Homemade microgram electrobalances
Article Abstract:
Scientist George Schmermund has discovered how to make an electrobalance, which often costs more than $10,000, for less than $30. The electrobalance can weigh objects with masses from about 10 micrograms to 500,000 micrograms. Directions for assembling the electrobalance are provided.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1996
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A homemade high-precision thermometer
Article Abstract:
George Schmermund built a high-precision thermometer that has the capacity to measure temperature within a few thousandths of a degree Celsius. This thermometer is backed by a resistance temperature detector and is useful in home-based laboratories.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1999
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Down among the micrograms
Article Abstract:
Extensive narrative accompanies the plans for an electronic scale sensitive to 10 micrograms.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 2000
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