how to do it.įirst, if you haven’t already, check out our blog, Your Guide to Perfect Home Espresso, as this covers the fundamentals and basics of pulling shots and creating a recipe. Welcome - so you're here to discover the perfect espresso recipe, aren't you? Not saying that we tricked you or anything but this isn't exactly an a+b=c type of equation. ![]() ![]() ![]() It’s a good day for learning! Intended for ages 2+ years. Set the hour hand on the desk top clock to explore and practice time concepts. Learning on a sunny Wednesday afternoon? Spin the roller to select the day of the week, then move the weather slider to sunshine. Get creative! Add background music with the included music player featuring 30+ songs and melodies. With fun characters and engaging themes, your child will enjoy learning through play. Flip the desk top up to reveal a chalkboard and easel. Discover the Touch & Learn Activity Desk Deluxe from VTech This user manual provides instructions to help your preschooler learn important skills such as spelling, counting, and the alphabet. Let’s write! Follow the lights to learn to write letters and numbers stroke by stroke with the interactive writing pad and attached stylus. Use the unique projection system with the four color-coded projection reels to trace images and practice drawing or learn about shapes and the human body with the corresponding activity pages. Explore the alphabet, numbers, counting, music, shapes, colors, the human body, clothes and weather. Discover 200+ touch-and-learn spots on five interactive activity pages. : Vtech Activity Desk 1-48 of 141 results for 'vtech activity desk' Results VTech Activity Desk 4-in-1 Pre-Kindergarten Expansion Pack Bundle for Age 2-4 4,590 50+ bought in past week 3679 List: 44.99 90 days FREE Amazon Music. VTech Touch and Learn Activity Desk for 24 months to 48 months Deluxe Expansion Pack - Nursery Rhymes. Product Dimensions - L 36.50 x W 60.80 x H 43.Inspire a love for learning with the pink Get Ready for School Learning Desk™! This 5-in-1 flexible learning center and stool includes an interactive desk top, projector, LED writing pad, chalkboard and art station. Enjoy hours of fun as you create, discover and learn! ![]() Also includes a fun toy phone and music player featuring over 20 songs. The interactive LED display teaches letter and number stroke order. It also transforms from a desk into an easel and blackboard with plenty of storage space for art supplies to encourage play and discovery. The Touch & Learn Activity Desk by VTech is a four-in-one desk that features a writing pad, desk, blackboard and art station! The desk includes an interactive desktop, stylus and 4 double-sided touch pages filled with engaging content including letters, numbers, music, colours and much more. Flip the desktop up to reveal compartments for easy. Easy transformation from easel to blackboard and includes stool The 3-in-1 desk encourages creativity and learning with an interactive desktop, chalkboard and easel.Music player plays over 20 fun pop and classical songs.Toy phone teaches greeting phrases through pretend play.Light up writing pad with stylus for letter & number writing 1-48 of 68 results for 'vtech activity desk cartridges' RESULTS VTech Activity Desk 4-in-1 Pre-Kindergarten Expansion Pack Bundle for Age 2-4 4,461 4446 FREE delivery Mon, Feb 13 Or fastest delivery Thu, Feb 9 More Buying Choices 35.Features interactive desktop and 4 double-sided touch pages that introduce letters, phonics, numbers, body parts, animals, music, shapes, colours, seasons, the classroom, town and more. ![]() Touch, draw, learn and write on the Touch & Learn Activity Desk by VTech. ![]() ![]() ![]() His real light bulb moment, though, was hearing Jai Paul’s ‘BTSTU’ for the first time. It sounds almost too Wikipedia-perfect, but Streten really did start making beats using free software from a box of Nutri-Grain.īefore that auspicious supermarket shop with his Dad, young Harley learned about hardcore trance from his next-door neighbour’s older brother. Here’s the unfolding story of Flume, from teenage amateur to Australia’s biggest electronic act, in 15 key tracks. (This followed a short lived 140-BPM trance phase.)Īfter countless laptop hours, he had something good enough for triple j Unearthed. Nine years ago, Streten was living with his parents on Sydney’s Northern Beaches, channelling his love of Flying Lotus, Shlohmo and Jai Paul into rudimentary beatmaking. It helps, of course, to have his preternatural talent. You know, regular stuff you do in your 20s.įlume’s stratospheric success is now a touchstone for bedroom producers everywhere. ![]() Around those releases, Streten cemented his stardom overseas, playing every festival worth playing, sharing studios with rap royalty and even winning a Grammy for Skin. Those five year gave us Flume’s second album, Skin, two companion EPs, some welcome surprise singles and the Hi This Is Flume mixtape. The homegrown boy wonder last played the festival back in 2014, and a lot has happened since. This October, Harley Streten will fly around the country as Listen Out’s 2019 headliner. Want more Junkee in your life? Sign up to our newsletter, and follow us on Instagram, Twitter and Facebook so you always know where to find us. ![]() ![]() ![]() You can also tell Google to stop recording your voice for good. Luckily, Google introduced a new My Account tool that lets you access your recordings and delete them if you want. Google wants more voice-activated tech, and the company recently released its latest masterpiece, “OK Google.” This serves as Google’s new wake phrase, just like “Alexa” and “Hey Siri,” calling the attention of Google Assistant on Google Home speakers, Android smartphones, and the Chrome browser.