Old Subject: Lighting Technology

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GravityLight is a "gravity-powered lamp" designed by Deciwatt. It is used in "developing or third-world nations, as a replacement for kerosene lamps" and was named "one of The 25 Best...

It is devoted to maintaining and safeguarding the natural nighttime environment and the history of dark skies via ecologically responsible outdoor lighting. It achieves its purpose nationally and worldwide through...

Rajendra K. Pachauri (b.1940) is an economist and environmental scientist, former chair of the UN’s authoritative Intergovernmental Panel on Climate Change (2002-2015), and former Director General of The Energy and...