Showing titles in Science & Technology

Examines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Wer sich mit Einstein in einen Fahrstuhl begibt, lernt nicht nur den berühmtesten Physiker aller Zeiten kennen, sondern erlebt auch ungeahnte Abenteuer: Angenommen, das Seil des Fahrstuhls reißt. Dann zeigt eine Waage, auf der beide vielleicht stehen, nichts mehr an! Können sie dann überhaupt wissen, dass sie wirklich nach unten fallen und nicht etwa schwerelos im All schweben? Mit Experimenten und Versuchen zum Ausprobieren werden die Hörer anschaulich in die Grundlagen der Mechanik eingeführt.

Isaac Newton's youth was marked by constant curiosity. As he began a life of research and experiments, he turned this curiosity into major insights about the workings of Earth and the universe. He even developed three laws to explain the motions of objects.

You probably use Wi-Fi all the time to connect to the internet through your laptop, tablet, or phone. It's easy. Wi-Fi hotspots surround you as you go through your day—from school to a pizza place or coffee shop, and then back home. Not so long ago, the internet wasn't as accessible. Find out how Wi-Fi works, how it became commonplace, and what it might do for you in the future.

Gorgeous eyelashes. Flashy feathers. Silky hair. The animals in this book are far from drab and dull.

Dmitri Mendeleyev gave science one of its most important discoveries when he published his periodic table of elements. The periodic table has determined much in the way of science in the past and will continue to do so in the future. The scientist behind the table came from the barren wasteland of Siberia in 19th-century Russia and rose to world acclaim for his work in chemistry.

The Great Fire of 1871 was one of the most colossal disasters in American history - with damage so profound that few people believed the city could ever rise again. By weaving personal accounts of actual survivors together with careful research, Jim Murphy constructs a riveting and dramatic narrative, ultimately revealing how the human spirit triumphed even in a time of deepest despair and the people of Chicago found the courage and strength to build their city once again.

Una autobiografía que explora cómo un niño migrante se convirtió en astronauta.

Have you ever wondered how computers follow instructions so well? Or how they do math so quickly? Basic principles of coding, including variables, binary code, loops, programming languages, and more, are explored in this newest engaging addition to the How Do series.

Finding Home is a celebration of animals and their drive to survive no matter the odds - finding shelter in every nook and cranny on Earth, from the obvious to the unusual. With rich, vivid nonfiction storytelling, this is an essential collection for anyone fascinated by animals and the wild ways they live.

When you were born, there was a sign of the zodiac that ruled the night sky. Astrologers believe that the particular sign appearing the moment you were born would influence your personality throughout your life. In this fun and exciting guide, you'll find out all about the signs of the zodiac and how they might make you brave, caring, fun, creative, and more!

On November 24, 1971, an unidentified man hijacked an airplane that was flying from Portland, Oregon, to Seattle, Washington. He demanded $200,000 and told a flight attendant that he had weapons. After stopping in Seattle, the hijacker was given the money and he released the attendants. But he demanded that the pilots stay on-board, refuel, and fly him to Mexico City. Just thirty minutes after the plane took off, the man jumped out of the aircraft and parachuted away...never to be seen or heard from again. Did he escape with the money? Did he even survive the jump?

This dazzling poetry collection bubbles with excitement and creativity, capturing the sheer joy of the natural world. Discover parades of beast-doodles, preposterous penguins, talking blossoms, playful birds, humble fleas and a host of other exotic and everyday creatures who jump off the page and into our hearts. Thought-provoking and delightfully original, Cherry Moon will encourage children of every age to explore the power, enchantment and wonderfulness of poetry and nature.

Después de los sucesos de la noche de la Luna Roja y la trágica batalla en el Castillo de la Luna, lo que el rey Emil Solerian desea es la paz entre Ilardya y Alariel. Aunque los rencores y prejuicios de un milenio no son fáciles de sanar, Emil está decidido a hacer su mejor esfuerzo con un nuevo Tratado que logre una convivencia armónica.

Sin embargo, antes debe lidiar con algo más urgente: los rebeldes de Lestra, quienes están dispuestos a cometer atrocidades inimaginables con tal de derrocar al que consideran un falso rey...

In this book, Joaquin and Yocsary take us on an exciting and unforgettable adventure around the unique Central American country of Costa Rica. Are you ready to take a majestic walk in the cloud forests and visit tropical blond and black sand beaches all in the same country? Feel free to jump into the ocean and go surfing. Visit hot spring sites and learn more about the wonderful biodiversity in the Costa Rican jungle.

For centuries, people misunderstood how the heart works. As our knowledge grew, heart surgery remained a dangerous medical procedure. Even after organ transplants become common, surgeons struggled to transplant hearts and keep patients alive. But small groups of pioneering doctors attempted this difficult surgery, changing the lives of patients. This history traces their leap forward and the medical world's newest advancements in heart health technology. Learn about innovations such as artificial hearts and 3D-printed living tissue.

It might seem lonely at the top of the world, but the North Pole is teeming with life! Polar bears, walruses, and arctic seals make their home on sea ice that can be nine feet thick while the Inuit and other indigenous peoples continue their traditions and means for survival in this harsh climate.

Peter is about to turn seven years old. For his upcoming Birthday he is gifted a 3D printer by his father - one that is capable of printing anything! Enter Pablo the Printer. Pablo the Printer is powered by invention, fun and courage. While most 3D printers can only print in plastic, Pablo can literally print things to life! Pablo not only prints Peter the toys he wants, including a new best friend (a blue dog named Rocky will always be a man's best friend), but he also shares timeless wisdom with him.

At least as far back as the ancient myth of Icarus, humans longed to fly - but it wasn't until December 17, 1903, on the windy dunes of Kitty Hawk, North Carolina, that the dream finally came true. And it was all thanks to Orville and Wilbur Wright, two former bicycle mechanics who built their first toy plane - a rubber-band powered rotary - when they were just children.

Little brown bats do us a big favor. They eat huge numbers of insects! That helps limit the spread of diseases and the damage that insects do to farm crops. But in recent years, large populations of little brown bats have been dying off each winter. Is a virus killing them? Could climate change or pesticides be the cause? Or is it something else? Follow a team of dedicated scientists working to save the little brown bats in this real-life science mystery.