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قراءة كتاب Artificial Light: Its Influence upon Civilization

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‏اللغة: English
Artificial Light: Its Influence upon Civilization

Artificial Light: Its Influence upon Civilization

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دار النشر: Project Gutenberg
الصفحة رقم: 3
On the testing-racks of the manufacturer of incandescent filament lamps 129 Carbon-dioxide tube for accurate color-matching 160 The Moore nitrogen tube 160 Modern street lighting 161 A completed lighthouse lens 176 Torro Point Lighthouse, Panama Canal 176 American search-light position on Western Front in 1919 177 American standard field search-light and power unit 177 Signal-light for airplane 232 Trench light-signaling outfit 232 Aviation field light-signal projector 232 Signal search-light for airplane 232 Unsafe, unproductive lighting worthy of the dark ages 233 The same factory made safe, cheerful, and more productive by modern lighting 233 Locomotive electric headlight 240 Search-light on a fire-boat 240 Building ships under artificial light at Hog Island Shipyard 241 Artificial light in photography 256 Sterilizing water with radiant energy from quartz mercury-arcs 257 Judging color under artificial daylight 272 Artificial daylight 273

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