A contact-pencil for research on writing
Crawshaw, Martin; Ottaway, Mary; Crawshaw, Martin; Department of Psychology, University of Hull; Ottaway, Mary; Department of Psychology, University of Southampton
Журнал:
Quarterly Journal of Experimental Psychology
Дата:
1977
Аннотация:
A pencil is described which closes a circuit when the lead is in contact with the writing surface. Its advantages over previous devices lie in simplicity, cost and reliability; it leaves a normal pencil trace on ordinary paper; and due to its novel mode of action, the movement of the writing element is extremely small, comparable with normal writing instruments.
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