Paul Lockhart’s Mathematician’s Lament outlined how we introduce math to students in the wrong way. Measurement explains how math should be done. With plain English and pictures, Lockhart makes complex ideas about shape and motion intuitive and graspable, and offers a solution to math phobia by introducing us to math as an artful way of thinking and living.In conversational prose that conveys his passion for the subject, Lockhart makes mathematics accessible without oversimplifying. He makes no more attempt to hide the challenge of mathematics than he does to shield us from its beautiful intensity. Favoring plain English and pictures over jargon and formulas, he succeeds in making complex ideas about the mathematics of shape and motion intuitive and graspable. His elegant discussion of mathematical reasoning and themes in classical geometry offers proof of his conviction that mathematics illuminates art as much as science.Lockhart leads us into a universe where beautiful designs and patterns float through our minds and do surprising, miraculous things. As we turn our thoughts to symmetry, circles, cylinders, and cones, we begin to see that almost anyone can “do the math” in a way that brings emotional and aesthetic rewards. Measurement is an invitation to summon curiosity, courage, and creativity in order to experience firsthand the playful excitement of mathematical work. Read more

This book provides the new healthcare data analyst with useful information on a wide range of analytic methods as applied specifically to healthcare data. Topics include data quality, basic measures of cost and utilization, risk-adjustment and benchmarking, groupers and machine learning models Read more

Linear Regression & CorrelationIf you are looking for a short beginners guide packed with visual examples, this book is for you.Linear Regression is a way of simplifying a group of data into a single equation.  For instance, we all know Moore’s law: that the number of transistors on a computer chip doubles every two years. This law was derived by using regression analysis to simplify the progress of dozens of computer manufacturers over the course of decades into a single equation.   Correlation is a way of calculating how much two sets of numbers change together.  In addition to being part of the regression analysis, correlation is heavily used in investment industries, for instance, to determine if two stocks are likely to change value together or independently.This book goes through how to calculate correlation and linear regression and works through multiple examples of how to do it.  Just as importantly, this book is loaded with visual examples of what correlation is and how to use linear regression. This book doesn't assume that you have prior in-depth knowledge of statistics or that you regularly use an advanced statistics software package.  If you know what an average is and can use Excel, this book will build the rest of the knowledge, and do so in an intuitive way. This Is Not A TextbookThe reason I wrote this book is that there are not a lot of good examples out there of how to do multiple regression, which is regression analysis between more than two variables.  I checked half a dozen different sources, including several textbooks, on how to do multiple regression. In each case, the source had a lot of information; in some cases dozens of pages; on how to do the data preparation,  how to interpret results, and potential problems to watch out for, but to actually do the multiple regression calculation, they all said to use a software package, like Matlab or Minitab.To put it a different way, those sources are a lot like a driver’s education class teaching you about setting the mirrors, adjusting the seat, and fastening the safety belt - but just when you think you are finally ready to actually start the car and put it in gear, they tell you to take the bus.This book is different. It does not spend much time on the niceties of exactly how you should scrub your data, and instead just shows how to do the calculations, with examples.  This book is more like Grandpa showing you how to actually drive the old pickup truck from the farmhouse to the barn so you can get some work done.What Is In This Book?There are a number of examples shown in this book, they includeHow to do a correlation calculationAn example of correlation on the stock price of 10 different big-name stocks, such as Coke and PepsiHow having uncorrelated investments can give you better returns at lower risk.How to do linear regression with two variablesHow to do multiple linear regression with any number of independent variablesA regression analysis to predict the number of viewers in future episodes of the television show ‘Modern Family’How to evaluate the quality of your regression analysis using R-squared or adjusted R-squaredHow to do regression on exponential data, and recreate Moore’s lawIf you are a visual learner and like to learn by example, this intuitive book might be a good fit for you. Regression and Correlation are fascinating topics. They are very important tools that are used in data analysis throughout a wide-range of industries - so take an easy dive into the topic with this visual approach! Read more

