London: Scientists at the Oxford University are working on a 1930 invention by Albert Einstein to develop an environmentally friendly refrigerator which they claim will run without electricity.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/fridge-can-run-without-power
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/science-and-technology
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electronics