Light and Matter (Popularity: )

Free introductory physics textbooks for the high school or college level, available as large pdf ...
Category: Science\Physics\Education\Tutorials

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Articles on spiritual experience and magnetic signal brain stimulation by one of Michael Persinger's students.
Category: Science\Social Sciences\Psychology\Psychology and Religion

Gill Instruments Limited (Popularity: )

Design and manufacture automotive electronics, ultrasonic anemometers and gas flow measurement systems . Product data ...
Category: Science\Technology\Acoustics, Ultrasound and Vibration\Ultrasound