Learn How To Use All The Functions On Your Multimeter!!You are about to discover how to really use your Multimeter Settings! Its seems there is a lot of confusion on how to use a Multimeter now adays, so this book was created to demystify exactly that! Filled with picture examples and jam packed with helpful tips and tricks that are sure to increase your understanding of all the functions. Now in a new revised edition with new illustrations and explanation!! Here Is A Preview Of What You'll Learn...Chapter 1: Introduction To Multi-meters: Manual, Auto Ranging and Analog Chapter 2: Voltage DC & AC Chapter 3: Amperage DC & AC Chapter 4: Resistance, Continuity, Diode and Capacitance Function Chapter 5: Hz & Duty Cycle Chapter 6: Temperature Chapter 7: Graphing Multimeters and Uses Chapter 8: Multimeter Accuracy and Choosing the Right Meter Chapter 9: Miscellaneous Electrical Tips And Tricks &Much, much more!Also Available in Ebook Format. Order Your Copy Today! Now In A New REVISED EDITION Created From Customer Comments and Demands. Take Action And Learn How To Use A Multimeter Fast!! Read more

Learn To Test Electrical Circuits Like A Pro FAST!!You’re about to discover how to never again misdiagnose any problem and fix it right the first time!Filled with picture examples and jam packed with helpful tips and tricks that are sure to help you diagnose the problem faster. This book will show you how to refine your testing skills as an Electrician or Technician using all the best testing methods!! Now in a new revised edition filled with new illustrations and explanation!! Here Is A Preview Of What You'll Learn...Chapter 1: Important Things To Remember Before Starting Diagnosis Chapter 2: Voltage Testing Like a Pro Chapter 3: Open Circuit Testing Chapter 4: Resistance Problem Testing Using The Voltmeter Chapter 5: Miscellaneous Electrical Tricks And Diagnostic Tips &Much, much more!Also Available in Ebook Format. Download Your Copy Today! And You Too Can Get Started In Testing Electrical Circuit Like A Pro!! Read on your PC, Mac, smart phone, tablet or Kindle device. Read more

Learn How To Find Any Kind Of Electrical Shorts On Cars, Motorcycles, Households And Industrial Electrical Systems Fast!!!You’re about to discover the different kinds of electrical shorts there are as well as how to test and find them fast!! Filled with more picture examples and jam packed with helpful tips and tricks to help you diagnose the Electrical Short faster. Now in a new revised edition with new illustrations and explanation!!Here Is A Preview Of What You'll Learn...Chapter 1: Electrical Shorts Chapter 2: Finding Shorts To Ground Chapter 3: Finding Shorts to Power Chapter 4: AC Circuit Shorts&Much, much more!Also Available in Ebook Format. Download your copy today!! Read on your PC, Mac, smart phone, tablet or Kindle device. Read more

2022 NATIONAL INDIE EXCELLENCE AWARDS WINNER — HISTORY: GENERAL ". . . inherently interesting, unique, and highly recommended addition to personal, professional, community, college, and academic library Physics of Time & Scientific Measurement history collections, and supplemental curriculum studies lists.” —Midwest Book Review "A wonderful look into understanding and recording time, Orzel’s latest is appropriate for all readers who are curious about those ticks and tocks that mark nearly every aspect of our lives." —Booklist “A thorough, enjoyable exploration of the history and science behind measuring time.” —Foreword Reviews It’s all a matter of time—literally. From the movements of the spheres to the slipperiness of relativity, the story of science unfolds through the fascinating history of humanity’s efforts to keep time. Our modern lives are ruled by clocks and watches, smartphone apps and calendar programs. While our gadgets may be new, however, the drive to measure and master time is anything but—and in A Brief History of Timekeeping, Chad Orzel traces the path from Stonehenge to your smartphone. Predating written language and marching on through human history, the desire for ever-better timekeeping has spurred technological innovation and sparked theories that radically reshaped our understanding of the universe and our place in it. Orzel, a physicist and the bestselling author of Breakfast with Einstein and How to Teach Quantum Physics to Your Dog continues his tradition of demystifying thorny scientific concepts by using the clocks and calendars central to our everyday activities as a jumping-off point to explore the science underlying the ways we keep track of our time. Ancient solstice markers (which still work perfectly 5,000 years later) depend on the basic astrophysics of our solar system; mechanical clocks owe their development to Newtonian physics; and the ultra-precise atomic timekeeping that enables GPS hinges on the predictable oddities of quantum mechanics. Along the way, Orzel visits the delicate negotiations involved in Gregorian calendar reform, the intricate and entirely unique system employed by the Maya, and how the problem of synchronizing clocks at different locations ultimately required us to abandon the idea of time as an absolute and universal quantity. Sharp and engaging, A Brief History of Timekeeping is a story not just about the science of sundials, sandglasses, and mechanical clocks, but also the politics of calendars and time zones, the philosophy of measurement, and the nature of space and time itself. For those interested in science, technology, or history, or anyone who’s ever wondered about the instruments that divide our days into moments: the time you spend reading this book may fly, and it is certain to be well spent. Read more

