Google Revives Controversial Cold-Fusion Experiments

According to a peer-reviewed paper revealed this week, Google is continuing its experiments into the controversial science of cold fusion — the theory that nuclear fusion, the process that powers the Sun, can produce energy in a table-top experiment at room temperature. While Google’s recent project found no evidence that cold fusion is possible, it did make some advances in measurement and materials-science techniques that the researchers say could benefit energy research. “The team also hopes that its work will inspire others to revisit cold-fusion experiments, even if the phenomenon still fails to materialize,” reports Nature. From the report: The Google team explored three experimental set-ups that have been proposed to generate cold fusion — two involving palladium and hydrogen, and one involving metallic powders and hydrogen. None foundï evidence of fusion. The results have been published across 12 papers over the past 2 years: 9 in peer-reviewed journals and 3ï on the arXiv preprint server. In March 1989, two U.S.-based chemists Stanley Pons and Martin Fleischmann announced that they had seen excess heat and fusion-reaction products — signs of nuclear fusion — when they ran a current across two palladium plates in water laden with deuterium, a heavy isotope of hydrogen. Others quickly pointed out errors in their experimental procedure. Since then, two U.S. Department of Energy reviews have found no evidence of the phenomenon . But cold fusion — now commonly referred to as low-energy nuclear reactions — has retained a persistent following that continues to claim evidence of success. Google’s $10-million project aimed to test the cold-fusion claims rigorously in a field that lacked credible scientific data, says Matthew Trevithick, a research program manager at Google. Another goal was also to push methods in challenging experimental conditions. But, he adds: “The fact that the pay-out could be huge is definitely a component of our interest.