Stories by C. L. Stong

On equipment to study freezing and on growing crystals of salt

An Indian mound is excavated by high school archaeologists

How to make an electrochemical cell and also an unusual kind of sundial

How to "sputter" thin films of metal onto glass and experiment with them

How to construct a gas chromatograph that can measure one part in a million

A gauge to measure tiny changes in gas pressure; growth substances in plants

How to construct fluid models that simulate fields of force

A sensitive electronic thermometer used for making a study in micrometeorology

How to study learning in the sow bug and photograph tiny live crustaceans

Little pendulums that oscillate like big ones

Two kinds of apparatus for growing plants in a controlled environment

How to make holograms and experiment with them or with ready-made holograms

The study of electrostatic effects and convection currents in liquids

An amateur's experiment in animal behavior and a study of the salty rain of Venezuela

Two devices for electric welding, one using a carbon arc torch and the other a rattrap

How to build a wind tunnel that achieves supersonic speeds with a vacuum system

On the making of an inexpensive diffraction-grating spectrograph

Stimulating plant growth with ultrasonic vibrations; electrical discharges in a gas

An inexpensive machine to record observational data automatically

How to build a gas chromatograph and use it to separate the components of mixtures

A rain gauge, a fluid flip-flop, a sundial and a way of seeing crystals as they grow

How to perform experiments with animal cells living in tissue culture

On preserving the shapes of snow crystals by catching snowflakes in dissolved plastic

How to record and listen to the electrical signals produced by microscopic animals