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It’s time to GENERATE your own ELECTRICITY!About this book...Are you ready to start building your incredible solar powered electricity generating system in your own home, boat or RV?Are you fed up with increasing charges on your electricity bills?Do you want to create a more environmentally friendly system in your home and reduce your family’s carbon footprint?KEEP READING! This book was written to provide exact and reliable information to get you started on building your own fully functioning and energy efficient solar powered generating system.For most home users, the electricity grid is the most convenient source of electricity. It appears that a serious blackout or power outage is still in the distant future. However, growing concern about fossil fuel depletion is prompting authorities around the world to use renewable energy sources. Since solar energy is the most commercialized among other renewable energies, it is necessary to know how you, as end-users in residential areas, can benefit from solar energyIncluded in this book…FIND OUT HOW SOLAR ENERGY WORKS SELECTION OF A SOLAR ENERGY SYSTEM WHAT IS A SOLAR SYSTEM? DIY SOLAR PANELS FOR HOME USE: ELIMINATES HIGHER BILLS DIY SOLAR POWER SYSTEM COMPONENTS INSTALLATION OF A SOLAR PANEL ON-BOARD YOUR BOAT SOLAR ENERGY FOR YOUR MOTORHOME ALTERNATIVE POWER SUPPLY FOR CAMPERS THINGS TO KNOW ABOUT RV SOLAR POWER Although there are many books available at the moment, this book is different because it really takes you into the principles, terminology, equipment needed and in-depth analysis of the solar-powered generating systems in place today and how you can build your own.Are you ready to get started on your own incredible solar powered electricity generating system for your home, RV or boat?If the answer is YES…Order Now! Scroll up and click “Buy NOW with 1-click” and download YOUR Copy TODAY! Read more

This text presents readers with an engaging while rigorous manual on the use of oscilloscopes in laboratory and field settings. It describes procedures for measuring and displaying waveforms, gives examples of how this information can be used for repairing malfunctioning equipment and developing new designs, and explains steps for debugging pre-production prototypes. The book begins by examining how the oscilloscope displays electrical energy as traces on X and Y co-ordinates, freely transitioning without loss of information between time and frequency domains, in accordance with the Fourier Transform and its modern correlate, the Fast Fourier Transform. The book continues with practical applications and case studies, describes how oscilloscopes are used in diagnosing pulse width modulation (PWM) problems--looking at serial data streaming and analyzing power supply noise and premises power quality issues—and emphasizes the great functionality of mixed-signal as opposed to mixed-domain oscilloscope, and earlier instruments. Featuring many descriptions of applications in applied science and physics, Oscilloscopes: A Manual for Students, Engineers, and Scientists is ideal for students, faculty, and practitioners. Read more

