• The Leibniz wheel was used in many calculating machines for 200 years, and into the 1970s with the Curta hand calculator, until the advent of the electronic calculator in the mid-1970s. (wikipedia.org)
  • I saw my first Curta Calculator for the first time (online of course) a few months ago and fell in love with the complexity and wonder of this little machine. (curta.org)
  • I am now a proud owner of a Curta Type II calculator made in 1957 and I LOVE this thing! (curta.org)
  • I even found myself pulling up my calculator on the computer and thinking 'wait a minute what the heck am I doing' followed by me promptly closing the program and finding my Curta for a simple addition problem. (curta.org)
  • In the mid-twentieth century the handheld Curta mechanical calculator became available which also competed in convenience and price. (wikipedia.org)
  • Four predictors of the need for KRT were identified using GAM: need for mechanical ventilation, male sex, higher creatinine at hospital presentation and diabetes. (bvsalud.org)
  • 300, or need for mechanical ventilation), median transfusion at day 9 after symptom onset, 100% seropositivity, and 35% requiring hemodialysis at enrollment. (cdc.gov)
  • The production of mechanical calculators came to a stop in the middle of the 1970s closing an industry that had lasted for 120 years. (wikipedia.org)
  • The production of mechanical calculators was stopped world-wide . (w-hasselo.nl)
  • A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically, or (historically) a simulation such as an analog computer or a slide rule. (wikipedia.org)
  • The first known workable mechanical calculating machine is invented by Germanys Wilhelm Schickard. (timetoast.com)
  • Those machines, which we know as mechanical calculators , have a lot of metal gearwheels and are designed to perform the basic operations of arithmetic only. (w-hasselo.nl)
  • Pascal's calculator (also known as the arithmetic machine and later as the Pascaline) is a mechanical calculator invented by Blaise Pascal in the early 17th century.He designed the machine to add and subtract two numbers directly and to perform multiplication and division through repeated addition or subtraction. (timetoast.com)
  • The first one was an automatic mechanical calculator, his difference engine, which could automatically compute and print mathematical tables. (wikipedia.org)
  • Is the patient's day of life (where date of birth = day of life 1) less than 30 days on the Mechanical Ventilation Start Date? (cdc.gov)
  • OBJECTIVES: To assess outcomes, including in-hospital mortality, electrocardiographic abnormalities, hospital length-of-stay, admission to the intensive care unit, and need for dialysis and mechanical ventilation, in hospitalized COVID-19 patients who received chloroquine or hydroxychloroquine, and to compare outcomes between those patients and their matched controls. (bvsalud.org)
  • but, in general, mechanical ventilation should be considered when there are clinical or laboratory signs that the patient cannot maintain an airway or adequate oxygenation or ventilation. (msdmanuals.com)
  • The decision to initiate mechanical ventilation should be based on clinical judgment that considers the entire clinical situation and not simple numeric criteria. (msdmanuals.com)
  • However, mechanical ventilation should not be delayed until the patient is in extremis. (msdmanuals.com)
  • In mechanical ventilation, the pressure gradient results from increased (positive) pressure of the air source. (msdmanuals.com)
  • Step 4: Click the "calculate" button and the storage capacity calculator will determine the maximum volume of liquid that the tank can hold. (calculatorsedge.com)
  • The Rod Load Calculator employs a particular equation to calculate the load on a rod, also known as compression rod load (CRL). (calculatorshub.net)
  • The world's smallest mechanical parallel calculator. (ethz.ch)
  • The aerospace and aviation industries rely heavily on these calculators to predict the performance of their propulsion systems, and the energy and power industries use Eckert number calculations to optimize their thermodynamic processes. (calculatorsedge.com)
  • To make these thermal expansion calculations easy, I created an online Thermal Expansion Calculator. (mechanicalpost.site)
  • However, for scientific calculations the Fuller remained viable until 1973 when it was made obsolete by the HP-35 handheld scientific electronic calculator. (wikipedia.org)
  • Alright, to be clear I love my overpriced TI-84 plus, but for studying and for just calculations I do outside of class I was wondering if there was a piece of software/physical calculator that is far more effective than the TI series calculators. (reddit.com)
  • It is considered to be the first electro-mechanical binary programmable computer, and the first really functional modern computer. (timetoast.com)
  • It used a stepped drum, built by and named after him, the Leibniz wheel, was the first two-motion calculator, the first to use cursors (creating a memory of the first operand) and the first to have a movable carriage. (wikipedia.org)
  • Leibniz was also the first to promote the idea of an Pinwheel calculator. (wikipedia.org)
  • Given the material properties of a unidirectional lamina, this calculator constructs the stiffness matrix [ C ] and the compliance matrix [ S ] of the lamina in the principal directions. (efunda.com)
