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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.


How to clean your optics. Remove dust and dirt from your telescope mirrors, lenses, and eyepieces.
ASTRONOMY Mar 1992 (v.20#3) pg. 81
Added Info ASTRONOMY Jun 1992 (v.20#6) pg. 6

Dimensions for constructing segments which form large cardboard paraboloids (up to 5 ft. in diameter) capable of picking up sound or light and focusing it with a focus ratio of f/.25 or less.
SCIENTIFIC AMERICAN Dec 1973 (v.229#6) pg. 127
Correction SCIENTIFIC AMERICAN Nov 1974 (v.231#5) pg. 128

Making a telescope mirror by spinning a liquid. A concave, parabolic epoxy mirror is created by spinning a mixture of resin and hardener in a plastic food storage container using a phonograph turntable.
SCIENTIFIC AMERICAN Feb 1994 (v.270#2) pg. 116

Experiments with vacuum-formed mirrors. One amateur describes his attempts to make telescope mirrors from a sheet of window glass with a vacuum behind it.
SKY & TELESCOPE May 1979 (v.57#5) pg. 491

A brief discussion of spherical -vs.- parabolic mirrors for telescopes.
SKY & TELESCOPE Oct 1983 (v.66#4) pg. 356

Problems in trying to cast glass disks for telescope mirrors.
SKY & TELESCOPE Oct 1995 (v.90#4) pg. 82

Caring for optics. Advice on cleaning lenses and mirrors found in telescopes, binoculars, cameras, etc.
SKY & TELESCOPE Jul 1997 (v.94#1) pg. 106

Sizing up the Newtonian secondary. Making sure your reflector's secondary mirror (diagonal) is the correct size is a straightforward task.
SKY & TELESCOPE Aug 2000 (v.100#2) pg. 120, 123

Downsizing Newtonian secondary mirrors. Improve image contrast by reducing the size of your reflector's diagonal mirror with an easy-to-build relay-lens assembly.
SKY & TELESCOPE Oct 2001 (v.102#4) pg. 122

Modifications to the diffraction image caused by surface roughness in telescope mirrors. Includes a "fractal mirror modeling" computer program written in BASIC.
TELESCOPE MAKING #28 Fall 1986 pg. 24

The comparative costs of telescope mirrors. A study of aperture versus cost among commercial optics from 6" to 14.5" (diameter) in order to determine the best value (lowest cost) per square inch.
TELESCOPE MAKING #36 Spring 1989 pg. 4

Discussion of glass sagging (and the resulting change in shape) as it applies to thin telescope mirrors.
TELESCOPE MAKING #44 Spring 1991 pg. 5
Added Info TELESCOPE MAKING #45 Summer 1991 pg. 4