The intriguing tale of why the United States has never adopted the metric system, and what that says about us.The American standard system of measurement is a unique and odd thing to behold with its esoteric, inconsistent standards: twelve inches in a foot, three feet in a yard, sixteen ounces in a pound, one hundred pennies to the dollar. For something as elemental as counting and estimating the world around us, it seems like a confusing tool to use. So how did we end up with it?Most of the rest of the world is on the metric system, and for a time in the 1970s America appeared ready to make the switch. Yet it never happened, and the reasons for that get to the root of who we think we are, just as the measurements are woven into the ways we think. John Marciano chronicles the origins of measurement systems, the kaleidoscopic array of standards throughout Europe and the thirteen American colonies, the combination of intellect and circumstance that resulted in the metric system's creation in France in the wake of the French Revolution, and America's stubborn adherence to the hybrid United States Customary System ever since. As much as it is a tale of quarters and tenths, it is a human drama, replete with great inventors, visionary presidents, obsessive activists, and science-loving technocrats.Anyone who reads this inquisitive, engaging story will never read Robert Frost's line “miles to go before I sleep” or eat a foot-long sub again without wondering, Whatever happened to the metric system? Read more

The fascinating stories behind the essential seven units of measurement that allow us to understand the physical world  “Entertaining popular science and a literate tale of why things are as they are.”—Kirkus Reviews   From the beginning of history, measurement has been interwoven into the human experience, shaping our understanding of nature, personal relationships, and the supernatural. We measure the world to know our past, comprehend the present, and plan the future.   Renowned physicist Piero Martin explores how scientific knowledge is built around seven key pillars of measurement: the meter for length; the second for time; the kilogram for mass; the kelvin for temperature; the ampere for electricity; the mole for quantity of substance; and the candela for luminous intensity. Martin examines the history and function of these units and illustrates their applications in rich vignettes on a range of topics—from quarks to black holes, from a glass of wine to space exploration. He delves into not only the all-important numbers but also anecdotes that underline each unit’s special quality. At the same time, he explains how each unit contributes to important aspects of science, from classical physics to quantum mechanics, from relativity to chemistry, from cosmology to elementary particle physics, and from medicine to modern technology. Martin eloquently shows how the entire universe can be measured and understood using just seven units. Read more

The most authoritative text for technical mathematics is now better than ever! Completely revised and updated, this new edition of a classic best seller provides the algebraic, geometric, and trigonometric concepts essential to solving problems commonly encountered in technical and trade occupations. Technical Shop Mathematics begins with a review of arithmetic followed by elements of measurement, algebra, graphing, geometry, and introductory trigonometry. Clearly written practical explanations, problem solving techniques, examples, and exercises are provided throughout with emphasis placed on applications—making it an ideal textbook for lecture courses or a resource for guided self-paced study. It has become a standard on-the-job reference for shop professionals.  Contains a larger, easier to read two-color format with improved flow between topics.Provides clear explanations that build on the strengths which have made this book a standard for more than 25 years.Includes an introduction to Statistics which is needed for many technical trades and not offered in most similar texts.Presents sufficient material for a very full one-semester course or for two standard lecture courses. Read more

Most Americans think learning the metric system is difficult, when it's surprisingly easy. Whether you're learning the metric system for school, work, travel, or just to know, Learning the Metric System: Walks you through learning the metric prefixes.Shows you how to conceptualize metric weights and measures.Shows you how to convert between metric and customary units.Gives a brief history of how and why the metric system and US weights and measures came to be.Looks at past efforts of the US to adopt the metric system,Nearly 7 billion people have learned the metric system. So can you. Read more

