Science Notes

Title

Science Notes

Identifier

32124

Abstract

AUTOMATIC BLACKOUT -- The photoelectric call or electric eye now does night duty in blackouts. When street lights are turned off the electric eye sounds an immediate warning and likewise turns off lights in homes, stores, display signs and other place

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Publication Title

Publication Date

URL

Files

Collection

Reference

'Science Notes', New York Times

Cite As

“Science Notes,” Past Periodicals, accessed April 13, 2021, https://unsettlingscientificstories.omeka.net/items/show/21278.