Tackling the triple point

Article Abstract:

Calibrating a thermometer need no longer be expensive. Amateur scientist George Schmermund has designed a triple point cell which requires less than $50 to construct. The triple point is 0.01 deg C and is that point where water can exist as gas, liquid and solid in equilibrium.

Thermometers

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Detecting micron-sized movements

Article Abstract:

A simple detector developed by University of Nevada biologist John R.B. Lighton can detect movements as tiny as a half micron. Miniscule magnets attached to the sources of motion are picked up by a sensor which detects magnetic field variations.

Innovations, Detection equipment, Motion detectors, Detectors, Lighton, John L.B.

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Detecting natural electromagnetic waves

Article Abstract:

Many scientists believe that low-frequency electromagnetic waves are predictors of earthquake activity. Instructions are provided for building a wave detector which consists of a copper antenna radio, tuned in at 0.1 - 20 hertz frequency.

Equipment and supplies, Design and construction, Antennas (Electronics), Earthquake prediction

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