Date: 2012-02-07 14:00:08Metrology Electrical systems Light sources Gas discharge lamps Incandescent light bulb Candlepower Standard Kilogram Electric light Measurement Light Lighting | | ELECTRICITY, RAILROADS, AND RADIO (1911—16) CHAPTER III STANDARDS FOR THE AGE OF ELECTRICITY The first two decades of the 20th century witnessed a new industrial revolution, the electrification of American industry. InAdd to Reading ListSource URL: www.nist.govDownload Document from Source Website File Size: 3,32 MBShare Document on Facebook
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