Stories by C. L. Stong

A simple laser interferometer, an inexpensive infrared viewer and simulated chromatograms

Groups are organized to observe the eclipse of stars by the moon

An osmotic pump, an unusual timer and how to enhance contrast in astronomical photographs

An amateur breaks glass with a purpose: to determine the patterns of fracture

Experiments with wind: a pendulum anemometer and miniature tornadoes

A carbon dioxide laser is constructed by a high school student in California

How to build a machine to produce low-energy protons and deuterons

How to ensure a good hologram and how to build an unusual kind of barometer

Experiments with salt fountains and related instabilities in water

Schlieren photography is used to study the flow of air around small objects

Some delightful engines driven by the heating of rubber bands

Generating visual illusions with two kinds of apparatus

On the differential operational amplifier, a device that simulates almost anything

How to make an isoteniscope: an apparatus for measuring the boiling point of fluids

A modulator is constructed for laser light, and phase-contrast microscopy is simulated

The color vision of pigeons is tested in a Skinner box

Curious oscillators that involve salt water, flame and hot wire

Devices for listening to sounds both in the water and in the solid earth

How to construct a molecular-beam apparatus and a mass spectrometer

The effects of gravity on plant growth, and the deposition and use of thin films

A simple new amplifying device is adapted to driving a pen recorder

An ambitious observatory is built by father and son

How to study the life of a pond and to cultivate aquatic insects

A tunable laser using organic dye is made at home for less than $75