What does it take to change the world? This book provides inspiring, in-depth stories of more than 25 diverse American inventors and entrepreneurs from Colonial times to the present. Richly illustrated with photographs in color and black-and-white, Inventors, Makers, Barrier Breakers focuses on the process of invention, its joys and frustrations, social progress, and the obstacles each inventor had to overcome.
For centuries, women have risen above their traditional roles to pursue new understanding of the natural world. This book, which grows out of an exhibit at the Grolier Club in New York, introduces the lives, sayings, and dreams of sixteen women over four centuries and chronicles their contributions to mathematics, physics, chemistry, astronomy, computer science, and medicine.
When Aunt Adelaide sends thirteen-year-old cousins Ivan and Daphne on a treasure hunt in the rain, they never expect to stumble into a whole new world an enchanting land where words and numbers run wild. They are surprised again when the first people they meet beg them to find Lexicon's missing children, who have wandered off, bewitched by lights in the sky. Trekking between villages in search of clues, the cousins encounter a plague of punctuation, a curious creature, a fog of forgetting, the Mistress of Metaphor, a panel of poets, and the illogical mathematicians of Irrationality. But when a careless Mathemystical reflects them across the border into the ominous Land of Night, their peril deepens. Kidnapped, imprisoned, and mesmerized--with time running out--will Daphne and Ivan find a way to solve the mystery of lights in the sky and restore the lost children of Lexicon to their homes?
" ... Presents the stories of seventeen women of science working in seven countries over a timespan of more than three centuries. From a scandalous French noblewoman who introduced Newton's ideas to France to the African American granddaughter of slaves who pioneered the field of chemotherapy, from a mathematical prodigy who retired from the world to practice charity to the daughter of a Nobel laureate determined to follow in her mother's footsteps, this book portrays women of strong personality who defied stereotypes and found their own way."--Front jacket flap.
New Frontiers in Formative Assessment blazes the trail for educators interested in assessment as learning and formative assessment in the classroom. The authors draw research from a number of classroom environments to show why this process is successful.
THE BOOK THAT MAKES ELECTRONICS MAKE SENSE This intuitive, applications-driven guide to electronics for hobbyists, engineers, and students doesn't overload readers with technical detail. Instead, it tells you-and shows you-what basic and advanced electronics parts and components do, and how they work. Chock-full of illustrations, Practical Electronics for Inventors offers over 750 hand-drawn images that provide clear, detailed instructions that can help turn theoretical ideas into real-life inventions and gadgets. CRYSTAL CLEAR AND COMPREHENSIVE Covering the entire field of electronics, from basics through analog and digital, AC and DC, integrated circuits (ICs), semiconductors, stepper motors and servos, LCD displays, and various input/output devices, this guide even includes a full chapter on the latest microcontrollers. A favorite memory-jogger for working electronics engineers, Practical Electronics for Inventors is also the ideal manual for those just getting started in circuit design. If you want to succeed in turning your ideas into workable electronic gadgets and inventions, is THE book. Starting with a light review of electronics history, physics, and math, the book provides an easy-to-understand overview of all major electronic elements, including: Basic passive components o Resistors, capacitors, inductors, transformers o Discrete passive circuits o Current-limiting networks, voltage dividers, filter circuits, attenuators o Discrete active devices o Diodes, transistors, thrysistors o Microcontrollers o Rectifiers, amplifiers, modulators, mixers, voltage regulators ENTHUSIASTIC READERS HELPED US MAKE THIS BOOK EVEN BETTER This revised, improved, and completely updated second edition reflects suggestions offered by the loyal hobbyists and inventors who made the first edition a bestseller. Reader-suggested improvements in this guide include: Thoroughly expanded and improved theory chapter New sections covering test equipment, optoelectronics, microcontroller circuits, and more New and revised drawings Answered problems throughout the book Practical Electronics for Inventors takes you through reading schematics, building and testing prototypes, purchasing electronic components, and safe work practices. You'll find all thisin a guide that's destined to get your creative-and inventive-juices flowing.
Middle schoolers Mae and Clinton travel through time and space on a special Galactic Academy of Science to understand the mysteries of the Covid pandemic.They visit epidemics from smallpox to measles to the 1918 flu to Nipah and Ebola, from Africa to Bangladesh, meeting people who fight epidemics in every way from capturing bats to tracing contacts to inventing treatments. Along the way they confront the frustrations and fears of living in quarantine while being inspired by the heroic efforts of a broad spectrum of heroes in fighting infectious disease. The book is accompanied by online assets including podcasts of the characters discussing their visits, short animated videos about the science, and a comprehensive book club and activity guide.
The return to Lexicon begins when thirteen-year-old cousins Ivan and Daphne find their Aunt Adelaide deathly ill. Leaving their aunt to rest, Ivan and Daphne accidentally let their younger cousin, Lila, in on their secret world of Lexicon. Ivan and Daphne must track Lila, who disappears, through the frozen landscape to the Land of Winter where social status and freedom are determined by how well one sings. Fortunately for Lila, her musical talent lands her in the most favorable place. Separated by class now, the cousins face cold, hunger, poverty, illness, injustice, and the malicious plotting of a power-hungry blind man. Slave, servant, and fine lady, the three cousins must escape their own imprisonment before they reunite, provoke a revolution, and restore spring to the Land of Winter.
When Jake finds an unusual rock in the cliffs under the Golden Gate bridge, he embarks on an adventure of discovery that will bring him new friends, new knowledge, and even the confidence to face a devastating earthquake.
