Added Info ELECTRONICS NOW Dec 1999 (v.70#12) pg. 3
Experiment with gravity. Sensitive ham radio receiver detects changes in gravity.
POPULAR ELECTRONICS [1] Jan 1970 (v.32#1) pg. 66
Simple, yet accurate, experiment proves Archimedes' principle of specific gravity. Est. cost: $7.
POPULAR MECHANICS Jan 1966 (v.125#1) pg. 168
Simple experiments simulate the space travel concepts of escape velocity, artificial gravity and weightlessness.
POPULAR SCIENCE Oct 1969 (v.195#4) pg. 167
Gravity. Simple experiments you can perform to better understand gravity and the role it plays in the universe.
SCIENCE PROBE! Jan 1992 (v.2#1) pg. 10
Cavendish experiment to find constant of gravity.
SCIENTIFIC AMERICAN Sep 1963 (v.209#3) pg. 267
Simulating gravitational fields with droplets of water on a soap bubble.
SCIENTIFIC AMERICAN Dec 1964 (v.211#6) pg. 134
The Fountain of Hero in modern form. A device which appears to defy gravity.
SCIENTIFIC AMERICAN Dec 1966 (v.215#6) pg. 138
Experiments on the effect of gravity on plant growth (geotropism). Includes instructions for building an apparatus that interferes with the natural response of the organic compounds known as auxins to the gravitational field.
SCIENTIFIC AMERICAN Jun 1970 (v.222#6) pg. 141
How to build a clock that will determine the energy of projectiles launched by a slingshot. Relies on the principle of the acceleration of gravity. The device will require two electromagnets, a 12-volt battery and miscellaneous switches, wire, metal rods and metal bars.
SCIENTIFIC AMERICAN Dec 1971 (v.225#6) pg. 100
A reduced gravity simulator and several experiments on the resulting effects of surface tension on the shape of fluids in closed containers.
SCIENTIFIC AMERICAN Apr 1972 (v.226#4) pg. 106
Inexpensive apparatus for the detection of gravity waves traveling through the ionosphere.
SCIENTIFIC AMERICAN Sep 1980 (v.243#3) pg. 232
Three simple and vivid demonstrations of advanced concepts in physics. (1) Doppler shift of light. (2) Measuring Plank's constant. (3) Measuring the universal gravitational constant.
SCIENTIFIC AMERICAN Jan 1983 (v.248#1) pg. 130
Description of "recreational experiments" done in a zero-gravity (free fall) environment.
SCIENTIFIC AMERICAN Feb 1986 (v.254#2) pg. 116
An exploration of geotropism. Growing seedlings at less than 1g. Describes how to build a tumbling and spinning device using a bicycle wheel that allows observations on the thresholds at which plants first respond to gravity and see how seeds would grow on Mars.
SCIENTIFIC AMERICAN Feb 1996 (v.274#2) pg. 122