Įvery time you use “OK Google” or use another voice-controlled function, your request is recorded and the snippets are saved to your Google account. Here’s the easiest way to turn off “Hey Siri:” Navigate to your iOS device’s Settings > General > Siri, then toggle Allow “ Hey Siri” to off. If you turn this feature on, this means your iPhone’s mic is always listening, waiting for the phrase “Hey Siri.”Īpple says this is processed locally on the device and your iOS device does not start recording your voice until it hears “Hey Siri.” Once your request is recorded, it then uploads the audio file to Apple’s servers for processing.īut that may still give you the willies, and luckily, you don’t have to disable Siri completely to stop the “Hey Siri” feature. With iOS 8, Apple introduced the “Hey Siri” wake phrase, so you can summon Siri without even touching your iPhone. Like the Echo, Siri is always attentive, even when you’ve forgotten your iPhone can hear you. Here are ways to turn off your smartphone’s “always-listening” abilities: What to do to make your phone stop listening to you However, if you’re still concerned about this, I don’t blame you. Who cares if you’re looking for fluffy pillows and ultra-soft bedsheets, right? Privacy dangers exist, of course, but for regular folks, this probably shouldn’t be a cause for big concern. Voice triggering is just yet another available tool, similar to browser cookies and location tracking, they utilize to efficiently target ads. This app voice-tracking technology is certainly scary, but the thing is, all these companies really care about is effective advertising. Since it’s a very effective targeted ad tool, it’s not a surprise if companies are using it. Using voice tracking for marketing purposes is legal because the privacy policies and end-user agreements you agreed with plus current laws actually allow it. ![]() Is listening to you without your knowledge legal? So similar to how virtual assistants work, it’s safe to assume that smartphones listen all the time waiting for the wake word and voice data continuously gets recorded, albeit temporarily, on the gadget itself. If this temporary voice data is not going anywhere, then what’s the problem? In some cases, third-party apps like Facebook or Instagram may still have access to this local data. But without these triggers, your voice inputs are processed only within your smartphone and are not sent anywhere, so say the manufacturers. These wake words are required for your smartphone to actually start recording. Your smartphone is similar to smart speakers like the Amazon Echo and Google Home - they listen for “wake” words like “Hey Siri” and “Okay Google” all the time. Your voice triggers smart speakers and smartphones Apps installed on smartphones have the ability to record your screen and whatever you type, including user names and passwords. ![]() They weren’t able to prove or disprove whether our phones are listening (they found no evidence of recorded conversations), but they make an unexpected finding. The Verge’s article got a lot of press and even inspired more scientific studies to test the secret listening abilities of smartphones.Ī group of researchers from Northeastern University tested the theory. ![]() ![]() ![]() Know someone who has birthday on 1 st April? You couldnt get luckier! Send your friend a birthday gift this April fools day.The next time they turn their screen on dont forget to notice their reaction! All you need is to get your hands on their phone and you can download the broken screen wallpaper and put it on. This easy prank is not only limited to your friends but you can play it smartly with your friends and family. The cracked screen can send shivers down everyones spine.This prank works great on your significant other too. As they see those three dots anxiously jumping on their screen they will be sitting straight to let you finish what you want to say. If you dont have it then download the ˜Texting Dots gifs from google and send it to them. ![]() ![]() Text you friend ˜We need to talk and as soon as they respond send them the texting dots GIF. Whats the one message that could get everyone riled up with anxiety? We need to talk! This simple text message can remind a person of their worst mistakes and horror dreams.So when your friend texts you on 1 st of April for a cup of coffee ask them ˜Who is this? pretending you dont know the person they are texting will obviously make them second guess the number they have typed. The basic rule to get out of such stood-up meetups pranks on your friends is to play a prank back on them. Starting with a rather basic and harmless one, how about you wait for your best friend to text you randomly? Maybe they are texting you to invite for a coffee and then not show up.Visit: Shein Coupon Code April Fools Pranks for Friends Those pushing your friend in the pool and pasting the ˜Slap me poster on their back is kind of unlikely to happen because of all the social distancing but who says you cannot prank them on the phone? And making the best of April fools pranks this year lets start with some basic ideas to prank your friends on the phone and other creative ways