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  • Audiokniha

    How Do Seesaws Go Up and Down?

    A Book about Simple Machines

    podle Jennifer Shand ...
    Čte Full Cast ...
    Série série How Do?

    Nezkrácené

    14 min

    Have you ever wondered how seesaws go up and down or how screws stay secure in walls? Beginning concepts of mechanical engineering, including levers, wedges, inclined planes, and more, are explored in this newest engaging addition to the How Do series. The How Do series is a great introduction to various STEM topics, each presented in a format that encourages audiences to ask questions and guess ... Přečtěte si více

    208,44 Kč

  • Audiokniha

    How Do Bridges Not Fall Down?

    A Book About Architecture & Engineering

    podle Jennifer Shand ...
    Čte Full Cast ...
    Série série How Do?

    Nezkrácené

    15 min

    Have you ever wondered how bridges don’t fall down or how really old buildings stay standing up? Basic principles of architecture and engineering, including an introduction to bridges, locks, arches, columns, and skyscrapers, are explored in this newest engaging addition to the How Do series. The How Do series is a great introduction to various STEM topics, each written in a format that encourages ... Přečtěte si více

    208,44 Kč