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.

Formula to calculate the length of time for a pendlum of a given length to move once from left to right.
CANADIAN WORKSHOP Apr 1986 (v.9#7) pg. 8

Build an executive game of swinging balls. Five 1" ball bearings are suspended from a wooden frame. Swinging balls demonstrate Newton's Third Law of Motion, "For every action, there is an equal and opposite reaction".
MECHANIX ILLUSTRATED #513 Feb 1971 (v.67) pg. 110

Make a Newton cradle. Balls suspended on strings illustrate how energy can be transformed without moving the balls in the middle.
POPULAR MECHANICS Jun 1974 (v.141#6) pg. 152
Correction POPULAR MECHANICS Aug 1974 (v.142#2) pg. 8

Circuit to provide a pulsating DC voltage to a coil to keep the pendulum in motion on an old electric clock.
RADIO-ELECTRONICS Jun 1988 (v.59#6) pg. 14
Added Info RADIO-ELECTRONICS Oct 1988 (v.59#10) pg. 23

Electronic pendulum. Six LEDs simulate the sensuous swing of a pendulum. Est. cost: $5.
SCIENCE & ELECTRONICS [2] Mar-Apr 1981 (v.21#2) pg. 77

Experimenting with chaos. How to build and use a double pendulum to explore the world of chaotic systems.
SCIENCE PROBE! Jan 1992 (v.2#1) pg. 64
Added Info SCIENCE PROBE! Jul 1992 (v.2#3) pg. 126

Build an accurate electromagnetic-driven Foucault pendulum.
SCIENTIFIC AMERICAN Feb 1964 (v.210#2) pg. 136

Little pendulums that oscillate like big ones. Several designs for pendulums of long period and small size. Such pendulums can sense the earth's rotation, earthquake vibrations, and disturbances in local gravitational fields.
SCIENTIFIC AMERICAN Apr 1967 (v.216#4) pg. 124

How to make a quartz-crystal oscillator for a pendulum clock that will give it an accuracy of one second per year. Includes instructions, circuitry of oscillator, power supply and digital counting circuit, details of solenoid assembly and layout of pins and circuit-division scheme.
SCIENTIFIC AMERICAN Sep 1974 (v.231#3) pg. 192
Correction SCIENTIFIC AMERICAN Nov 1974 (v.231#5) pg. 134

The amateur scientist. Experiments study the interaction of two pendulums joined through a variety of interconnections.
SCIENTIFIC AMERICAN Oct 1985 (v.253#4) pg. 176

Physics of collisions between balls of both identical and different masses.
SCIENTIFIC AMERICAN Oct 1988 (v.259#4) pg. 140

How to get the playground swing going. A first lesson in the mechanics of rotation. Scientific principles behind pendulum motion.
SCIENTIFIC AMERICAN Mar 1989 (v.260#3) pg. 106

A short (6.5 ft.) movable Foucault pendulum uses an electromagnet to keep the pendulum swinging indefinitely.
SKY & TELESCOPE Oct 1980 (v.60#4) pg. 330

How to make and use a mini-chuck for quickly and easily turning small items such as pendulums, bottle stoppers and drawer knobs. Includes step-by-step diagram for making pendulums, bouchons, spigots and knobs.
WOODTURNING #42 May 1996 pg. 36

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