  • Q: What is the best cheap mechanical keyboard? (bel-india.com)
  • A: Best Mechanical Keyboard Under$50: Redragon K552 KUMARA Mechanical Keyboard. (bel-india.com)
  • EagleTec KG011 Mechanical Gaming Keyboard. (bel-india.com)
  • Redragon K551 Mechanical Gaming Keyboard. (bel-india.com)
  • AUKEY Mechanical Keyboard. (bel-india.com)
  • PICTEK TKL Mechanical Gaming Keyboard. (bel-india.com)
  • Q: What is the best switch for a mechanical keyboard? (bel-india.com)
  • A: The Cherry MX Blue mechanical switches are among the best for typing, and the individually backlit keys ensure you can see this keyboard even in pitch black conditions. (bel-india.com)
  • Join us on our brand-new LinkedIn page, established today, and let's build an incredible community dedicated to and driven by mechanical engineers like you! (mechanicalpost.site)
  • The current exhibition focuses on the first electronic calculators with the 4 basic functions that present a curious emergence of evolutionary diversity, which over time converged on the standards that we now know (see the list of thematic content of each of the showcases in the post end part). (hpmuseum.org)
  • For next year 2022, celebrating the 50th anniversary of the first scientific pocket calculator, HP-35, part of the content will be renewed an expanded with the new central motif of scientific calculators from the period 1972-1995. (hpmuseum.org)
  • The thermal expansion calculator works for common engineering materials like metals, plastics, ceramics, and more. (mechanicalpost.site)
  • We currently has around 200+ calculators and converters to help you with all the problems in areas such as finance, health, engineering, physics etc. (calculatorsedge.com)
  • In the world of mechanical and petroleum engineering, computations are integral. (calculatorshub.net)
  • The calculator uses a specific formula to determine the load on a rod, a fundamental metric in various engineering applications. (calculatorshub.net)
  • The Rod Load Calculator has a broad spectrum of applications, especially in the fields of mechanical and petroleum engineering. (calculatorshub.net)
  • The Rod Load Calculator is used to compute the compression load on a rod in various engineering applications, like machinery operation, oil extraction, and building structures. (calculatorshub.net)
  • The Rod Load Calculator is an invaluable tool in engineering fields, particularly mechanical and petroleum engineering. (calculatorshub.net)
  • The following Engineering calculator will show the plus and minus tolerance for the specific ISO 286 Shaft tolerance data. (engineersedge.com)
  • We wonder if the authors can reanalyze their data by using the treatment benefit calculator ( https://covid-convalescentplasma-tbi-calc.org ) ( 4 ) to gain more insight into whether a small subset of patients benefited from CCP. (cdc.gov)
  • Two decades after Schickard's supposedly failed attempt, in 1642, Blaise Pascal decisively solved these particular problems with his invention of the mechanical calculator. (wikipedia.org)
  • Program for solving mechanical equations for movements. (macupdate.com)
  • Newton-II is a program for solving mechanical equations of motions numerically. (macupdate.com)
  • Most mechanical calculators were comparable in size to small desktop computers and have been rendered obsolete by the advent of the electronic calculator and the digital computer. (wikipedia.org)
  • In 1961, a comptometer type machine, the Anita Mk VII from Sumlock comptometer Ltd., became the first desktop mechanical calculator to receive an all-electronic calculator engine, creating the link in between these two industries and marking the beginning of its decline. (wikipedia.org)
  • This is hard to imagine, now we have so much nice electronic gadgets, like smart phones, where a calculator is only an app, or an additional feature . (w-hasselo.nl)
  • Since the nineteen seventies, electronic components are successfully applied in calculators . (w-hasselo.nl)
  • Such a display would be useful for either mechanical or electronic television in natural colors…The calculator allows many types of LEDs to work in the display. (martindalecenter.com)
  • The exhibition displays a part of the collection of more than 500 unique electronic calculators that have been researched, documented and compiled over the last few years. (hpmuseum.org)
  • To complete the outlook and technological evolution, it also includes scientific desktop models and exemplars of the most popular mechanical calculators, applied to accounting and scientific task, which still coexisted with electronic ones for a short time. (hpmuseum.org)
  • Around 1963, advances in electronic technology made it practical to build and market an electronic desktop calculator. (oldcalculatormuseum.com)
  • Out of its case the calculator weighs about 900 grams (32 oz). (wikipedia.org)
  • To determine the maximum volume of liquid a cylindrical tank can hold, you will need to use a storage capacity calculator. (calculatorsedge.com)
  • What is a storage capacity calculator for cylindrical tanks? (calculatorsedge.com)
  • Using a storage capacity calculator for cylindrical tanks is easy. (calculatorsedge.com)
  • By using a storage capacity calculator, you can easily determine the maximum volume of liquid that a cylindrical tank can hold based on its dimensions. (calculatorsedge.com)
