Build Your Own Telescope


Book Description

For anyone who has ever dreamed of exploring the heavens with a telescope.




Making Your Own Telescope


Book Description

Complete, detailed instructions and numerous diagrams for constructing a do-it-yourself telescope. No complicated mathematics are involved, and no prior knowledge of optics or astronomy is needed to follow the text's step-by-step directions. Contents cover, among other topics, materials and equipment; tube parts and alignment; eyepieces, and related problems; setting circles; and optical principles. 1973 ed. Appendixes. Index. 6 plates. 100 figures.




The Dobsonian Telescope


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How to Make a Telescope


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Amateur Telescope Making


Book Description

This book provides an introduction to the design of a variety of telescopes, mounts, and drives suitable for the home-constructor. Projects include instruments that range from a shoestring budget to specialist devices that are not commercially available. The skill level of each project is indicated and advice is provided as to what is sensible to construct, given what is commercially available. Hints and tips are included, as well as listings of reputable mail order sources of materials and components.




All about Telescopes


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The Optimist's Telescope


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Named a Best Book of 2019 by NPR “How might we mitigate losses caused by shortsightedness? Bina Venkataraman, a former climate adviser to the Obama administration, brings a storyteller’s eye to this question. . . . She is also deeply informed about the relevant science.” —The New York Times Book Review A trailblazing exploration of how we can plan better for the future: our own, our families’, and our society’s. Instant gratification is the norm today—in our lives, our culture, our economy, and our politics. Many of us have forgotten (if we ever learned) how to make smart decisions for the long run. Whether it comes to our finances, our health, our communities, or our planet, it’s easy to avoid thinking ahead. The consequences of this immediacy are stark: Deadly outbreaks spread because leaders failed to act on early warning signs. Companies that fail to invest stagnate and fall behind. Hurricanes and wildfires turn deadly for communities that could have taken more precaution. Today more than ever, all of us need to know how we can make better long-term decisions in our lives, businesses, and society. Bina Venkataraman sees the way forward. A journalist and former adviser in the Obama White House, she helped communities and businesses prepare for climate change, and she learned firsthand why people don’t think ahead—and what can be done to change that. In The Optimist’s Telescope, she draws from stories she has reported around the world and new research in biology, psychology, and economics to explain how we can make decisions that benefit us over time. With examples from ancient Pompeii to modern-day Fukushima, she dispels the myth that human nature is impossibly reckless and highlights the surprising practices each of us can adopt in our own lives—and the ones we must fight for as a society. The result is a book brimming with the ideas and insights all of us need in order to forge a better future.




Imagine Childhood


Book Description

For children, potential is limitless, curiosity is an electrical current, and every moment is open to the possibility of the unexpected. Day-to-day life is filled with adventure. Road blocks are invitations to try new routes. And the world is vast and expansive. This book is a celebration of childhood through the crafts and activities that invite wonder and play. The twenty-five projects and activities in this book are meant to speak to the way children engage with the world. These projects are not about what is produced in the end (although that part is fun too) but rather they are stepping-off points—activities that spark curiosity, an adventure, or an investigation. They’re about the process of getting there. They’re about the conversations that happen while making things together. They’re about getting to know the world inch by inch. They’re about exploring imaginary universes and running through real forests. They’re about living in childhood . . . regardless of your actual age. They’re about being a kid.