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Have you ever looked at the inside of an electronic gadget and thought, "How does this actually work?" It's easy to feel like electronics are some kind of complicated mystery, full of invisible signals doing who-knows-what. But what if I told you there's a tool that lets you actually see those signals? It's true!I created this book to take away the confusion around one of the most useful tools in electronics: the oscilloscope. Maybe you've heard of it, maybe you haven't. Either way, if you're interested in understanding how electronic circuits behave, or if you're working with electronics and need to figure out what's going on, this book is for you. It's designed to be straightforward and easy to follow, even if you're completely new to the world of electronic testing equipment. Think of it as your friendly introduction to understanding the language of electricity, visualized as waveforms. I'll guide you through the basics, step-by-step, so you can confidently use an oscilloscope to see what's happening inside your circuits.Here are some things you’ll gain from going through this book:You will get a solid grasp on the fundamental ideas behind waveform analysis. No complicated jargon, just clear explanations of what it all means.You will learn, in plain English, how to actually set up an oscilloscope and use its main controls. I break it down into simple steps so it’s not intimidating.You will be able to look at different kinds of waveforms and understand what they are telling you about the signals in your circuits. This is key to diagnosing problems and understanding performance.You will develop the ability to use an oscilloscope to troubleshoot common issues in electronic circuits. Stop guessing and start seeing what's really happening.You will build real confidence in using an oscilloscope, moving from feeling confused to feeling capable and in control.You will build a strong starting point for further learning in electronics and circuit design. This knowledge is a stepping stone to even more advanced skills.Learning to use an oscilloscope isn't as difficult as it might seem. With the right guidance, you can absolutely learn to use this instrument effectively. This book provides that guidance. I believe anyone with a bit of curiosity and a desire to learn can master the basics. You don't need to be a genius or have years of experience. You just need clear, accessible instruction, and that's exactly what I've aimed to provide. You'll be surprised at how quickly you can start making sense of waveforms and gaining insights into your electronic projects.Ready to start seeing the signals? If you're looking to unlock the power of the oscilloscope and understand the hidden world of electronic waveforms, then get your hands on this book and begin your journey today! Read more

"10-Minute Science Experiments for Kids: Fun and Easy STEM Projects to Do at Home" is your gateway to sparking curiosity and fostering a love for science in kids aged 6 to 12! Bursting with 35 exciting and quick experiments, this book transforms your home into a hands-on learning lab. Watch an egg magically float, create fizzing apple slices, turn cabbage juice into a color-changing pH indicator, or make butter in a jar, all with simple household items. Explore the power of air with a self-inflating balloon and balloon-powered car, make marshmallows explode, create an elephant toothpaste eruption, or turn a lemon into a fizzy volcano. Discover color explosions in milk, write secret messages with lemon juice, and even make homemade ice cream in a bag! Each experiment takes 10 minutes, teaching key STEM concepts while creating lasting memories. Perfect for budding scientists, this book makes learning fun, easy, and incredibly engaging! Read more

Book Hardness testing methods: Brinell, Rockwell, Vickers. Book 1 is devoted to practical work on determining the hardness of materials and contains a detailed description of the three main measurement methods - Brinell, Rockwell and Vickers. The first chapter describes the Brinell method for determining steel hardness in accordance with ISO 6506-1:2019. It then discusses the selection of Brinell hardness test conditions for different materials. The following sections cover the Rockwell method, both with a conical and spherical indenter, in accordance with ISO 6508-1:2019. The Vickers method is presented using a diamond pyramid and includes measurements of low-load hardness and microhardness. Separate chapters are devoted to the determination of surface and projection hardness using Brinell, Rockwell, and Vickers instruments. The book is a practical guide for engineers, researchers and students working in the field of materials science and quality control. Read more

Along with quantum mechanics in the 1920s, Einstein’s Special Theory of Relativity (1905) and General Theory of Relativity (1916) stand as the supreme achievements of twentieth-century physics.In simplest terms, the theory of Relativity is an approach to the measurement and study of space and time. The theory assumes that findings are based upon the relation of the frame of reference to the objects measured. The Special Theory of Relativity is primarily concerned with electric and magnetic phenomena. The General Theory focuses on gravity—not as a force as Newton postulated—but as a curved field in the space-time continuum, created by the presence of mass.Redesigned to present an easier reading, Relativity includes both explanatory illustrations and mathematical derivations of Einstein’s theories. This book brings out the great scientist’s remarkable ability to penetrate directly into the heart of the subject and yet remain lucid and accessible. Read more

Oxygen analysis encompassing over 40 years practical experience Covering topics such as: Theory and Construction of Sensors Effects of Temperature Pressure Humidity Sensor Accuracy - Life Stability Measurement Techniques Use and Misuse in Rebreathers Examine the facts and remove the many myths The comprehensively extended 2nd edition is a valuable reference for any diver and instructor using Nitrox - mixed gases and rebreathers; enlarging on the underlining principle: “The methods used in oxygen analysis should be substantiated by scientific data and produce results continuously accurate and reproducible, without extensive training by the most inexperienced beginner” Read more