  • The Fuller calculator, sometimes called Fuller's cylindrical slide rule, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. (wikipedia.org)
  • In essence, the calculator consists of three separate hollow cylindrical parts that can twist and slide over each other about a common axis without any tendency to slip. (wikipedia.org)
  • This thermal expansion calculator allows you to quickly estimate the growth in length, volume, or area for a material given the temperature change. (mechanicalpost.site)
  • Consumer visitors to noritz.com can link to the online calculator, free of charge, right from the Noritz Home Page. (mechanical-hub.com)
  • Weather Calculator is a fully featured calculator which provides calculation in the area of weather. (slideme.org)
  • During my PhD, one of the strategies I found to create mechanical bits is to make defect beams in the material. (universiteitleiden.nl)
  • Our platform provides you with fast, convenient and online calculators and conversions for a wide range of functions. (calculatorsedge.com)
  • It was 'the' obvious directions the calculator- and the nascent computer industry developed and was heading to. (w-hasselo.nl)
  • PhD candidate Jiangnan Ding explores how you can design a thick slab of rubber in a way that it might act as a mechanical computer bit. (universiteitleiden.nl)
  • That makes it the starting point of a very basic mechanical computer. (universiteitleiden.nl)
  • Such a mechanical computer will probably never outperform a regular one. (universiteitleiden.nl)
  • IBM co-develops its first computer, the Automated Sequence Controlled Calculator aka Mark I, with Harvard University. (timetoast.com)
  • I even had a DigiComp, a mechanical computer," he says. (oakland.edu)
  • These calculators can be accessed via different websites, and they require inputs that vary depending on the type of fluid flow being considered. (calculatorsedge.com)
  • An Eckert number calculator is a tool that is specifically designed to help in determining the Eckert number of a given flow system. (calculatorsedge.com)
  • In 2013, TBS software (Med-Imap SA TBS Calculator version 2.1.0.2) was used to estimate the trabecular bone scores for individual lumbar vertebra (L1-L4), as well as an overall TBS score for the total lumbar spine, in adults aged 20 years and older with nonmissing body mass index (BMI) data. (cdc.gov)
  • [ 16 ] However, the use of mechanical means of prophylaxis alone is not effective in moderate or high-risk cases. (medscape.com)
  • The more than 6.5 million surgical records in this database have helped create surgical risk calculators and have led to improvements in perioperative care for cardiac surgery patients. (medscape.com)
  • Bio-mechanical risk factors for uterine prolapse among women living in the hills of west Nepal: a case-control study. (cdc.gov)
  • His machine was composed of two sets of technologies: first an abacus made of Napier's bones, to simplify multiplications and divisions first described six years earlier in 1617, and for the mechanical part, it had a dialed pedometer to perform additions and subtractions. (wikipedia.org)
  • This calculator requires JavaScript to run. (cdc.gov)
  • This calculator estimates the time for a long, water-filled pipe or tube (with no flow) to reach the freezing temperature. (wbdg.org)
  • Calculator does not screen for material temperature limitations - Use caution. (wbdg.org)
  • All you need are the dimensions of the tank and the calculator will do the rest. (calculatorsedge.com)
  • This calculator preceded Hewlett-Packard's desktop machines, and was the first to use RPN. (oldcalculatormuseum.com)
  • Welcome to my 'Mechanical Calculator' web site . (w-hasselo.nl)
  • The technology revolutions in accounting and auditing are leading to less mechanical work for people in these areas and more creative work," Dr. Nehmer says. (oakland.edu)
  • Click here, enter your current salary, and our handy-dandy calculator will tell you how much you'd be making today if ordinary incomes had gone up as fast as the top 1 percent. (motherjones.com)
  • Growing up, his family would often gift him with various types of mechanical calculators and abacuses. (oakland.edu)
  • Step 3: Enter the diameter and height measurements of the tank into the storage capacity calculator. (calculatorsedge.com)
  • This article is a set of recollections about a very significant product in the history of calculators. (oldcalculatormuseum.com)
  • What's the best scientific calculator/program? (reddit.com)
  • Just a super-calculator program I guess. (reddit.com)
  • Guide for those interested in becoming a mechanical engineer. (efunda.com)
  • The author, Nicholas Bodley, was one of the original eight technicians to be trained at the factory on this calculator. (oldcalculatormuseum.com)
  • With a solid grasp of its formula, variables, and practical applications, you can make the most of this calculator, leading to effective decision-making and optimized system performance. (calculatorshub.net)
  • The calculators collection focuses on "pocket calculators" of the period 1969-1992, (including the Pocket Computers from the 80s), both for general and scientific use. (hpmuseum.org)
  • Photos of a my collection of mechanical calculators. (w-hasselo.nl)