Stories by C. L. Stong

How to make an electrocardiogram of a water flea and investigate other bioelectric effects

A new method that enables the amateur mineralogist to identify various clays

A high school student builds a plasma jet generator that attains solar temperatures

An amateur investigates the origin of Venezuela's peculiar fog: the calina

How the amateur can experiment with films only one molecule thick

Some diverting devices that apply the concept of negative resistance

An amateur uses paper chromatography to separate the constituents of mixtures

An amateur's improved design for a homemade quartz crystal clock

Mostly on how to make impressions of biological specimens in plastic

Various experiments for a rainy weekend

A young amateur experiments with a plant that collapses its leaves when it is touched

Concerning periscopes, high vacuums, microprojection and photomicrography

An amateur makes spectra of the aurora and photographs the sun's green flash

Two amateurs calculate the exposure needed to photograph a lunar eclipse

How to make an electret: the device that permanently maintains an electric charge

How amateurs can make a device for listening to underwater sounds

How a group of amateurs detected flares on the sun with long-wave radio receivers

A second article about how two amateurs refined the accuracy of a pendulum clock

How two distinguished amateurs set about refining the accuracy of a pendulum clock

Concerning experiments with rubber and how to re-create a classical electrostatic generator

How the amateur can perform experiments that call for the use of radioactive isotopes

Apparatus to demonstrate the Coriolis force, and how to make a kymograph out of a tin can

Concerning homemade vacuum pumps and some of the things that can be done with them

An amateur asks: Does a hummingbird find its way to nectar through its sense of smell?