Psychodiagnostic Plates (Psychodiagnostik Tafeln)

Psychodiagnostic Plates

In 1917, Swiss psychiatrist Hermann Rorschach tested his inkblot system, comprised of five color inkblot cards and five black and white cards. As they were shown each card, 300 patients and 100 control subjects were asked to respond while Rorschach wrote down their answers. Afterward, he showed patients the cards

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Vector EKG Wire-frame Models

Vector EKG Wire-frame Models

Otto Schmitt, a biophysicist at the University of Minnesota, is considered the father of biomedical engineering. Schmitt wanted to improve on the electrocardiograph (EKG), which measures electrical currents of the heart. As a result of his research in the late 1940s and 1950s, he created a way to represent a

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Electric Bitters

  “You are feeling depressed, your appetite is poor, you are bothered with headache, you are fidgety, and nervous, and generally out of sorts, and want to brace up… What you want is an alternative that will purify your blood, start healthy action of liver and kidneys, restore your vitality,

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