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“alberto roberts”

Showing 1 - 12 of 12 results for “alberto roberts”
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  • Refracting Telescope Revival CELESTRON POWERSEEKER 70AZ

    by Alberto Roberts ...
    This book is a fully illustrated guide on how I restored a telescope that was in poor condition when I purchased it recently at a local car boot sale. If you own a Celestron 70AZ refractor or a similar telescope and wish to perform your own servicing tasks, this resource will prove useful. Additionally, it may appeal to those who enjoy picking up bargains from car boot sales, table sales, online ... Read more

    $5.45 USD

  • OPTICAL PROJECTS FOR THE ENTHUSIAST (THIRD EDITION)

    by Alberto Roberts ...
    OPTICAL PROJECTS FOR THE ENTHUSIAST (THIRD EDITION) now features seven DIY projects. Each project is covered in detail, and the book is fully illustrated with colour photographs throughout. Projects 1, 2, 5, and 6 focus on telescope making. Project 3 covers the creation of a universal camera mount for use with a telescope, while Project 4 details the construction of a binocular mount for use with ... Read more

    $5.45 USD

  • Binoculars 2 books in 1 (Second Edition)

    by Alberto Roberts ...
    This new October 2021 edition has been revised and extended. Two original titles, A Concise Guide to Collecting and Restoring Vintage Binoculars (Third Edition) and Porro Prism Binoculars Overhaul (Second Edition), now available together in one book.Book 1: A Concise Guide to Collecting and Restoring Vintage Binoculars (Third Edition) is a short introductory guide, suitable for anyone who would ... Read more

    $6.81 USD

  • MAKING A REFRACTING TELESCOPE

    by Alberto Roberts ...
    Making a Refracting Telescope guides you through the process of making your own refractor using inexpensive materials and basic workshop tools. The makiing of each component is described in detail with step by step instructions, advice, helpful photographs and diagrams. The book was originally written in 1991 but was not published then. It focuses on the making of an instrument using a specific ... Read more

    $4.08 USD

  • A Concise Guide to Collecting and Restoring Vintage Binoculars (Third Edition)

    by Alberto Roberts ...
    A Concise Guide to Collecting and Restoring Vintage Binoculars (Third Edition) is a short introductory guide, suitable for anyone who would like to build a collection of binoculars, have guidance on purchasing previously owned binoculars, carry out servicing and restoration tasks, and have a better understanding of binocular history, types and specifications. ... Read more

    $4.08 USD

  • An Amateur Astronomer's Observations 1983 - 1985

    by Alberto Roberts ...
    This book is based on my astronomical observations carried out over a period from 1983 to 1985 using the unaided eye, binoculars and modest sized telescopes. The observations were recorded in a note book which I rediscovered recently when sorting out my collection of astronomy books, magazines, old photographs and astronomical society newsletters. ... Read more

    $4.08 USD

  • Porro Prism Binoculars Overhaul (Second Edition)

    by Alberto Roberts ...
    This book is a detailed, easy to follow, fully illustrated manual for performing a complete overhaul of binoculars that use porro prisms in their design. It is an essential resource for anyone wanting to carry out their own binocular servicing and restoration work.In this second edition, four new sections have been added as follows:More about alignment: prismsGrub screwsServicing the ocular arm ... Read more

    $5.45 USD

  • Making a 102 mm Refracting Telescope (Second Edition)

    by Alberto Roberts ...
    My first book, Making a Refracting Telescope, featured the making of a small refracting telescope from commonly found and inexpensive materials. The telescope had a 48mm diameter achromatic objective lens with a focal length of 450mm and was designed to be used with standard 24.5mm (0.965 inch) diameter eyepieces and accessories. Also included in my first book was a photograph of a 102mm ... Read more

    $5.45 USD

  • MAKING REFRACTING TELESCOPES 2 BOOKS IN 1 (Second Edition)

    by Alberto Roberts ...
    Two original titles, Making a Refracting Telescope and Making a 102mm Refracting Telescope (Second Edition), now available together in one book.Book 1: Making a Refracting Telescope guides you through the process of making your own refractor using inexpensive materials and basic workshop tools. The making of each component is described in detail with step by step instructions, advice, helpful ... Read more

    $6.81 USD

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    by Lasse Lu Pedersen ...
    The microscope is the most important tool in the microbiologists toolbox. Nowadays, several companies sell very well made microscopes, but such a luxury was unknown to the earliest microbiologists. They had to build their own microscopes, and many advancements to the science of microbiology were made by people who managed to improve on their own private microscopes.While basic models have become ... Read more

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  • Build Your Own Solar Powered Generator: Step by Step Instructions for Solar Power at a Fraction of the Cost

    by Sue Merriam ...
    When the power goes out, you need to be prepared. A solar powered generator is a great way to have electricity during an emergency, but buying one can be expensive. Fortunately, you can build your own solar powered generator for a fraction of the cost, often less than $300. This handy, step-by-step guide will show you how. ... Read more

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  • Mind-Blowing Modular Origami

    The Art of Polyhedral Paper Folding: Use Origami Math to fold Complex, Innovative Geometric Origami Models

    by Byriah Loper ...
    Modular origami is the latest craze in paper folding!These three-dimensional models are created from a number of small pieces of paper that are easily folded and then cleverly fit together to form a spectacular shape. They range from paper polyhedra to bristling buckyballs that are reminiscent of sea urchins—to ornate flower-like spheres.Each piece of paper is held by the tension of the other ... Read more

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