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GRAB a beaker of heavy water and a pair of palladium electrodes: it’s time to start experimenting with cold fusion again, without any need for embarrassment. A review of cold fusion research for the US Department of Energy has recommended that the DOE remain open to the idea.

The review is the DOE’s first since it concluded 15 years ago that cold fusion was a dud. Last year, researchers led by Peter Hagelstein of the Massachusetts Institute of Technology asked the DOE to commission a review of the experimental evidence for “anomalous low-energy nuclear reactions”, such as the fusion of deuterium atoms in an electrolyte.…

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