Lightsaber
With the invention of the electricity bulb in the early 20th century, the world changed from the use of candlesticks and torch fires to a much more clean light. Since then, incandescent light bulbs were seen everywhere, ubiquitous for nearly half a century before the creation of fluorescent lamps.
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| Format: | Book Section |
| Language: | English |
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Universiti Putra Malaysia Press
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/60032/1/Chapter%202-1%202017.pdf |