too. Well, we arent sure if he really said that or not after all its April fools day! Just kidding it is a real quote and it fits perfectly to the occasion. As a famous April fools quote goes: Everything is Funny As long as it is happening to somebody else- Will Rogers. Why wouldnt we? All Hail, its national prank day. And to add a little fun and spice we have gathered some silly and fun pranks for you. Even if you are adamant enough to play a fun prank on your siblings or buddy make sure to keep it harmless. Sure some of the April fool ideas didnt go well but thats no reason to stop being fun altogether. ![]() ![]() ![]() Demosthenes (384 BC–322 BC) complained that the need to use pebbles for calculations was too difficult. ![]() The earliest archaeological evidence for the use of the Greek abacus dates to the 5th century BC. The original is marble and is held by the National Museum of Epigraphy, in Athens. Greece An early photograph of the Salamis Tablet, 1899. ![]() Under the Parthian, Sassanian, and Iranian empires, scholars concentrated on exchanging knowledge and inventions with the countries around them – India, China, and the Roman Empire- which is how the abacus may have been exported to other countries. Persia Īt around 600 BC, Persians first began to use the abacus, during the Achaemenid Empire. However, wall depictions of this instrument are yet to be discovered. Archaeologists have found ancient disks of various sizes that are thought to have been used as counters. He wrote that the Egyptians manipulated the pebbles from right to left, opposite in direction to the Greek left-to-right method. Greek historian Herodotus mentioned the abacus in Ancient Egypt. It is the belief of Old Babylonian scholars, such as Ettore Carruccio, that Old Babylonians "seem to have used the abacus for the operations of addition and subtraction however, this primitive device proved difficult to use for more complex calculations". Some scholars point to a character in Babylonian cuneiform that may have been derived from a representation of the abacus. It held a table of successive columns which delimited the successive orders of magnitude of their sexagesimal (base 60) number system. The Sumerian abacus appeared between 27 BC. The user of an abacus is called an abacist. ![]() īoth abacuses and abaci are used as plurals. Greek ἄβαξ probably borrowed from a Northwest Semitic language like Phoenician, evidenced by a cognate with the Hebrew word ʾābāq ( אבק), or "dust" (in the post-Biblical sense "sand used as a writing surface"). While the table strewn with dust definition is popular, some argue evidence is insufficient for that conclusion. Alternatively, without reference to ancient texts on etymology, it has been suggested that it means "a square tablet strewn with dust", or "drawing-board covered with dust (for the use of mathematics)" (the exact shape of the Latin perhaps reflects the genitive form of the Greek word, ἄβακoς ( abakos)). The Latin word is derived from ancient Greek ἄβαξ ( abax) which means something without a base, and colloquially, any piece of rectangular material. The word abacus dates to at least AD 1387 when a Middle English work borrowed the word from Latin that described a sandboard abacus. Others may use an abacus due to visual impairment that prevents the use of a calculator. The abacus remains in common use as a scoring system in non- electronic table games. Merchants, traders, and clerks in some parts of Eastern Europe, Russia, China, and Africa use abacuses. Some of these methods work with non- natural numbers (numbers such as 1.5 and 3⁄ 4).Īlthough calculators and computers are commonly used today instead of abacuses, abacuses remain in everyday use in some countries. Any particular abacus design supports multiple methods to perform calculations, including addition, subtraction, multiplication, division, and square and cube roots. The abacus is still used to teach the fundamentals of mathematics to children in most countries.ĭesigns such as the Japanese soroban have been used for practical calculations of up to multi-digit numbers. In the ancient world, particularly before the introduction of positional notation, abacuses were a practical calculating tool. Abacuses are still made, often as a bamboo frame with beads sliding on wires. Later the beads were made to slide on rods and built into a frame, allowing faster manipulation. In their earliest designs, the rows of beads could be loose on a flat surface or sliding in grooves. One of the two numbers is set up, and the beads are manipulated to perform an operation such as addition, or even a square or cubic root. It consists of rows of movable beads, or similar objects, strung on a wire. The exact origin of the abacus has not yet emerged. It was used in the ancient Near East, Europe, China, and Russia, millennia before the adoption of the Hindu-Arabic numeral system. The abacus ( plural abaci or abacuses), also called a counting frame, is a calculating tool which has been used since ancient times. There was keen competition between the two from the introduction of the Algebra into Europe in the 12th century until its triumph in the 16th. The woodcut shows Arithmetica instructing an algorist and an abacist (inaccurately represented as Boethius and Pythagoras). For the medieval book, see Liber Abaci.Ĭhinese abacus Calculating-Table by Gregor Reisch: Margarita Philosophica, 1503. ![]() |
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