Yahoo Web Search

Search results

  1. Aug 21, 2013 · How does it make meaning? This volume explores the creative potential of light in the theatre. Through a wide range of extracts from historical accounts, new research and rare documents, some...

    • Login

      How does it make meaning? This volume explores the creative...

    • Help Center

      © 2008-2024 ResearchGate GmbH. All rights reserved. Terms;...

  2. Mar 1, 2013 · Another problem was the lack of a cheap electrical supply to make lighting by arc or incandescent a practicable proposition. It was not till 1862 that a commercial electrical arc lighting system appeared in GB at Dungeness lighthouse following earlier trials at the South Foreland Lighthouse in 1856. 6.

    • Brian Spear
    • 2013
  3. The present notions of the theory of four systems of lightingnon-cutoff, semi-cutoff, cutoff, and unidirectional systemsare described and a brief review of modern lanterns is given. The outstanding problems of street lighting are stated.

  4. 1817: Gas-lighting systems are installed in London's two legitimate houses: Drury Lane and Covent Garden. 1820s: Gas light is in experimental use in most countries of the Western World. 1840s: Gas lighting is widely adapted and the gas table (control board) makes its appearance.

  5. Mar 1, 2019 · This book explores the needs and experiences of people at night and how these can be addressed by public lighting. It will give readers the confidence to develop more sophisticated lighting...

  6. Sep 7, 2021 · Street lighting might seem like a product of modernity, but there is little new about it. The Romans illuminated their city streets at night and Islamic cities from Baghdad to Cordoba were lit when most of Europe was living in – in terms of street lighting – the so-called Dark Ages.

  7. People also ask

  8. Dec 14, 2016 · All the studies on light from the antiquity until the middle of nineteenth century were based on incoherent light sources such as the sun, candle light, sodium lamp, or light bulb. In 1950s a new coherent source of light was invented, first in the microwave region and then in the optical region.