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1 - 12 de 12 resultados para “robert l clark”
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  • Amateur Telescope Making in the Internet Age

    Finding Parts, Getting Help, and More

    de Robert L. Clark ...
    Series series Physics and Astronomy (R0)
    Building an astronomical telescope offers the amateur astronomer an exciting challenge, with the possibility of ending up with a far bigger and better telescope than could have been afforded otherwise. In the past, the starting point has always been the grinding and polishing of at least the primary mirror, a difficult and immensely time-consuming process. But now that the Internet has brought us ... Leer más

    $28.99 USD

  • Audiolibro

    Buzz About Hummingbirds, The

    de Robert L. Clark ...
    Narrado por Highlights for Children ...
    Series series Read with Highlights

    Completo

    2 minutos

    The author observes and photographs a hummingbird chasing other birds away from his bird feeder. Includes purchased photos. ... Leer más

    $2.99 USD

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  • 14 Fun Facts About the Sun: A 15-Minute Book

    15-Minute Books, #133

    de Jeannie Meekins ...
    Series Libro 133 - 15-Minute Books
    Our sun is an average star in our galaxy. It is a sphere of burning gas that provides light and heat. It makes our plants grow and allows them to turn carbon dioxide into breathable oxygen.If our sun were to shine a little less or a little more brightly, life as we knew it would not exist. A drop of less than 2% of the sun's energy output would turn Earth into an ice-covered planet.So how much do ... Leer más

    $0.99 USD o gratis con Kobo Plus

  • 14 Fun Facts About Pluto: A 15-Minute Book

    15-Minute Books, #129

    de Jeannie Meekins ...
    Series Libro 129 - 15-Minute Books
    Pluto was once considered to be the smallest planet in our galaxy. As more was discovered about the other planets, and about other objects in our galaxy, Pluto fell into debate, but many people still like to consider it a planet. How much do you really know about Pluto?Why do scientists say Pluto was "discovered by mistake"?Who discovered Pluto?How big is Pluto compared to the United States?Is ... Leer más

    $0.99 USD o gratis con Kobo Plus

  • Astronomy Made Simple

    A Clear Guide to the Workings of the Universe

    de Kevin B. Marvel Ph.D. ...
    Series series Made Simple
    See the skies in a whole new light. Take a tour of the universe, from our local solar system to the far reaches of deepest space. Astronomy Made Simple offers a complete introduction to this science, from its birth in ancient times to the different types of super-powerful telescopes scientists use today. It also includes detailed instructions on how to map the stars and understand the coordinate ... Leer más

    $9.99 USD

  • 14 Fun Facts About Venus: A 15-Minute Book

    15-Minute Books, #104

    de Caitlind L. Alexander ...
    Series Libro 104 - 15-Minute Books
    Does it ever rain on Venus?How thick is the air on Venus?Which is longer on Venus, a day or a year?How did Venus change the way people saw the world?Learn the answer to these questions and many more fun facts in this 15-Minute Book. Venus is the second planet from the sun. It sits between Mercury and Earth. Scientists have studied Venus and here are a few facts we have learned.LearningIsland.com ... Leer más

    $0.99 USD o gratis con Kobo Plus

  • Introducing Time

    A Graphic Guide

    de Craig Callender ...
    Series series Graphic Guides
    What is time? The 5th-century philosopher St Augustine famously said that he knew what time was, so long as no one asked him.Is time a fourth dimension similar to space or does it flow in some sense? And if it flows, does it make sense to say how fast? Does the future exist? Is time travel possible? Why does time seem to pass in only one direction?These questions and others are among the deepest ... Leer más

    $6.99 USD o gratis con Kobo Plus

  • Beyond Earth

    Our Path to a New Home in the Planets

    de Charles Wohlforth, Amanda R. Hendrix Ph.D. ...
    From a leading planetary scientist and an award-winning science writer, a propulsive account of the developments and initiatives that have transformed the dream of space colonization into something that may well be achievable.We are at the cusp of a golden age in space science, as increasingly more entrepreneurs—Elon Musk, Richard Branson, Jeff Bezos—are seduced by the commercial potential of ... Leer más

    $4.99 USD

    Disponible también en: Audiolibro

    Disponible también en: Audiolibro

  • Voyager: Exploring the Outer Planets

    de Joan Marie Verba ...
    In 1977, NASA launched the space probes Voyager 1 and Voyager 2 to explore Jupiter, Saturn, Uranus, and Neptune. This book tells of what was known about those planets and their moons before the Voyager missions, as well as what Voyager discovered about those planets and their moons. This book is written for the middle-grade reader, and can be enjoyed by readers age 12 and up.NASA launched Voyager ... Leer más

    $6.99 USD o gratis con Kobo Plus

  • The History of the Universe

    de David H. Lyth ...
    Series series Physics and Astronomy (R0)
    This book gives an accessible account of the history of the Universe; not only what happened, but why it happened. An author of textbooks on the early Universe and inflation, David Lyth now explains both cosmology and the underlying physics to the general reader. The book includes a detailed account of the almost imperceptible structure in the early Universe, and its probable origin as a quantum ... Leer más

    $40.99 USD

  • Solar System For Kids (Speedy Study Guide)

    de Speedy Publishing ...
    A solar system study guide designed for kids can help children to grasp important science concepts in a fun and easy to learn way. A study guide can help introduce concepts like star systems, galaxies, rotational orbits, gravity and other important scientific basics in an interesting and engaging format. A study guide can teach kids about planets, moons, asteroids, comets and other celestial ... Leer más

    $2.99 USD

  • Software and Data for Practical Astronomers

    The Best of the Internet

    de David Ratledge ...
    Series series Physics and Astronomy (R0)

    $62.99 USD