Alberto Roberts: 10 books

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)...

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...

A new project has now been added. OPTICAL PROJECTS FOR THE ENTHUSIAST (SECOND EDITION) now covers SIX COMPLETE PROJECTS that I have undertaken recently. Each of the builds is fully explained in detail and is supported by clear photographs. Projects 1, 2, 5 and 6 are concerned with telescope making....

Two original titles, Making a Refracting Telescope and Making a 102mm Refracting Telescope, 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...

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.

A CONCISE GUIDE TO COLLECTING AND RESTORING VINTAGE BINOCULARS is particularly suitable for beginners who would like to build a collection of vintage or preowned binoculars and would like guidance on how to carry out their own servicing tasks. Over the years I have built a sizable collection of preowned...

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...

We are proud to present the People of Color Take over FSI Special Issue! Edited by Nisi Shawl Fiction 'What Futures' by Su-Yee Lin 'Shadow Animals' by Stephen Graham Jones 'Darkout' by E. Lily Yu 'The Executioner' by Jennifer Marie Brissett 'I Understand' by Jermaine McGill 'Walking Round Money' by...

¡Cada mes The Dark te ofrece lo mejor en fantasía oscura y terror! Este número especial en español publicado por Prime Books incluye dos cuentos nuevos y dos reeditados, seleccionados por los galardonados editores Silvia Moreno-Garcia y Sean Wallace: "Temporada De Serpientes"...

A book such as this spins not only words but also whole worlds: eighteen of them, representing the best lesbian-themed stories of the fantastic or futuristic published the prior year: An artisan who tests the skills and wares of her friends in the hope of finding the ideal housing for an idealized...