
The Amateur Scientist
On the differential operational amplifier, a device that simulates almost anything
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
Experiments in generating the constituents of living matter from inorganic substances
How to make photographs in polymer and build a sensitive pressure gauge
Old refrigerators are salvaged to build a laboratory cooler and a gas liquefier
The flow of blood, weather vanes, telescope mirrors and the conductivity of insulators
Antigens and antibodies are studied by their diffusion patterns in agar
Color photographs of the night sky are made by refrigerating the film
The metabolic rate of small animals is measured in homemade apparatus
Salts react in a gel to make the colorful Liesegang bands
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