FACTOID # 87: 22% of American women aged 20 gave birth while in their teens. In Switzerland and Japan, only 2% did so.
 
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Encyclopedia > Timeline of lighting technology

Timeline of lighting technology Alternative meanings: Timeline is a 1999 science fiction novel by Michael Crichton Timeline is a 2003 film based on the novel. ... Lighting refers to either artificial light sources such as lamps or to natural illumination of interiors from daylight. ... } the surface of the planet for the first time and explore space. ...


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Timeline of lighting technology - definition of Timeline of lighting technology in Encyclopedia (222 words)
Timeline of lighting technology - definition of Timeline of lighting technology in Encyclopedia
1792 William Murdoch lights his house and office by means of gas.
1835 James Bowman Lindsay demonstrates a light bulb based electric lighting system to the citizens of Dundee.
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