Blader door items (45 in totaal)

Van glasschijf tot telescoop : praktische handleiding voor het slijpen, paraboliseren en testen van spiegels voor telescopen en voor de bouw van een Newton-type kijker met Dobson-montering

Small and large telescopes are being installed all around the world. Astronomers have thus acquired better access to more modern equipment; not in the least to photometers, which are very important tools for the contemporary observer. This…

Call it a rite of passage. Call it the first step on an exciting journey. Call it what you want, but buying a first telescope is a leap of faith. For the beginning astronomer it is a gamble -- a hunch concerning the nature of a hobby not completely…

In this book, Peter Manly surveys more than 150 unusual telescope designs. These are telescopes built by amateur and professional astronomers to suit some special need. There is, for instance, an inflatable telescope and one with a liquid mirror.…

A collection of working models of sundials and timedials to be cut out and glued. The models include polar, equatorial, sunbeam equatorial, traditional, three-in-one and a nocturnal dial and include a minibook which gives background information,…